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  1. NetBeans
  2. NETBEANS-224

[jdk-javac] NullPointerException

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    Description

      Reproduce:

      While editing a "public abstract class X" I typed "public abstract void " and got the exception below.

      I think this can be also reproducing by entering "public abstract void void " (double void) and pressing "save".

      commit 603d64ca26e9c0852831bebeec0f7e55857a7797
      Merge: 460608ee8 32fc0eaa5
      Author: Jan Lahoda <jlahoda@netbeans.org>
      Date:   Tue Dec 19 20:49:41 2017 +0100
      
      java.lang.NullPointerException
      	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
      	at org.netbeans.modules.java.editor.base.semantic.MethodExitDetector.process(MethodExitDetector.java:79)
      	at org.netbeans.modules.java.editor.base.semantic.MarkOccurrencesHighlighterBase.processImpl(MarkOccurrencesHighlighterBase.java:153)
      	at org.netbeans.modules.java.editor.semantic.MarkOccurrencesHighlighter.process(MarkOccurrencesHighlighter.java:93)
      	at org.netbeans.modules.java.editor.base.semantic.MarkOccurrencesHighlighterBase.run(MarkOccurrencesHighlighterBase.java:97)
      	at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
      [catch] 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)
      
      

      Closing NetBeans and opening again

      java.lang.AssertionError
      	at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:155)
      	at jdk.compiler/com.sun.tools.javac.jvm.Gen.normalizeDefs(Gen.java:457)
      	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2164)
      	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:742)
      	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1621)
      	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl$2.process(JavacTaskImpl.java:451)
      	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl$Filter.run(JavacTaskImpl.java:499)
      	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:454)
      	at org.netbeans.modules.java.source.indexing.VanillaCompileWorker$2.run(VanillaCompileWorker.java:303)
      	at org.netbeans.modules.java.source.parsing.FileManagerTransaction.runConcurrent(FileManagerTransaction.java:180)
      [catch] at org.netbeans.modules.java.source.indexing.VanillaCompileWorker.compile(VanillaCompileWorker.java:294)
      	at org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:273)
      	at org.netbeans.modules.parsing.spi.indexing.Indexable$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$InitialRootsWork.getDone(RepositoryUpdater.java:5821)
      	at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$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$RunnableAdapter.call(Executors.java:514)
      	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
      	at org.openide.util.RequestProcessor$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)
      
      

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