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Content assist does not work [message #780242]

Tue, 17 January 2012 12:46

Peter Johnsen

Messages: 60
Registered: January 2012

Member

Hi,

After an intensive Xtext week things are getting up and running. So far Xtext has worked nicely!

The only thing that remains is content assist, which does not work. My project has no errors and everything works as it should. However, when I press Ctrl + space in an attempt to bring up code suggestions, an exception is thrown (each time).

Does anyone have any idea why this happens?

java.lang.VerifyError: Inconsistent stackmap frames at branch target 173 in method com.model.generator.ui.contentassist.antlr.internal.InternalGeneratorParser.rule__NumericValue__Alternatives()V at offset 330
	at com.model.generator.ui.contentassist.antlr.GeneratorParser.createParser(GeneratorParser.java:29)
	at com.model.generator.ui.contentassist.antlr.GeneratorParser.createParser(GeneratorParser.java:1)
	at org.eclipse.xtext.ui.editor.contentassist.antlr.AbstractContentAssistParser.getFollowElements(AbstractContentAssistParser.java:283)
	at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory$StatefulFactory.handleLastCompleteNodeIsAtEndOfDatatypeNode(ParserBasedContentAssistContextFactory.java:205)
	at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory$StatefulFactory.doCreateContexts(ParserBasedContentAssistContextFactory.java:156)
	at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory$StatefulFactory.create(ParserBasedContentAssistContextFactory.java:143)
	at org.eclipse.xtext.ui.editor.contentassist.antlr.ParserBasedContentAssistContextFactory.create(ParserBasedContentAssistContextFactory.java:533)
	at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:48)
	at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:1)

[Updated on: Tue, 17 January 2012 12:47]

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Re: Content assist does not work [message #780325 is a reply to message #780242]

Tue, 17 January 2012 15:59

Karsten Thoms

Messages: 740
Registered: July 2009
Location: Dortmund, Germany

Senior Member

No Message Body

Need professional support for Xtext, EMF, Eclipse IDE?
Go to: http://devhub.karakun.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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Re: Content assist does not work [message #780327 is a reply to message #780325]

Tue, 17 January 2012 16:01

Karsten Thoms

Messages: 740
Registered: July 2009
Location: Dortmund, Germany

Senior Member

Not really, but looks like Bug#356002. This is marked fixed for Eclipse 3.7.1. Are you using 3.7.0?

~Karsten

Need professional support for Xtext, EMF, Eclipse IDE?
Go to: http://devhub.karakun.com
Twitter : @kthoms
Blog : www.karsten-thoms.de

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Re: Content assist does not work [message #780398 is a reply to message #780327]

Tue, 17 January 2012 18:11

Peter Johnsen

Messages: 60
Registered: January 2012

Member

Karsten Thoms wrote on Tue, 17 January 2012 11:01

Not really, but looks like Bug#356002. This is marked fixed for Eclipse 3.7.1. Are you using 3.7.0?

~Karsten

I'm using 3.7.1, but it may be something related?

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Re: Content assist does not work [message #780447 is a reply to message #780398]

Tue, 17 January 2012 23:32

Sebastian Zarnekow

Messages: 3108
Registered: July 2009

Senior Member

Yes, that looks like a compiler bug to me. Please file a ticket against
JDT with the generated parser attached.

Thanks,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 17.01.12 19:11, schrieb Peter Johnsen:
> Karsten Thoms wrote on Tue, 17 January 2012 11:01
>> Not really, but looks like Bug#356002. This is marked fixed for
>> Eclipse 3.7.1. Are you using 3.7.0?
>>
>> ~Karsten
>
>
> I'm using 3.7.1, but it may be something related?

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Re: Content assist does not work [message #794853 is a reply to message #780447]

Thu, 09 February 2012 19:39

Damian Gonzalez

Messages: 4
Registered: July 2011

Junior Member

We have seen exactly this error also. Have tried many different permutations of installation options.

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Re: Content assist does not work [message #795457 is a reply to message #794853]

Fri, 10 February 2012 13:43

Sebastian Zarnekow

Messages: 3108
Registered: July 2009

Senior Member

Am 09.02.12 20:39, schrieb Damian Mising name:
> We have seen exactly this error also. Have tried many different
> permutations of installation options.

Suggestion's still true: Please file a ticket against JDT with the
generated parser attached.

Thanks,
Sebastian

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Re: Content assist does not work [message #875304 is a reply to message #780242]

Tue, 22 May 2012 13:47

Damian Gonzalez

Messages: 4
Registered: July 2011

Junior Member

FYI. This came up again recently. There are two primary ways to solve this:

1) If you have Java 1.7 installed, you need to use 1.6 in the "Compiler compliance level" via the following sequence in Eclipse
Window -> Preferences -> Java -> Compiler

2) Alternatively, you can just uninstall Java 1.7 and install 1.6 instead
www.oracle.com/technetwork/java/javase/downloads/jdk-6u32-downloads-1594644.html

[Updated on: Tue, 22 May 2012 15:06]

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