Bug 122382

Description Ed Willink 2005-12-30 06:14:06 EST

When genmodel is invoked for a model with a null EReference.eType a warning appears in the Error Log View regarding a

java.lang.NullPointerException
	at org.eclipse.emf.codegen.ecore.genmodel.impl.GenTypedElementImpl.getTypeGenPackage(GenTypedElementImpl.java:65)
	at org.eclipse.emf.codegen.ecore.genmodel.impl.GenPackageImpl$DependencyHelper.<init>(GenPackageImpl.java:1864)
	at org.eclipse.emf.codegen.ecore.genmodel.impl.GenPackageImpl.generate(GenPackageImpl.java:2385)
	at org.eclipse.emf.codegen.ecore.genmodel.impl.GenModelImpl.generate(GenModelImpl.java:1932)
	at org.eclipse.emf.codegen.ecore.genmodel.impl.GenBaseImpl.generate(GenBaseImpl.java:350)
	at org.eclipse.emf.codegen.ecore.genmodel.presentation.GenModelActionBarContributor$3.generate(GenModelActionBarContributor.java:167)
	at org.eclipse.emf.codegen.ecore.genmodel.presentation.GenModelActionBarContributor$14.execute(GenModelActionBarContributor.java:295)
	at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:100)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1714)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:112)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)

a) The warning should have a non-empty short message description

b) The warning should be an error

c) The error should also appear as a PopUp Dialog alerting the user interactively to the failure of the interactive generate model command.

This problem can easily occur through over-enthusiastic pruning of dead classes
from a model. If the Error Log is not visible, the only clue that Generate Model
is failing is the rather quicker execution of the progress pop up. If that is missed, then the generated code just obstinately refuses to respond to further
model changes!