Adapters generation failing

[eduardoafs]

Hello again,

Hope I don't become an assiduous user of this issues tracker :p

So, this time I have an adapter build failing. I thought it was something with the project (I was working on another project and that is working fine), however I started a new project from scratch and the issue persists.

There is a project, org.archware.sosadl, it was not made for me. It has a metamodel generated by Xtext, I can annex it here if it helps. This metamodel is named SosADL, it defines the language sosADL (this exact name, I think the issue is somehow related to the name), namespace prefix sosADL and ns URI http://www-archware.irisa.fr/sosadl/SosADL.

I created a GEMOC XSDM project and from it an empty K3 DSA Project. After pasting a reduced part of the aspects I tried to generate the interface, adapters and language runtime, just to have something to work on. Then the generation of adapters failed, here's the stacktrace:

eclipse.buildId=unknown
java.version=1.8.0_45
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=pt_BR
Command-line arguments:  -os win32 -ws win32 -arch x86_64

org.apache.log4j
Error
Thu Jan 25 13:42:14 CET 2018
fr.inria.diverse.melange.ui.builder.MelangeBuilder  - Error while generating

java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:398)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:483)
	at fr.inria.diverse.melange.ui.menu.GenerateAdapters.execute(GenerateAdapters.java:51)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:291)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:92)
	at sun.reflect.GeneratedMethodAccessor166.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:239)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
	at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:431)
	at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.handleWidgetSelection(AbstractContributionItem.java:446)
	at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.lambda$2(AbstractContributionItem.java:472)
	at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem$$Lambda$216/416692630.handleEvent(Unknown Source)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4238)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3817)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
	at org.eclipse.ui.internal.Workbench$$Lambda$65/1487131937.run(Unknown Source)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	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.equinox.launcher.Main.invokeFramework(Main.java:653)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: org.eclipse.xtext.util.RuntimeIOException: org.eclipse.core.internal.resources.ResourceException: A resource exists with a different case: '/org.archware.sosadl.gemoc/src-gen/org/archware/sosadl/gemoc/sosadl/adapters/sosadlmt/sosadl'.
	at org.eclipse.xtext.builder.EclipseResourceFileSystemAccess2.generateFile(EclipseResourceFileSystemAccess2.java:285)
	at org.eclipse.xtext.builder.EclipseResourceFileSystemAccess2.generateFile(EclipseResourceFileSystemAccess2.java:219)
	at org.eclipse.xtext.generator.AbstractFileSystemAccess.generateFile(AbstractFileSystemAccess.java:99)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator._internalDoGenerate(JvmModelGenerator.java:213)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.internalDoGenerate(JvmModelGenerator.java:1615)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.doGenerate(JvmModelGenerator.java:196)
	at fr.inria.diverse.melange.ui.builder.MelangeBuilder.generateAdapters(MelangeBuilder.java:336)
	at fr.inria.diverse.melange.ui.menu.GenerateAdapters$1.run(GenerateAdapters.java:62)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)
Caused by: org.eclipse.core.internal.resources.ResourceException: A resource exists with a different case: '/org.archware.sosadl.gemoc/src-gen/org/archware/sosadl/gemoc/sosadl/adapters/sosadlmt/sosadl'.
	at org.eclipse.core.internal.resources.Resource.checkDoesNotExist(Resource.java:323)
	at org.eclipse.core.internal.resources.Resource.checkDoesNotExist(Resource.java:301)
	at org.eclipse.core.internal.resources.Folder.assertCreateRequirements(Folder.java:30)
	at org.eclipse.core.internal.resources.Folder.create(Folder.java:93)
	at org.eclipse.core.internal.resources.Folder.create(Folder.java:121)
	at org.eclipse.xtext.builder.EclipseResourceFileSystemAccess2.ensureExists(EclipseResourceFileSystemAccess2.java:336)
	at org.eclipse.xtext.builder.EclipseResourceFileSystemAccess2.ensureParentExists(EclipseResourceFileSystemAccess2.java:327)
	at org.eclipse.xtext.builder.EclipseResourceFileSystemAccess2.generateFile(EclipseResourceFileSystemAccess2.java:274)
	... 8 more

Originally I use a HashMap in the K3 code, it triggered some errors in the generation process then I removed them, for testing purposes (it also simplifies the already-simple version).

This message Caused by: org.eclipse.core.internal.resources.ResourceException: A resource exists with a different case: '/org.archware.sosadl.gemoc/src-gen/org/archware/sosadl/gemoc/sosadl/adapters/sosadlmt/sosadl'. Makes me believe it is something with the naming, I had a problem with names before. However, this time I can't change it. Also, I tried to delete everything and start over, same.

When I remove the aspects it generates empty adapters, but I think this behavior is expected.

I installed: fr.inria.diverse.melange.sdk.feature.group Version: 0.2.1.201801111131