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The following incident was reported via the automated error reporting: code: 2 plugin: org.eclipse.core.resources_3.10.0.v20150423-0755 message: Problems occurred when invoking code from plug-in: "org.eclipse.core.resources". fingerprint: 20732970 exception class: java.lang.LinkageError exception message: loader constraint violation in interface itable initialization: when resolving method "org.eclipse.xtend.core.jvmmodel.XtendJvmModelInferrer$2.accept(Lorg/eclipse/xtext/common/types/JvmDeclaredType;Lorg/eclipse/xtext/xbase/lib/Procedures$Procedure1;)V" the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) of the current class, org/eclipse/xtend/core/jvmmodel/XtendJvmModelInferrer$2, and the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) for interface org/eclipse/xtext/xbase/jvmmodel/IJvmDeclaredTypeAcceptor have different Class objects for the type org/eclipse/xtext/xbase/lib/Procedures$Procedure1 used in the signature number of children: 0 java.lang.LinkageError: loader constraint violation in interface itable initialization: when resolving method "org.eclipse.xtend.core.jvmmodel.XtendJvmModelInferrer$2.accept(Lorg/eclipse/xtext/common/types/JvmDeclaredType;Lorg/eclipse/xtext/xbase/lib/Procedures$Procedure1;)V" the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) of the current class, org/eclipse/xtend/core/jvmmodel/XtendJvmModelInferrer$2, and the class loader (instance of org/eclipse/osgi/internal/loader/EquinoxClassLoader) for interface org/eclipse/xtext/xbase/jvmmodel/IJvmDeclaredTypeAcceptor have different Class objects for the type org/eclipse/xtext/xbase/lib/Procedures$Procedure1 used in the signature at org.eclipse.xtend.core.jvmmodel.XtendJvmModelInferrer.infer(XtendJvmModelInferrer.java:155) at org.eclipse.xtext.xbase.jvmmodel.JvmModelAssociator.installDerivedState(JvmModelAssociator.java:382) at org.eclipse.xtext.resource.DerivedStateAwareResource.installDerivedState(DerivedStateAwareResource.java:240) at org.eclipse.xtext.resource.DerivedStateAwareResourceDescriptionManager.internalGetResourceDescription(DerivedStateAwareResourceDescriptionManager.java:54) at org.eclipse.xtext.resource.impl.DefaultResourceDescriptionManager$1.get(DefaultResourceDescriptionManager.java:62) at org.eclipse.xtext.resource.impl.DefaultResourceDescriptionManager$1.get(DefaultResourceDescriptionManager.java:1) at org.eclipse.xtext.util.OnChangeEvictingCache.get(OnChangeEvictingCache.java:77) at org.eclipse.xtext.resource.impl.DefaultResourceDescriptionManager.getResourceDescription(DefaultResourceDescriptionManager.java:59) at org.eclipse.xtext.resource.persistence.StorageAwareResourceDescriptionManager.getResourceDescription(StorageAwareResourceDescriptionManager.java:38) at org.eclipse.xtext.builder.clustering.ClusteringBuilderState.writeNewResourceDescriptions(ClusteringBuilderState.java:400) at org.eclipse.xtext.builder.clustering.ClusteringBuilderState.doUpdate(ClusteringBuilderState.java:134) 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:205) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:245) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:300) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:303) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:359) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:382) at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144) at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) General Information: reported-by: anonymous-id: 3ce2fdf3-145e-4eb6-bac9-b20aac62c83f eclipse-build-id: 4.5.0.I20150603-2000 eclipse-product: org.eclipse.epp.package.modeling.product operating system: Linux 3.16.0 (x86_64) - gtk jre-version: 1.8.0_45-internal-b14 The following plug-ins were present on the execution stack (*): 1. org.eclipse.core.jobs_3.7.0.v20150330-2103 2. org.eclipse.core.runtime_3.11.0.v20150405-1723 3. org.eclipse.xtend.core_2.8.4.v201508050135 4. org.eclipse.xtend_2.1.0.v201505260349 5. org.eclipse.xtext.builder_2.8.4.v201508050135 6. org.eclipse.xtext_2.8.4.v201508050135 7. org.eclipse.xtext.util_2.8.4.v201508050135 8. org.eclipse.xtext.xbase_2.8.4.v201508050135 Please note that: * Messages, stacktraces, and nested status objects may be shortened. * Bug fields like status, resolution, and whiteboard are sent back to reporters. * The list of present bundles and their respective versions was calculated by package naming heuristics. This may or may not reflect reality. Other Resources: * Report: https://dev.eclipse.org/recommenders/committers/confess/#/problems/56040b87e4b001019fa99a37 * Manual: https://dev.eclipse.org/recommenders/community/confess/#/guide Thank you for your assistance. Your friendly error-reports-inbox. This bug was created on behalf of sebastian.zarnekow@xxxxxxxxxxxx.