java.lang.SecurityException: class "org.eclipse.core.runtime.Plugin"'s signer information does not match signer information of other classes in the same package

[johannesquast]

"generateXtext" task throws

java.lang.SecurityException: class "org.eclipse.core.runtime.Plugin"'s signer information does not match signer information of other classes in the same package

when generating code from xcore models.

Problem occurred 2018-06-28, probably due to Eclipse Photon release and same reason as

eclipse-xtext/xtext#1231

[cdietrich]

yes it has. you can apply the same workaround(s) e.g. eclipse-archived/xtext-core@0d30f42

[cdietrich]

=> needs to be fixed on xtext and/or on eclipse platform side

[AresEkb]

I have a similar problem. I have successfully build this example with gradle 3.1: https://github.com/ghillairet/xcore-gradle-example

But I get the SecurityException with gradle 4.8.1.

Dependency trees (gradle dependencies) are almost identical for both gradle versions except guava versions:

Gradle 3.1 use newer version of guava:

+--- org.eclipse.xtext:org.eclipse.xtext.ecore:2.13.0
|    \--- org.eclipse.xtext:org.eclipse.xtext:2.13.0
|         +--- org.eclipse.xtext:org.eclipse.xtext.util:2.13.0
|         |    +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.13.0
|         |    |    +--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.13.0
|         |    |    |    \--- com.google.guava:guava:[14.0,19) -> 18.0
|         |    |    \--- org.eclipse.xtend:org.eclipse.xtend.lib.macro:2.13.0
|         |    |         \--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.13.0 (*)
|         |    +--- log4j:log4j:1.2.16
|         |    +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         |    +--- org.eclipse.emf:org.eclipse.emf.ecore:[2.10.2,3) -> 2.12.0
|         |    \--- com.google.inject:guice:3.0 -> 4.0
|         |         +--- javax.inject:javax.inject:1
|         |         +--- aopalliance:aopalliance:1.0
|         |         \--- com.google.guava:guava:16.0.1 -> 18.0
|         +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.13.0 (*)
|         +--- log4j:log4j:1.2.16
|         +--- org.eclipse.platform:org.eclipse.equinox.common:3.8.0
|         +--- org.eclipse.platform:org.eclipse.osgi:3.11.2
|         +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         +--- org.eclipse.emf:org.eclipse.emf.ecore.xmi:[2.10.2,3) -> 2.12.0
|         +--- com.google.inject:guice:3.0 -> 4.0 (*)
|         \--- org.antlr:antlr-runtime:3.2
\--- org.eclipse.emf:org.eclipse.emf.mwe2.runtime:+ -> 2.9.1.201705291010
     \--- com.google.inject:guice:3.0 -> 4.0 (*)

Gradle 4.8.1:

+--- org.eclipse.xtext:org.eclipse.xtext.ecore:2.13.0
|    \--- org.eclipse.xtext:org.eclipse.xtext:2.13.0
|         +--- org.eclipse.xtext:org.eclipse.xtext.util:2.13.0
|         |    +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.13.0
|         |    |    +--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.13.0
|         |    |    |    \--- com.google.guava:guava:[14.0,19) -> 16.0.1
|         |    |    \--- org.eclipse.xtend:org.eclipse.xtend.lib.macro:2.13.0
|         |    |         \--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.13.0 (*)
|         |    +--- log4j:log4j:1.2.16
|         |    +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         |    +--- org.eclipse.emf:org.eclipse.emf.ecore:[2.10.2,3) -> 2.12.0
|         |    \--- com.google.inject:guice:3.0 -> 4.0
|         |         +--- javax.inject:javax.inject:1
|         |         +--- aopalliance:aopalliance:1.0
|         |         \--- com.google.guava:guava:16.0.1
|         +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.13.0 (*)
|         +--- log4j:log4j:1.2.16
|         +--- org.eclipse.platform:org.eclipse.equinox.common:3.8.0
|         +--- org.eclipse.platform:org.eclipse.osgi:3.11.2
|         +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         +--- org.eclipse.emf:org.eclipse.emf.ecore.xmi:[2.10.2,3) -> 2.12.0
|         +--- com.google.inject:guice:3.0 -> 4.0 (*)
|         \--- org.antlr:antlr-runtime:3.2
\--- org.eclipse.emf:org.eclipse.emf.mwe2.runtime:+ -> 2.9.1.201705291010
     \--- com.google.inject:guice:3.0 -> 4.0 (*)

I added the following to build.gradle:

configurations.all {
    resolutionStrategy { 
        force 'com.google.guava:guava:18.0'
    }
}

Dependency trees are identical now. But I still get the same error with gradle 4.8.1.

I tried also to switch to xtext 2.14.0 and to add some workarounds:

ext {
    xtextVersion = '2.14.0'
}

dependencies {
    compile "org.eclipse.platform:org.eclipse.equinox.common:3.9.0"
    compile("org.eclipse.platform:org.eclipse.core.runtime:3.13.0") {
        exclude group: "org.eclipse.platform", module: "org.eclipse.equinox.common"
    }
}

configurations.all {
    resolutionStrategy { 
        eachDependency { DependencyResolveDetails details ->
            if (details.requested.group == 'com.google.guava') {
                details.useVersion "18.0"
            }
            if (details.requested.group == 'org.eclipse.jdt' && details.requested.name == 'org.eclipse.jdt.core') {
                details.useVersion('3.13.102')
            }
        }
    }
}

But it doesn't help. Could you suggest a solution?

[cdietrich]

please give a hint/stacktrace where the problem is happening

[AresEkb]

Here is a stacktrace:

java.lang.SecurityException: class "org.eclipse.core.runtime.Plugin"'s signer information does not match signer information of other classes in the same package
	at java.lang.ClassLoader.checkCerts(ClassLoader.java:898)
	at java.lang.ClassLoader.preDefineClass(ClassLoader.java:668)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:761)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at org.eclipse.emf.codegen.ecore.genmodel.util.GenModelUtil.getJavaOptions(GenModelUtil.java:128)
	at org.eclipse.emf.codegen.ecore.generator.Generator.getJControlModel(Generator.java:370)
	at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1929)
	at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generatePackageInterface(GenPackageGeneratorAdapter.java:598)
	at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generateModel(GenPackageGeneratorAdapter.java:214)
	at org.eclipse.emf.codegen.ecore.genmodel.generator.GenBaseGeneratorAdapter.doGenerate(GenBaseGeneratorAdapter.java:215)
	at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generate(AbstractGeneratorAdapter.java:317)
	at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:708)
	at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:619)
	at org.eclipse.emf.ecore.xcore.generator.XcoreGenerator.generateGenModel(XcoreGenerator.java:280)
	at org.eclipse.emf.ecore.xcore.generator.XcoreGenerator.doGenerate(XcoreGenerator.java:228)
	at org.eclipse.xtext.generator.GeneratorDelegate.doGenerate(GeneratorDelegate.java:45)
	at org.eclipse.xtext.generator.GeneratorDelegate.generate(GeneratorDelegate.java:34)
	at org.eclipse.xtext.build.IncrementalBuilder$InternalStatefulIncrementalBuilder.generate(IncrementalBuilder.java:309)
	at org.eclipse.xtext.build.IncrementalBuilder$InternalStatefulIncrementalBuilder.lambda$launch$6(IncrementalBuilder.java:246)
	at org.eclipse.xtext.build.ClusteringStorageAwareResourceLoader.lambda$executeClustered$1(ClusteringStorageAwareResourceLoader.java:77)
	at org.eclipse.xtext.xbase.lib.internal.FunctionDelegate.apply(FunctionDelegate.java:42)
	at com.google.common.collect.Lists$TransformingRandomAccessList$1.transform(Lists.java:617)
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
	at java.util.AbstractCollection.toArray(AbstractCollection.java:141)
	at java.util.ArrayList.addAll(ArrayList.java:581)
	at com.google.common.collect.Iterables.addAll(Iterables.java:352)
	at org.eclipse.xtext.build.ClusteringStorageAwareResourceLoader.executeClustered(ClusteringStorageAwareResourceLoader.java:80)
	at org.eclipse.xtext.build.BuildContext.executeClustered(BuildContext.java:55)
	at org.eclipse.xtext.build.IncrementalBuilder$InternalStatefulIncrementalBuilder.launch(IncrementalBuilder.java:251)
	at org.eclipse.xtext.build.IncrementalBuilder.build(IncrementalBuilder.java:399)
	at org.eclipse.xtext.build.IncrementalBuilder.build(IncrementalBuilder.java:384)
	at org.xtext.gradle.builder.XtextGradleBuilder.doBuild(XtextGradleBuilder.java:361)
	at org.xtext.gradle.builder.XtextGradleBuilder.build(XtextGradleBuilder.java:207)
	at org.xtext.gradle.tasks.XtextGenerate.generate(XtextGenerate.java:150)
	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:498)
	at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
	at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
	at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39)
	at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:131)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:120)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:99)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:77)
	at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
	at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
	at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
	at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
	at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
	at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
	at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
	at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
	at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
	at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.run(EventFiringTaskExecuter.java:51)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$ExecuteTaskAction.execute(DefaultTaskExecutionGraph.java:262)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$ExecuteTaskAction.execute(DefaultTaskExecutionGraph.java:246)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:136)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:130)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.execute(DefaultTaskPlanExecutor.java:201)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.executeWithTask(DefaultTaskPlanExecutor.java:192)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:130)
	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:74)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph.execute(DefaultTaskExecutionGraph.java:131)
	at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
	at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
	at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
	at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:46)
	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
	at org.gradle.initialization.DefaultGradleLauncher$ExecuteTasks.run(DefaultGradleLauncher.java:343)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.initialization.DefaultGradleLauncher.runTasks(DefaultGradleLauncher.java:212)
	at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:140)
	at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:115)
	at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:77)
	at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:74)
	at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
	at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:38)
	at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:96)
	at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:74)
	at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
	at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.run(RunAsBuildOperationBuildActionRunner.java:47)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:43)
	at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:50)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:46)
	at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:65)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:46)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:32)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
	at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:62)
	at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:34)
	at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
	at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
	at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
	at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
	at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:59)
	at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:31)
	at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
	at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
	at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:46)
	at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
	at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
	at org.gradle.util.Swapper.swap(Swapper.java:38)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
	at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)

[cdietrich]

did you try to do the same you did for jdt for core.runtime and equinox.common and specify the versions to be used expliitely?

[johannesquast]

My current workaround is to downgrade Xtext on the projects containing a xcore model.

xtext {
  version = "2.10.0"
...
}

With version 2.10.0, the mentioned Exception does not occur.

[cdietrich]

as i said: you need to make sure jdt core.runtime and equinox.common match

[AresEkb]

@johannesquast thanks! xtext 2.10.0 works

@cdietrich

I added the following:

configurations.all {
    resolutionStrategy { 
        force 'com.google.guava:guava:21.0'
        force 'org.eclipse.platform:org.eclipse.equinox.common:3.9.0'
        force 'org.eclipse.platform:org.eclipse.equinox.registry:3.7.0'
        force 'org.eclipse.platform:org.eclipse.osgi:3.12.100'
        force 'org.eclipse.platform:org.eclipse.core.runtime:3.13.0'
        eachDependency { DependencyResolveDetails details ->
            if (details.requested.group == 'com.google.guava') {
                details.useVersion '21.0'
            }
            if (details.requested.group == 'org.eclipse.jdt' && details.requested.name == 'org.eclipse.jdt.core') {
                details.useVersion('3.13.102')
            }
        }
    }
}

Here is a dependency tree:

xtextLanguages
+--- org.eclipse.emf:org.eclipse.emf.ecore.xcore:+ -> 1.3.1
+--- org.eclipse.emf:org.eclipse.emf.ecore.xcore.lib:+ -> 1.1.100
+--- org.eclipse.emf:org.eclipse.emf.codegen:+ -> 2.11.0
+--- org.eclipse.emf:org.eclipse.emf.codegen.ecore:+ -> 2.12.0
+--- org.eclipse.emf:org.eclipse.emf.codegen.ecore.xtext:+ -> 1.2.0
+--- org.eclipse.xtext:org.eclipse.xtext.ecore:2.14.0
|    \--- org.eclipse.xtext:org.eclipse.xtext:2.14.0
|         +--- org.eclipse.xtext:org.eclipse.xtext.util:2.14.0
|         |    +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.14.0
|         |    |    +--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.14.0
|         |    |    |    \--- com.google.guava:guava:[14.0,22) -> 21.0
|         |    |    \--- org.eclipse.xtend:org.eclipse.xtend.lib.macro:2.14.0
|         |    |         \--- org.eclipse.xtext:org.eclipse.xtext.xbase.lib:2.14.0 (*)
|         |    +--- log4j:log4j:1.2.16
|         |    +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         |    +--- org.eclipse.emf:org.eclipse.emf.ecore:[2.10.2,3) -> 2.12.0
|         |    \--- com.google.inject:guice:3.0 -> 4.0
|         |         +--- javax.inject:javax.inject:1
|         |         +--- aopalliance:aopalliance:1.0
|         |         \--- com.google.guava:guava:16.0.1 -> 21.0
|         +--- org.eclipse.xtend:org.eclipse.xtend.lib:2.14.0 (*)
|         +--- log4j:log4j:1.2.16
|         +--- org.eclipse.platform:org.eclipse.equinox.common:3.8.0 -> 3.9.0
|         +--- org.eclipse.platform:org.eclipse.osgi:3.11.2 -> 3.12.100
|         +--- org.eclipse.emf:org.eclipse.emf.common:[2.10.1,3) -> 2.12.0
|         +--- org.eclipse.emf:org.eclipse.emf.ecore.xmi:[2.10.2,3) -> 2.12.0
|         +--- com.google.inject:guice:3.0 -> 4.0 (*)
|         \--- org.antlr:antlr-runtime:3.2
\--- org.eclipse.emf:org.eclipse.emf.mwe2.runtime:+ -> 2.9.1.201705291010
     \--- com.google.inject:guice:3.0 -> 4.0 (*)

It doesn't help

[cdietrich]

problem is not the tree of the project.
problem is the tree of the plugin.
do you have a branch with your stuff that i can try?

[AresEkb]

It's here: https://github.com/AresEkb/xcore-gradle-example

[cdietrich]

@oehme do you have any idea how to debug that.
changing resultion strategies for buildscript and configurations does not seem to help
do we do some magic in the xtext builder plugin?

[cdietrich]

in the debug log i can see
13:16:54.998 [DEBUG] [org.apache.http.impl.conn.PoolingHttpClientConnectionManager] Connection released: [id: 266][route: {s}->https://jcenter.bintray.com:443][total kept alive: 4; route allocated: 8 of 20; total allocated: 11 of 20]
13:16:54.998 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Completing Build operation 'Metadata of https://jcenter.bintray.com/org/eclipse/platform/org.eclipse.core.runtime/3.14.0/org.eclipse.core.runtime-3.14.0.jar'
13:16:54.998 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Metadata of https://jcenter.bintray.com/org/eclipse/platform/org.eclipse.core.runtime/3.14.0/org.eclipse.core.runtime-3.14.0.jar' completed
13:16:54.998 [INFO] [org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor] Cached resource https://jcenter.bintray.com/org/eclipse/platform/org.eclipse.core.runtime/3.14.0/org.eclipse.core.runtime-3.14.0.jar is up-to-date (lastModified: Sat Jun 16 14:24:29 CEST 2018).
13:16:54.999 [DEBUG] [org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository] Downloaded artifact 'org.eclipse.core.runtime.jar (org.eclipse.platform:org.eclipse.core.runtime:3.14.0)' from resolver: BintrayJCenter
13:16:54.999 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Completing Build operation 'Resolve org.eclipse.core.runtime.jar (org.eclipse.platform:org.eclipse.core.runtime:3.14.0)'
13:16:54.999 [DEBUG] [org.gradle.internal.operations.DefaultBuildOperationExecutor] Build operation 'Resolve org.eclipse.core.runtime.jar (org.eclipse.platform:org.eclipse.core.runtime:3.14.0)' completed

which resolution strategy is responsible for that?

[cdietrich]

build.gradle.txt
here are my unsuccessful experiments