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https://issues.apache.org/jira/browse/NETBEANS-5896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17488406#comment-17488406
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Michael Bien commented on NETBEANS-5896:
----------------------------------------
nb-javac is basically identical to javac of JDK 17, it is just automatically
backported to java 8 language level (using jackpot).
The only reason nb-javac still exists is because NB has to support running on
JDKs <17. NB 13 doesn't really depend on it anymore (it requires javac of
version 17, where it comes from is not important), its just there to cover a
larger range of JDKs NB can run on.
nb-javac is installed by default on NB 13, but if you run on JDK 17 you can
uninstall it and should have the same experience. Maybe some time in future we
can turn it off automatically if the JDK is recent enough.
> Missing "com.sun.tools.javac.comp.Enter.unenter" with vanilla javac
> -------------------------------------------------------------------
>
> Key: NETBEANS-5896
> URL: https://issues.apache.org/jira/browse/NETBEANS-5896
> Project: NetBeans
> Issue Type: Bug
> Components: java - Compiler
> Affects Versions: 12.4
> Environment: Java 11.0.11 on Windows 10 on NetBeans 12.4 with vanilla
> javac (nb-javac _not_ installed)
> Reporter: Eirik Bakke
> Assignee: Jan Lahoda
> Priority: Major
>
> Working with Compile-on-Save enabled on a Maven-based NetBeans Platform
> project, with vanilla javac (nb-javac _not_ installed), I frequently get the
> following stack trace:
> {noformat}
> java.lang.NoSuchMethodException:
> com.sun.tools.javac.comp.Enter.unenter(com.sun.tools.javac.tree.JCTree$JCCompilationUnit,
> com.sun.tools.javac.tree.JCTree)
> at java.base/java.lang.Class.getDeclaredMethod(Class.java:2475)
> at
> org.netbeans.api.java.source.TreeUtilities.unenter(TreeUtilities.java:927)
> at
> org.netbeans.api.java.source.TreeUtilities.attributeTree(TreeUtilities.java:916)
> at
> org.netbeans.api.java.source.TreeUtilities.attributeTree(TreeUtilities.java:845)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$1.run(DeclarativeHintsParser.java:502)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$1.run(DeclarativeHintsParser.java:477)
> at
> org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:60)
> at
> org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
> at
> org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:357)
> at
> org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:340)
> at
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181)
> at
> org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178)
> at
> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
> at
> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
> at
> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
> at
> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
> at
> org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178)
> at
> org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:311)
> at
> org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:431)
> at
> org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:423)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.resolve(DeclarativeHintsParser.java:477)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.access$000(DeclarativeHintsParser.java:83)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseCondition(DeclarativeHintsParser.java:311)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseConditions(DeclarativeHintsParser.java:258)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseRule(DeclarativeHintsParser.java:215)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseInput(DeclarativeHintsParser.java:184)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.access$200(DeclarativeHintsParser.java:90)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.parse(DeclarativeHintsParser.java:395)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.parseHints(DeclarativeHintRegistry.java:263)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.parseHintFile(DeclarativeHintRegistry.java:239)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.readHints(DeclarativeHintRegistry.java:128)
> at
> org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.computeHints(DeclarativeHintRegistry.java:111)
> at
> org.netbeans.modules.java.hints.spiimpl.RulesManagerImpl.readHints(RulesManagerImpl.java:139)
> at
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:133)
> at
> org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
> at
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
> at
> org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
> at
> org.netbeans.modules.java.source.JavaSourceAccessor$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)
> {noformat}
> Since Compile-on-Save with vanilla javac is a recently introduced feature,
> it's probably good to get each one of these issues reported and fixed.
> The relevant code here was introduced in
> https://github.com/apache/netbeans/pull/2727 .
> (My NetBeans 12.4 build also has https://github.com/apache/netbeans/pull/3054
> manually applied, but I don't think this impacts the issue reported here.)
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