Generate EMF Tooling within another eclipse instance (run as --> Eclipse)

[cgourdin]

Hello, I found a bug with EMF Generate tools, when i open my project (AWS) in another eclipse application instance via "run as" --> Eclipse application. I have validated my model with OCL validation before launching EMF Tools generation.

This give me model validation error :

My main eclipse give this on console after clicking on OK button :

!ENTRY org.eclipse.ui 4 0 2018-01-03 15:41:59.306
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
    at java.util.ArrayList.rangeCheck(ArrayList.java:653)
    at java.util.ArrayList.get(ArrayList.java:429)
    at org.eclipse.cmf.occi.core.gen.emf.ui.popup.actions.OCCI2EMFGeneratorAction.generateEMFCode(OCCI2EMFGeneratorAction.java:260)
    at org.eclipse.cmf.occi.core.gen.emf.ui.popup.actions.OCCI2EMFGeneratorAction.run(OCCI2EMFGeneratorAction.java:152)
    at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:247)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:565)
    at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:397)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4258)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1502)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1525)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1510)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1314)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4082)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3699)
    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.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:498)
    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)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1472)

As the error state it, the bug provide from this line in OCCI2GeneratorAction class in method generateEMFCode :

editOp.addGeneratorAndArguments(GenModelUtil.createGenerator(genModels.get(0)), genModels.get(0),
                "org.eclipse.emf.codegen.ecore.genmodel.generator.EditProject", "Edit");

This issue is maybe linked with issue #34 .

[cgourdin]

Is this linked with issue #9 ?

[fzalila]

6669fc90e2382fe0207a521195affcb9d29371ba