[NETBEANS-1577] Assertion Error in Java autocompletion

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.0
• Fix Version/s: 10.0
• Component/s: java - Editor

Environment

Netbeans 10.0-vc1

• Assignee: Unassigned
• Reporter: Aldo Brucale
• Created: 29/Oct/18 10:21
• Updated: 06/Nov/18 11:21
• Resolved: 06/Nov/18 11:21

Description

Often when I hit ctrl-space I get this exception:

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.Annotate.fromAnnotations(Annotate.java:167)
	at com.sun.tools.javac.comp.Annotate.lambda$annotateTypeSecondStage$5(Annotate.java:1031)
	at com.sun.tools.javac.comp.Annotate.flush(Annotate.java:194)
	at com.sun.tools.javac.comp.Annotate.unblockAnnotations(Annotate.java:144)
	at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1173)
	at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:962)
	at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:660)
	at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:736)
	at com.sun.tools.javac.comp.Attr.visitForeachLoop(Attr.java:1402)
	at com.sun.tools.javac.tree.JCTree$JCEnhancedForLoop.accept(JCTree.java:1166)
	at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:660)
	at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:736)
	at org.netbeans.modules.java.hints.spiimpl.Utilities.attributeTree(Utilities.java:651)
	at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:430)
	at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:344)
	at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:324)
	at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:320)
	at org.netbeans.modules.java.hints.spiimpl.pm.PatternCompiler.compile(PatternCompiler.java:44)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:535)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:450)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:221)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:193)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:166)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:128)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
	at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:65)
	at org.netbeans.modules.java.source.JavaSourceAccessor$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)
[catch] 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)

When the exception appears, subsequent attempts fail with the same exception.