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https://issues.apache.org/jira/browse/NETBEANS-3396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16976146#comment-16976146
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John Neffenger commented on NETBEANS-3396:
------------------------------------------
You might be able to work around the problem by uninstalling the _nb-javac_
plug-in. It's found under Tools > Plugins > Installed > Show details with the
Category _Java_. I find it's not enough to deactivate the plug-in; you must
uninstall it to remove its use. The only issues I have encountered after
uninstalling it myself are NETBEANS-236 and NETBEANS-3301.
I notice the exception report here is similar to the one in NETBEANS-2290 for
_nb-javac_ version 1.72. I got a difference set of exceptions when using
_nb-javac_ version 2.0 (see NETBEANS-3300). Which version of the plug-in are
you using?
> Exception when parsing Java project
> -----------------------------------
>
> Key: NETBEANS-3396
> URL: https://issues.apache.org/jira/browse/NETBEANS-3396
> Project: NetBeans
> Issue Type: Bug
> Affects Versions: 11.2
> Environment: Product Version: Apache NetBeans IDE 11.2
> Java: 13.0.1; Java HotSpot(TM) 64-Bit Server VM 13.0.1+9
> Runtime: Java(TM) SE Runtime Environment 13.0.1+9
> System: Windows 7 version 6.1 running on amd64; Cp1250; cs_CZ (nb)
> User directory: C:\Java\NetBeans\dev\11.2
> Cache directory: C:\Java\NetBeans\cache\dev\11.2
> Reporter: Vít Suchánek
> Priority: Major
>
> This exception occurs repeatedy after IDE is started, Java Maven project
> opened. Then the background scanning process is started and after a while
> this exception occurs (this exception seems to break the background scanning
> because it still consumes CPU but hasn't ever been finished):
> 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
> com.sun.tools.javac.api.JavacTaskImpl.enterTrees(JavacTaskImpl.java:451)
> [catch] at
> org.netbeans.modules.java.source.nbjavac.indexing.MultiPassCompileWorker.compile(MultiPassCompileWorker.java:204)
> at
> org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:361)
> at
> org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:138)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:275)
> at
> org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:136)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2750)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$800(RepositoryUpdater.java:2154)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2636)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2634)
> at
> org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:540)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2634)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5714)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5622)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$4.run(RepositoryUpdater.java:2127)
> at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2123)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2104)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1500(RepositoryUpdater.java:136)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5749)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5419)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5038)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3420)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6183)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$4300(RepositoryUpdater.java:5834)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2$1.run(RepositoryUpdater.java:6099)
> at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
> at
> org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:83)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6095)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6091)
> at
> org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
> at
> org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
> at
> org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
> at
> org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
> at
> org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6091)
> 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)
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