[ https://issues.apache.org/jira/browse/NETBEANS-814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Laszlo Kishalmi resolved NETBEANS-814. -------------------------------------- Resolution: Abandoned > NullPointerException while editing Java file, autocompletion is broken, need > to restart > --------------------------------------------------------------------------------------- > > Key: NETBEANS-814 > URL: https://issues.apache.org/jira/browse/NETBEANS-814 > Project: NetBeans > Issue Type: Bug > Affects Versions: 9.0 > Environment: Linux Fedora 27 > NetBeans 9 RC1 > NetBeans running on Java 10 without nb-javac > Java Maven Project with source version 1.8 > Reporter: Enrico Olivelli > Priority: Major > > I periodically get this error while having a Java file opened in the editor. > I did not find a duplicate in JIRA > {code:java} > java.lang.NullPointerException > at > jdk.compiler/com.sun.tools.javac.api.JavacTrees.getElement(JavacTrees.java:386) > at > jdk.compiler/com.sun.tools.javac.api.JavacTrees.getElement(JavacTrees.java:163) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker$VariablesVisitor.isLocalVariable(PreconditionsChecker.java:226) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker$VariablesVisitor.visitIdentifier(PreconditionsChecker.java:218) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker$VariablesVisitor.visitIdentifier(PreconditionsChecker.java:192) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2251) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitVariable(TreeScanner.java:221) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker$VariablesVisitor.visitVariable(PreconditionsChecker.java:213) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker$VariablesVisitor.visitVariable(PreconditionsChecker.java:192) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:974) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:248) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1032) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > org.netbeans.api.java.source.support.ErrorAwareTreeScanner.visitErroneous(ErrorAwareTreeScanner.java:32) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCErroneous.accept(JCTree.java:2927) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitExpressionStatement(TreeScanner.java:433) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1460) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:419) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1433) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:248) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1032) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitIf(TreeScanner.java:419) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1433) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:248) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1032) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitEnhancedForLoop(TreeScanner.java:306) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCEnhancedForLoop.accept(JCTree.java:1172) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:86) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker.getInnerVariables(PreconditionsChecker.java:90) > at > org.netbeans.modules.java.hints.jdk.mapreduce.PreconditionsChecker.<init>(PreconditionsChecker.java:75) > at > org.netbeans.modules.java.hints.jdk.mapreduce.ForLoopToFunctionalHint.computeWarning(ForLoopToFunctionalHint.java:55) > at jdk.internal.reflect.GeneratedMethodAccessor170.invoke(Unknown Source) > at > java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.base/java.lang.reflect.Method.invoke(Method.java:564) > [catch] at > org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$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 > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:248) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1032) > at > jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitTry(TreeScanner.java:374) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1328) > at > jdk.compiler/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 jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:248) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1032) > at > jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:206) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:898) > at > jdk.compiler/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 > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:90) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:113) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:187) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:808) > at > jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682) > at > org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:610) > at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:105) > at > org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78) > at > jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:113) > at > jdk.compiler/com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:144) > at > jdk.compiler/com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:591) > at > jdk.compiler/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:514) > 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} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@netbeans.apache.org For additional commands, e-mail: commits-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists