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Code  ›  392752 – java.lang.UnsupportedOperationException at com.google.common.collect.ImmutableMap.put(ImmutableMap.java:278)
last maps
https://bugs.eclipse.org/bugs/show_bug.cgi?id=392752
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    • Bugzilla – Bug 392752 java.lang.UnsupportedOperationException at com.google.common.collect.ImmutableMap.put(ImmutableMap.java:278) Last modified: 2017-03-13 03:19:57 EDT 
    I've migrated from Xtext 2.1.1 to Xtext 2.3.1 and get an exception when running my generator (which is based on xtend2) with a mwe2 workflow:
     [echo] Starting generation process...
     [java] 2012-10-24 15:13:27,403 [main] ERROR org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher - com/google/inject/internal/Maps
     [java] java.lang.NoClassDefFoundError: com/google/inject/internal/Maps
     [java] 	at org.eclipse.emf.mwe2.language.scoping.InjectableFeatureLookup.getInjectableFeatures(InjectableFeatureLookup.java:29)
     [java] 	at org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.createComponentFeaturesScope(Mwe2ScopeProvider.java:132)
     [java] 	at org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.scope_Assignment_feature(Mwe2ScopeProvider.java:60)
     [java] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     [java] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     [java] 	at java.lang.reflect.Method.invoke(Method.java:597)
     [java] 	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
     [java] 	at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.polymorphicFindScopeForReferenceName(AbstractDeclarativeScopeProvider.java:150)
     [java] 	at org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.getScope(AbstractDeclarativeScopeProvider.java:98)
     [java] 	at org.eclipse.xtext.linking.impl.DefaultLinkingService.getScope(DefaultLinkingService.java:59)
     [java] 	at org.eclipse.xtext.linking.impl.DefaultLinkingService.getLinkedObjects(DefaultLinkingService.java:119)
     [java] 	at org.eclipse.xtext.linking.lazy.LazyLinkingResource.getEObject(LazyLinkingResource.java:179)
     [java] 	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getEObject(ResourceSetImpl.java:219)
     [java] 	at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:203)
     [java] 	at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:263)
Looks like it's the same problem reported here:
http://www.eclipse.org/forums/index.php?t=msg&th=262950/
I guess it's a jar dependency issue with google guice and mwe2...
Regards
Serano
    The problem seems to be in the org.eclipse.xtext.generator.GeneratorComponent class.
public class GeneratorComponent implements IWorkflowComponent {
     * @since 2.3
     protected Map<String, OutputConfiguration> getOutputConfigurations() {
           IOutputConfigurationProvider outputConfigurationProvider = injector
                     .getInstance(IOutputConfigurationProvider.class);
           Set<OutputConfiguration> configurations = outputConfigurationProvider.getOutputConfigurations();
// bug ==> instanciates a SingletonImmutableMap
           return uniqueIndex(configurations, new Function<OutputConfiguration, String>() {
                public String apply(OutputConfiguration from) {
                     return from.getName();
As a workaround sub-class the GeneratorComponent and override the method as follows:
	@Override
	protected Map<String, OutputConfiguration> getOutputConfigurations() {
		IOutputConfigurationProvider outputConfigurationProvider =  getInjector().getInstance(IOutputConfigurationProvider.class);
		Set<OutputConfiguration> configurations = outputConfigurationProvider.getOutputConfigurations();
			return newLinkedHashMap(uniqueIndex(configurations, new Function<OutputConfiguration, String>() {
				public String apply(OutputConfiguration from) {
				return from.getName();
Regards
Serano
    the problem here was the I still had in the project old mwe2 jars.
After I removed the old jars the mwe2 workflow of my generator ended with a new issue:
     [java] 2012-10-25 09:54:51,973 [main] ERROR org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher - Problems running workflow com.csg.cs.tools.mdgen.icm.generator.wf.IcmDslGenerator: null
     [java] java.lang.RuntimeException: Problems running workflow com.csg.cs.tools.mdgen.icm.generator.wf.IcmDslGenerator: null
     [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
     [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
     [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
     [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
     [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
     [java] Caused by: java.lang.UnsupportedOperationException
     [java]     at com.google.common.collect.ImmutableMap.put(ImmutableMap.java:278)
     [java]     at org.eclipse.xtext.generator.AbstractFileSystemAccess.setOutputPath(AbstractFileSystemAccess.java:64)
     [java]     at org.eclipse.xtext.generator.GeneratorComponent.getConfiguredFileSystemAccess(GeneratorComponent.java:135)
     [java]     at com.csg.cs.tools.mdgen.icm.generator.wf.McpWorkflowComponent.invokePrivate(McpWorkflowComponent.java:51)
     [java]     at com.csg.cs.tools.mdgen.icm.generator.wf.McpWorkflowComponent.invoke(McpWorkflowComponent.java:43)
see workaround in my other comment.
(In reply to comment #0)
> I've migrated from Xtext 2.1.1 to Xtext 2.3.1 and get an exception when
> running my generator (which is based on xtend2) with a mwe2 workflow:    
> [echo] Starting generation process...
     [java] 2012-10-24 15:13:27,403
> [main] ERROR org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher -
> com/google/inject/internal/Maps
     [java] java.lang.NoClassDefFoundError:
> com/google/inject/internal/Maps
     [java] 	at
> org.eclipse.emf.mwe2.language.scoping.InjectableFeatureLookup.
> getInjectableFeatures(InjectableFeatureLookup.java:29)
     [java] 	at
> org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.
> createComponentFeaturesScope(Mwe2ScopeProvider.java:132)
     [java] 	at
> org.eclipse.emf.mwe2.language.scoping.Mwe2ScopeProvider.
> scope_Assignment_feature(Mwe2ScopeProvider.java:60)
     [java] 	at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java] 	at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
     [java] 	at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.
> java:25)
     [java] 	at java.lang.reflect.Method.invoke(Method.java:597)
> [java] 	at
> org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.
> java:291)
     [java] 	at
> org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.
> polymorphicFindScopeForReferenceName(AbstractDeclarativeScopeProvider.java:
     [java] 	at
> org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider.
> getScope(AbstractDeclarativeScopeProvider.java:98)
     [java] 	at
> org.eclipse.xtext.linking.impl.DefaultLinkingService.
> getScope(DefaultLinkingService.java:59)
     [java] 	at
> org.eclipse.xtext.linking.impl.DefaultLinkingService.
> getLinkedObjects(DefaultLinkingService.java:119)
     [java] 	at
> org.eclipse.xtext.linking.lazy.LazyLinkingResource.
> getEObject(LazyLinkingResource.java:179)
     [java] 	at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.
> getEObject(ResourceSetImpl.java:219)
     [java] 	at
> org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:203)
     [java]
> at org.eclipse.emf.ecore.util.EcoreUtil.resolve(EcoreUtil.java:263)
Looks
> like it's the same problem reported here:
> http://www.eclipse.org/forums/index.php?t=msg&th=262950/
I guess it's a jar
> dependency issue with google guice and mwe2...
Regards
Serano
     
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