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M2 and earlier. When starting up a nested Eclipse with IOException breakpoints I regularly get the trace below. looks like the protocol for binary EMF files is slightly different. Thread [Worker-5] (Suspended (exception IOException)) owns: Object (id=1338) owns: GrammarProvider (id=1339) owns: Class<T> (com.google.inject.internal.InternalInjectorCreator) (id=1317) owns: Collections$SynchronizedMap<K,V> (id=1340) owns: ResourceServiceProviderDescriptor (id=1341) owns: ClusteringBuilderState (id=1342) XMLResourceImpl$1(BinaryResourceImpl$EObjectInputStream).fill() line: 2695 XMLResourceImpl$1(BinaryResourceImpl$EObjectInputStream).readByte() line: 2685 XMLResourceImpl$1(BinaryResourceImpl$EObjectInputStream).readCompressedInt() line: 2822 XMIResourceImpl(XMLResourceImpl).doLoad(InputStream, Map<?,?>) line: 219 XMIResourceImpl(ResourceImpl).load(InputStream, Map<?,?>) line: 1518 XMIResourceImpl(ResourceImpl).load(Map<?,?>) line: 1297 SynchronizedXtextResourceSet(ResourceSetImpl).demandLoad(Resource) line: 259 SynchronizedXtextResourceSet(ResourceSetImpl).demandLoadHelper(Resource) line: 274 SynchronizedXtextResourceSet(XtextResourceSet).getResource(URI, boolean) line: 201 SynchronizedXtextResourceSet.getResource(URI, boolean) line: 26 BaseEPackageAccess.loadResource(String, XtextResourceSet) line: 52 BaseEPackageAccess.loadGrammarFile(String, XtextResourceSet) line: 44 GrammarProvider.getGrammar(Object) line: 60 TerminalsGrammarAccess.internalFindGrammar(GrammarProvider) line: 37 TerminalsGrammarAccess.<init>(GrammarProvider) line: 33 NativeConstructorAccessorImpl.newInstance0(Constructor, Object[]) line: not available [native method] NativeConstructorAccessorImpl.newInstance(Object[]) line: 57 DelegatingConstructorAccessorImpl.newInstance(Object[]) line: 45 Constructor<T>.newInstance(Object...) line: 525 DefaultConstructionProxyFactory$1.newInstance(Object...) line: 85 ConstructorInjector<T>.construct(Errors, InternalContext, Class<?>, boolean) line: 85 ConstructorBindingImpl$Factory<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 254 ProviderToInternalFactoryAdapter$1.call(InternalContext) line: 46 InjectorImpl.callInContext(ContextualCallable<T>) line: 1031 ProviderToInternalFactoryAdapter<T>.get() line: 40 Scopes$1$1.get() line: 65 InternalFactoryToProviderAdapter<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 40 SingleParameterInjector<T>.inject(Errors, InternalContext) line: 38 SingleParameterInjector<T>.getAll(Errors, InternalContext, SingleParameterInjector<?>[]) line: 62 ConstructorInjector<T>.construct(Errors, InternalContext, Class<?>, boolean) line: 84 ConstructorBindingImpl$Factory<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 254 ProviderToInternalFactoryAdapter$1.call(InternalContext) line: 46 InjectorImpl.callInContext(ContextualCallable<T>) line: 1031 ProviderToInternalFactoryAdapter<T>.get() line: 40 Scopes$1$1.get() line: 65 InternalFactoryToProviderAdapter<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 40 FactoryProxy<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 54 SingleFieldInjector.inject(Errors, InternalContext, Object) line: 53 MembersInjectorImpl<T>.injectMembers(T, Errors, InternalContext, boolean) line: 110 ConstructorInjector<T>.construct(Errors, InternalContext, Class<?>, boolean) line: 94 ConstructorBindingImpl$Factory<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 254 ProviderToInternalFactoryAdapter$1.call(InternalContext) line: 46 InjectorImpl.callInContext(ContextualCallable<T>) line: 1031 ProviderToInternalFactoryAdapter<T>.get() line: 40 Scopes$1$1.get() line: 65 InternalFactoryToProviderAdapter<T>.get(Errors, InternalContext, Dependency<?>, boolean) line: 40 InternalInjectorCreator$1.call(InternalContext) line: 204 InternalInjectorCreator$1.call(InternalContext) line: 198 InjectorImpl.callInContext(ContextualCallable<T>) line: 1024 InternalInjectorCreator.loadEagerSingletons(InjectorImpl, Stage, Errors) line: 198 InternalInjectorCreator.injectDynamically() line: 179 InternalInjectorCreator.build() line: 109 Guice.createInjector(Stage, Iterable<Module>) line: 95 Guice.createInjector(Iterable<Module>) line: 72 Guice.createInjector(Module...) line: 62 Activator(Activator).createInjector(String) line: 67 Activator(Activator).getInjector(String) line: 55 XtextExecutableExtensionFactory.getInjector() line: 26 XtextExecutableExtensionFactory(AbstractGuiceAwareExecutableExtensionFactory).create() line: 49 ConfigurationElement.createExecutableExtension(String) line: 262 ConfigurationElementHandle.createExecutableExtension(String) line: 55 ResourceServiceProviderDescriptor.get(URI, String) line: 39 ResourceServiceProviderRegistryImpl$InternalData.getServiceProvider(URI, String) line: 40 ResourceServiceProviderRegistryImpl.getResourceServiceProvider(URI, String) line: 77 ResourceServiceProviderRegistryImpl.getResourceServiceProvider(URI) line: 93 UriValidator.isValid(URI, IStorage) line: 27 Storage2UriMapperJavaImpl$1.getURI(IJarEntryResource, PackageFragmentRootWalker$TraversalState) line: 217 Storage2UriMapperJavaImpl$1(SourceAttachmentPackageFragmentRootWalker<T>).handle(IJarEntryResource, TraversalState) line: 279 Storage2UriMapperJavaImpl$1(PackageFragmentRootWalker<T>).traverse(IJarEntryResource, boolean, TraversalState) line: 100 Storage2UriMapperJavaImpl$1(PackageFragmentRootWalker<T>).traverse(IPackageFragment, boolean, TraversalState) line: 88 Storage2UriMapperJavaImpl$1(PackageFragmentRootWalker<T>).traverse(IPackageFragmentRoot, boolean) line: 65 Storage2UriMapperJavaImpl$1(SourceAttachmentPackageFragmentRootWalker<T>).traverse(IPackageFragmentRoot, boolean) line: 168 Storage2UriMapperJavaImpl.initializeData(IPackageFragmentRoot) line: 230 Storage2UriMapperJavaImpl.getCachedData(IPackageFragmentRoot) line: 169 Storage2UriMapperJavaImpl.updateCache(IJavaProject) line: 323 Storage2UriMapperJavaImpl.initializeCache() line: 357 ClusteringBuilderState(AbstractBuilderState).load() line: 62 ClusteringBuilderState(AbstractBuilderState).ensureLoaded() line: 69 ClusteringBuilderState(AbstractBuilderState).getAllResourceDescriptions() line: 89 JdtToBeBuiltComputer(ToBeBuiltComputer).doRemoveProject(IProject, IProgressMonitor) line: 56 JdtToBeBuiltComputer(ToBeBuiltComputer).removeProject(IProject, IProgressMonitor) line: 52 JdtToBeBuiltComputer.removeProject(IProject, IProgressMonitor) line: 78 ProjectOpenedOrClosedListener.scheduleRemoveProjectJob(IProject) line: 125 ProjectOpenedOrClosedListener$1.visit(IResourceDelta) line: 102 ResourceDelta.accept(IResourceDeltaVisitor, int) line: 69 ResourceDelta.accept(IResourceDeltaVisitor, int) line: 80 ResourceDelta.accept(IResourceDeltaVisitor) line: 49 ProjectOpenedOrClosedListener.resourceChanged(IResourceChangeEvent) line: 87 ComposedResourceChangeListener.resourceChanged(IResourceChangeEvent) line: 29 NotificationManager$1.run() line: 291 SafeRunner.run(ISafeRunnable) line: 42 NotificationManager.notify(ResourceChangeListenerList$ListenerEntry[], IResourceChangeEvent, boolean) line: 285 NotificationManager.broadcastChanges(ElementTree, ResourceChangeEvent, boolean) line: 149 Workspace.broadcastPostChange() line: 396 Workspace.endOperation(ISchedulingRule, boolean, IProgressMonitor) line: 1531 RefreshJob(InternalWorkspaceJob).run(IProgressMonitor) line: 45 Worker.run() line: 53
For backwards compatibility the code first tries to load a *.xtextbin file and if that doesn't exist (i.e. it throws the exception from comment #0) it looks for the old xmi version. See org.eclipse.xtext.service.GrammarProvider.getGrammar(Object) I guess you have a language which you haven't regenerated recently so it still loads the grammar from *.xmi? Please reopen if I'm wrong.
(In reply to Sven Efftinge from comment #1) > I guess you have a language which you haven't regenerated recently so it > still loads the grammar from *.xmi? Please reopen if I'm wrong. That may be, but it's "classpath:/org/eclipse/xtext/Xtext.xtextbin" that is the URI of the problem resource.
(In reply to Ed Willink from comment #2) > (In reply to Sven Efftinge from comment #1) > > I guess you have a language which you haven't regenerated recently so it > > still loads the grammar from *.xmi? Please reopen if I'm wrong. > > That may be, but it's "classpath:/org/eclipse/xtext/Xtext.xtextbin" that is > the URI of the problem resource. Could you check whether the file is contained in the jar(org.eclipse.xtext) you are using and whether it has content?
After instrumenting BinaryResourceImpl.EObjectInputStream.fill() it seems that for my grammar, a series of reads, none of which retuirn 0 or -1. Whereas for Xtext.xtextbin, a series of reads occur the last of which returns -1. It would seem that the Xtext processing is attempting to read excessively.
