[jira] [Updated] (NETBEANS-3300) nb-javac 2.0 fails to parse JavaFX Sources

[John Neffenger (Jira)]

     [ 
https://issues.apache.org/jira/browse/NETBEANS-3300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

John Neffenger updated NETBEANS-3300:
-------------------------------------
    Description: 
In the description below, I'm using the JavaFX sample project for NetBeans 
defined in the [Non-Modular 
Ant|https://github.com/openjfx/samples/tree/master/IDE/NetBeans/Non-Modular/Java]
 directory of the [openjfx/samples|https://github.com/openjfx/samples] 
repository.

Expand the Javadoc and Sources archives of the JavaFX Linux SDK as explained in 
the section _JavaFX SDK_ of the [parent 
issue|https://issues.apache.org/jira/browse/NETBEANS-3296#javafxsdk], and set 
up the project Compile Classpath as described in the section _Add to JAR 
files_. After those changes, the project Libraries should look like the 
following screenshot, with badges for the Javadoc and Sources on each icon of 
the Classpath list.

!compile-classpath.png!

Remove any directories for the Javadoc and Sources in the _JAVAFX13_ Global 
Library, and restart NetBeans. Also make sure the _nb-javac_ plug-in is 
installed.

Open the file _Main.java_ and select the {{show()}} method. The Javadoc Window 
shows the method description, and the two right-most toolbar buttons are 
enabled to show the documentation in an external Web browser and to open the 
source in the editor.

!javadoc-show.png!

Navigate to the source by holding down the _Ctrl_ key while clicking the 
{{show()}} method. The file _Stage.java_ is opened in a new editor window, and 
the cursor is placed on the first line of the {{show()}} method. A red balloon 
with the number "1" appears in the notification area.

!notification.png!

Clicking the red balloon opens the Notification Window to show an Unexpected 
Exception.

!unexpected-exception.png!

Clicking the link in the notification shows the following seven exceptions:

h2. {anchor:javalangassertionerror}java.lang.AssertionError

{code}
java.lang.AssertionError
    at com.sun.tools.javac.util.Assert.error(Assert.java:155)
    at com.sun.tools.javac.util.Assert.checkNonNull(Assert.java:62)
    at 
com.sun.tools.javac.comp.Modules.setCompilationUnitModules(Modules.java:559)
    at com.sun.tools.javac.comp.Modules.enter(Modules.java:287)
    at com.sun.tools.javac.comp.Modules.enter(Modules.java:268)
    at com.sun.tools.javac.comp.Modules.initModules(Modules.java:259)
    at com.sun.tools.javac.main.JavaCompiler.initModules(JavaCompiler.java:1126)
    at com.sun.tools.javac.api.JavacTaskImpl.enter(JavacTaskImpl.java:393)
    at 
org.netbeans.modules.java.source.nbjavac.parsing.TreeLoader.loadTreeFor(TreeLoader.java:164)
    at 
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:816)
    at 
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:842)
    at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:418)
    at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:408)
    at 
org.netbeans.lib.nbjavac.services.NBJavacTrees.getPath(NBJavacTrees.java:83)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolveElementValue(ArithmeticUtilities.java:442)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolve(ArithmeticUtilities.java:490)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:390)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:197)
    at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2231)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:527)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:197)
    at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:197)
    at com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
    at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:234)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities.compute(ArithmeticUtilities.java:178)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:463)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:477)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion.run(InfiniteRecursion.java:152)
    at jdk.internal.reflect.GeneratedMethodAccessor133.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.javadoc.hints.JavadocHint.errorHint(JavadocHint.java:172)
    at jdk.internal.reflect.GeneratedMethodAccessor124.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-1}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.AddOverrideAnnotation.run(AddOverrideAnnotation.java:68)
    at jdk.internal.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-2}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testType(Unbalanced.java:211)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testElement(Unbalanced.java:230)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.before(Unbalanced.java:241)
    at jdk.internal.reflect.GeneratedMethodAccessor109.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.visitBinary(TreeScanner.java:650)
    at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at 
com.sun.source.util.TreeScanner.visitConditionalExpression(TreeScanner.java:429)
    at com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1474)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
    at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:224)
    at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:990)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
    at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-3}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.jdk.mapreduce.ForLoopToFunctionalHint.computeWarning(ForLoopToFunctionalHint.java:53)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
    at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
    at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-4}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.spiimpl.Hacks.parseFQNType(Hacks.java:150)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:525)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:283)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
[catch] at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-5}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.javadoc.hints.JavadocHint.createHint(JavadocHint.java:92)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
    at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:711)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:385)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:221)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}


  was:
In the description below, I'm using the JavaFX sample project for NetBeans 
defined in the [Non-Modular 
Ant|https://github.com/openjfx/samples/tree/master/IDE/NetBeans/Non-Modular/Java]
 directory of the [openjfx/samples|https://github.com/openjfx/samples] 
repository.

Expand the Javadoc and Sources archives of the JavaFX Linux SDK as explained in 
the section _JavaFX SDK_ of the [parent 
issue|https://issues.apache.org/jira/browse/NETBEANS-3296#javafxsdk], and set 
up the project Compile Classpath as described in the section _Add to JAR 
files_. After those changes, the project Libraries should look like the 
following screenshot, with badges for the Javadoc and Sources on each icon of 
the Classpath list.

!compile-classpath.png!

Remove any directories for the Javadoc and Sources in the _JAVAFX13_ Global 
Library, and restart NetBeans. Also make sure the _nb-javac_ plug-in is 
installed.

Open the file _Main.java_ and select the {{show()}} method. The Javadoc Window 
shows the method description, and the two right-most toolbar buttons are 
enabled to show the documentation in an external Web browser and to open the 
source in the editor.

!javadoc-show.png!

Navigate to the source by holding down the _Ctrl_ key while clicking the 
{{show()}} method. The file _Stage.java_ is opened in a new editor window, and 
the cursor is placed on the first line of the {{show()}} method. A red balloon 
with the number -1- appears in the notification area.

!notification.png!

Clicking the red balloon opens the Notification Window to show an Unexpected 
Exception.

!unexpected-exception.png!

Clicking the link in the notification shows the following seven exceptions:

h2. {anchor:javalangassertionerror}java.lang.AssertionError

{code}
java.lang.AssertionError
    at com.sun.tools.javac.util.Assert.error(Assert.java:155)
    at com.sun.tools.javac.util.Assert.checkNonNull(Assert.java:62)
    at 
com.sun.tools.javac.comp.Modules.setCompilationUnitModules(Modules.java:559)
    at com.sun.tools.javac.comp.Modules.enter(Modules.java:287)
    at com.sun.tools.javac.comp.Modules.enter(Modules.java:268)
    at com.sun.tools.javac.comp.Modules.initModules(Modules.java:259)
    at com.sun.tools.javac.main.JavaCompiler.initModules(JavaCompiler.java:1126)
    at com.sun.tools.javac.api.JavacTaskImpl.enter(JavacTaskImpl.java:393)
    at 
org.netbeans.modules.java.source.nbjavac.parsing.TreeLoader.loadTreeFor(TreeLoader.java:164)
    at 
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:816)
    at 
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:842)
    at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:418)
    at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:408)
    at 
org.netbeans.lib.nbjavac.services.NBJavacTrees.getPath(NBJavacTrees.java:83)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolveElementValue(ArithmeticUtilities.java:442)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolve(ArithmeticUtilities.java:490)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:390)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:197)
    at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2231)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:527)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:197)
    at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:197)
    at com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
    at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:234)
    at 
org.netbeans.modules.java.hints.ArithmeticUtilities.compute(ArithmeticUtilities.java:178)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:463)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:477)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.bugs.InfiniteRecursion.run(InfiniteRecursion.java:152)
    at jdk.internal.reflect.GeneratedMethodAccessor133.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.javadoc.hints.JavadocHint.errorHint(JavadocHint.java:172)
    at jdk.internal.reflect.GeneratedMethodAccessor124.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-1}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.AddOverrideAnnotation.run(AddOverrideAnnotation.java:68)
    at jdk.internal.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-2}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testType(Unbalanced.java:211)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testElement(Unbalanced.java:230)
    at 
org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.before(Unbalanced.java:241)
    at jdk.internal.reflect.GeneratedMethodAccessor109.invoke(Unknown Source)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.visitBinary(TreeScanner.java:650)
    at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at 
com.sun.source.util.TreeScanner.visitConditionalExpression(TreeScanner.java:429)
    at com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1474)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
    at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:224)
    at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:990)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
    at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-3}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.jdk.mapreduce.ForLoopToFunctionalHint.computeWarning(ForLoopToFunctionalHint.java:53)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
    at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
    at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
    at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
    at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
    at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
    at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
    at 
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
    at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
    at 
com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
    at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
    at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-4}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.java.hints.spiimpl.Hacks.parseFQNType(Hacks.java:150)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:525)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:283)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
[catch] at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}

h2. {anchor:javalangillegalstateexception-5}java.lang.IllegalStateException

{code}
java.lang.IllegalStateException: Cannot use Elements.getTypeElement before the 
TaskEvent.Kind.ENTER finished event.
    at 
com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
    at 
com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
    at 
com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
    at 
org.netbeans.modules.javadoc.hints.JavadocHint.createHint(JavadocHint.java:92)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
    at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[catch] at 
org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:711)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:385)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:221)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
    at 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
    at 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
    at 
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
    at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
    at 
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
    at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
    at 
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
{code}



> nb-javac 2.0 fails to parse JavaFX Sources
> ------------------------------------------
>
>                 Key: NETBEANS-3300
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-3300
>             Project: NetBeans
>          Issue Type: Sub-task
>    Affects Versions: 11.2
>         Environment: OpenJDK 13.0.1 on Ubuntu 16.04.6 LTS
>            Reporter: John Neffenger
>            Priority: Major
>         Attachments: compile-classpath.png, ide-log.txt, javadoc-show.png, 
> notification.png, ui-log.txt, unexpected-exception.png
>
>
> In the description below, I'm using the JavaFX sample project for NetBeans 
> defined in the [Non-Modular 
> Ant|https://github.com/openjfx/samples/tree/master/IDE/NetBeans/Non-Modular/Java]
>  directory of the [openjfx/samples|https://github.com/openjfx/samples] 
> repository.
> Expand the Javadoc and Sources archives of the JavaFX Linux SDK as explained 
> in the section _JavaFX SDK_ of the [parent 
> issue|https://issues.apache.org/jira/browse/NETBEANS-3296#javafxsdk], and set 
> up the project Compile Classpath as described in the section _Add to JAR 
> files_. After those changes, the project Libraries should look like the 
> following screenshot, with badges for the Javadoc and Sources on each icon of 
> the Classpath list.
> !compile-classpath.png!
> Remove any directories for the Javadoc and Sources in the _JAVAFX13_ Global 
> Library, and restart NetBeans. Also make sure the _nb-javac_ plug-in is 
> installed.
> Open the file _Main.java_ and select the {{show()}} method. The Javadoc 
> Window shows the method description, and the two right-most toolbar buttons 
> are enabled to show the documentation in an external Web browser and to open 
> the source in the editor.
> !javadoc-show.png!
> Navigate to the source by holding down the _Ctrl_ key while clicking the 
> {{show()}} method. The file _Stage.java_ is opened in a new editor window, 
> and the cursor is placed on the first line of the {{show()}} method. A red 
> balloon with the number "1" appears in the notification area.
> !notification.png!
> Clicking the red balloon opens the Notification Window to show an Unexpected 
> Exception.
> !unexpected-exception.png!
> Clicking the link in the notification shows the following seven exceptions:
> h2. {anchor:javalangassertionerror}java.lang.AssertionError
> {code}
> java.lang.AssertionError
>     at com.sun.tools.javac.util.Assert.error(Assert.java:155)
>     at com.sun.tools.javac.util.Assert.checkNonNull(Assert.java:62)
>     at 
> com.sun.tools.javac.comp.Modules.setCompilationUnitModules(Modules.java:559)
>     at com.sun.tools.javac.comp.Modules.enter(Modules.java:287)
>     at com.sun.tools.javac.comp.Modules.enter(Modules.java:268)
>     at com.sun.tools.javac.comp.Modules.initModules(Modules.java:259)
>     at 
> com.sun.tools.javac.main.JavaCompiler.initModules(JavaCompiler.java:1126)
>     at com.sun.tools.javac.api.JavacTaskImpl.enter(JavacTaskImpl.java:393)
>     at 
> org.netbeans.modules.java.source.nbjavac.parsing.TreeLoader.loadTreeFor(TreeLoader.java:164)
>     at 
> com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:816)
>     at 
> com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:842)
>     at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:418)
>     at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:408)
>     at 
> org.netbeans.lib.nbjavac.services.NBJavacTrees.getPath(NBJavacTrees.java:83)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolveElementValue(ArithmeticUtilities.java:442)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.resolve(ArithmeticUtilities.java:490)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:390)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitMemberSelect(ArithmeticUtilities.java:197)
>     at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2231)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:527)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.visitBinary(ArithmeticUtilities.java:197)
>     at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:241)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:197)
>     at 
> com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
>     at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities$VisitorImpl.scan(ArithmeticUtilities.java:234)
>     at 
> org.netbeans.modules.java.hints.ArithmeticUtilities.compute(ArithmeticUtilities.java:178)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:463)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
>     at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitConditional(InfiniteRecursion.java:477)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:454)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.visitIf(InfiniteRecursion.java:227)
>     at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:285)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:298)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion$RecursionVisitor.scan(InfiniteRecursion.java:227)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.bugs.InfiniteRecursion.run(InfiniteRecursion.java:152)
>     at jdk.internal.reflect.GeneratedMethodAccessor133.invoke(Unknown Source)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
>     at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at 
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
>     at 
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.javadoc.hints.JavadocHint.errorHint(JavadocHint.java:172)
>     at jdk.internal.reflect.GeneratedMethodAccessor124.invoke(Unknown Source)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
>     at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at 
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
>     at 
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception-1}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.java.hints.AddOverrideAnnotation.run(AddOverrideAnnotation.java:68)
>     at jdk.internal.reflect.GeneratedMethodAccessor135.invoke(Unknown Source)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
>     at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at 
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
>     at 
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception-2}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testType(Unbalanced.java:211)
>     at 
> org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.testElement(Unbalanced.java:230)
>     at 
> org.netbeans.modules.java.hints.bugs.Unbalanced$Collection.before(Unbalanced.java:241)
>     at jdk.internal.reflect.GeneratedMethodAccessor109.invoke(Unknown Source)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.visitBinary(TreeScanner.java:650)
>     at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2112)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at 
> com.sun.source.util.TreeScanner.visitConditionalExpression(TreeScanner.java:429)
>     at com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1474)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at 
> com.sun.source.util.TreeScanner.visitParenthesized(TreeScanner.java:598)
>     at com.sun.tools.javac.tree.JCTree$JCParens.accept(JCTree.java:1968)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:224)
>     at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:990)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
>     at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
>     at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
>     at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at 
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
>     at 
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception-3}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.java.hints.jdk.mapreduce.ForLoopToFunctionalHint.computeWarning(ForLoopToFunctionalHint.java:53)
>     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>     at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:445)
>     at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1510)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:249)
>     at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1048)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:207)
>     at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:914)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:91)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
>     at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:822)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610)
>     at com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
>     at 
> org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
>     at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
>     at 
> com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
>     at 
> com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:603)
>     at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:245)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception-4}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.java.hints.spiimpl.Hacks.parseFQNType(Hacks.java:150)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:525)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:283)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:228)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
> [catch] at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}
> h2. {anchor:javalangillegalstateexception-5}java.lang.IllegalStateException
> {code}
> java.lang.IllegalStateException: Cannot use Elements.getTypeElement before 
> the TaskEvent.Kind.ENTER finished event.
>     at 
> com.sun.tools.javac.model.JavacElements.ensureEntered(JavacElements.java:891)
>     at 
> com.sun.tools.javac.model.JavacElements.doGetTypeElement(JavacElements.java:171)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:160)
>     at 
> com.sun.tools.javac.model.JavacElements.getTypeElement(JavacElements.java:85)
>     at 
> org.netbeans.modules.javadoc.hints.JavadocHint.createHint(JavadocHint.java:92)
>     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>     at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>     at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:567)
> [catch] at 
> org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:317)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:90)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:711)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:385)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:221)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
>     at 
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
>     at 
> org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
>     at 
> org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
>     at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
>     at 
> org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
>     at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
>     at 
> org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
> {code}



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