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Xtext Builder runs into a compile error [message #1699236]

Mon, 22 June 2015 17:17

Eclipse User

I have an Xtext plugin that does not compile because of the followin error:

java.lang.Error: Unresolved compilation problem: 
	The method apply(IEObjectDescription) of type EClassFilterPredicate must override a superclass method

	at de.mdsd.xtext.support.sdk.EClassFilterPredicate.apply(EClassFilterPredicate.java:38)
	at de.mdsd.xtext.support.sdk.EClassFilterPredicate.apply(EClassFilterPredicate.java:1)
	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:647)
	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
	at com.google.common.collect.Iterators$5.hasNext(Iterators.java:542)
	at de.mdsd.xtext.formatter2.model.scoping.FormatterModelScopeProvider.scope_GenPackage(FormatterModelScopeProvider.java:198)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:296)
	at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.polymorphicFindScopeForClassName(AbstractDeclarativeScopeProvider.java:125)
	at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.getScope(AbstractDeclarativeScopeProvider.java:102)
	at org.eclipse.xtext.linking.impl.DefaultLinkingService.getScope(DefaultLinkingService.java:59)
	at org.eclipse.xtext.linking.impl.DefaultLinkingService.getLinkedObjects(DefaultLinkingService.java:119)
	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.getEObject(LazyLinkingResource.java:250)
	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.getEObject(LazyLinkingResource.java:225)
	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.doResolveLazyCrossReference(LazyLinkingResource.java:192)
	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.resolveLazyCrossReference(LazyLinkingResource.java:151)
	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.resolveLazyCrossReferences(LazyLinkingResource.java:137)
	at org.eclipse.xtext.EcoreUtil2.resolveLazyCrossReferences(EcoreUtil2.java:528)
	at org.eclipse.xtext.builder.clustering.ClusteringBuilderState.doUpdate(ClusteringBuilderState.java:234)
	at org.eclipse.xtext.builder.builderState.AbstractBuilderState.update(AbstractBuilderState.java:115)
	at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:248)
	at org.eclipse.xtext.builder.impl.XtextBuilder.fullBuild(XtextBuilder.java:280)
	at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:117)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:299)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:302)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:358)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:381)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

The complained method is anotated with "@Override" and its super method is from the interface com.google.common.base.Predicate.

Any idea what could be the reason?
Need more infos ?

Re: Xtext Builder runs into a compile error [message #1699238 is a reply to message #1699236]

Mon, 22 June 2015 17:46

Eclipse User

I fixed the problem. I had one plugin in the eclipse installation and in the workspace that seems to form a conflict with this strange result.

[Updated on: Mon, 22 June 2015 17:47] by Moderator

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