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Bug 267941

Summary:	ClassCastException: com.sun.tools.javac.tree.JCTree$JCLambda cannot be cast to com.sun.source.tree.StatementTree
Product:	debugger	Reporter:	Vladimir Voskresensky <vv159170>
Component:	Java	Assignee:	Martin Entlicher <mentlicher>
Status:	RESOLVED FIXED
Severity:	normal	Keywords:	82_HR_FIX
Priority:	P1
Version:	8.2
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	226142
Attachments:	stacktrace

Description Vladimir Voskresensky 2016-09-08 10:52:45 UTC

Build: NetBeans IDE Dev (Build 20160905-d011a8fc67ce)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.92-b14, Java(TM) SE Runtime Environment, 1.8.0_92-b14
OS: SunOS

User Comments:
vv159170: switched to debugger Variables view




Stacktrace: 
java.lang.ClassCastException: com.sun.tools.javac.tree.JCTree$JCLambda cannot be cast to com.sun.source.tree.StatementTree
   at org.netbeans.modules.debugger.jpda.projects.IntroduceClass.getStatements(IntroduceClass.java:254)
   at org.netbeans.modules.debugger.jpda.projects.IntroduceClass.computeIntroduceMethod(IntroduceClass.java:112)
   at org.netbeans.modules.debugger.jpda.projects.CodeSnippetCompiler.compileToClass(CodeSnippetCompiler.java:76)
   at org.netbeans.modules.debugger.jpda.projects.PreferredCCParser.interpretOrCompileCode(PreferredCCParser.java:527)
   at org.netbeans.modules.debugger.jpda.projects.EditorContextSupport.interpretOrCompileCode(EditorContextSupport.java:1452)
   at org.netbeans.modules.debugger.jpda.projectsui.EditorContextImpl.interpretOrCompileCode(EditorContextImpl.java:860)

Comment 1 Vladimir Voskresensky 2016-09-08 10:52:47 UTC

Created attachment 161967 [details]
stacktrace

Comment 2 Martin Entlicher 2016-09-13 12:01:22 UTC

Reproduced.

Comment 3 Martin Entlicher 2016-09-13 16:42:05 UTC

This, together with issue #267994, should be fixed into 8.2 so that we do not get exceptions during lambda evaluations.

Comment 4 Martin Entlicher 2016-09-13 16:45:29 UTC

Fixed by changeset:   300697:67f31e5c2c2a
http://hg.netbeans.org/core-main/rev/67f31e5c2c2a

Comment 5 Martin Entlicher 2016-09-13 16:46:04 UTC

Please verify so that we can back-port to 8.2. Thanks.

Comment 6 Quality Engineering 2016-09-15 02:05:15 UTC

Integrated into 'main-silver', will be available in build *201609150002* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)

Changeset: http://hg.netbeans.org/main-silver/rev/67f31e5c2c2a
User: mentlicher@netbeans.org
Log: #267941, #267994: Make lambda evaluations more robust.

Comment 7 Vladimir Voskresensky 2016-09-16 12:38:33 UTC

I don't remember exact steps, but fast checks doesn't reproduce the problem.

Comment 8 Jiri Kovalsky 2016-09-16 15:28:10 UTC

Integration to release82 branch approved. Martine, please merge the fix. Thanks.

Comment 9 Martin Entlicher 2016-09-16 15:41:10 UTC

Thanks for the check Vladimir and for the approval, Jirko.
The backport is there:
http://hg.netbeans.org/releases/rev/8691116b10cf