Bug 308629 [Compatibility] NPE thrown when restarting Eclipse
It's trying to add bindings to the application and failing. java.lang.NullPointerException at org.eclipse.emf.common.util.AbstractEList.getNonDuplicates(AbstractEList.java:1167) at org.eclipse.emf.common.util.AbstractEList.addAll(AbstractEList.java:372) at org.eclipse.e4.ui.model.application.impl.ApplicationImpl.eSet(ApplicationImpl.java:417) at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSet(BasicEObjectImpl.java:1081) at org.eclipse.e4.workbench.ui.internal.EMFModelDeltaSet.apply(EMFModelDeltaSet.java:31) at org.eclipse.e4.workbench.ui.internal.ModelReconcilingService.applyDeltas(ModelReconcilingService.java:54) at org.eclipse.e4.workbench.ui.internal.ModelReconcilingService.applyDeltas(ModelReconcilingService.java:36) at org.eclipse.e4.workbench.ui.internal.ResourceHandler.loadMostRecentModel(ResourceHandler.java:173) at org.eclipse.e4.ui.workbench.swt.internal.E4Application.loadApplicationModel(E4Application.java:194) at org.eclipse.e4.ui.workbench.swt.internal.E4Application.createE4Workbench(E4Application.java:129)
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/internal/XMLModelReconciler.java
break;
				}
			}
			if (!bindingTablesChanged) {
				return reference.eContainer();
			}
		}
		if (reference instanceof MHandler) {
			EMap<EObject, EList<FeatureChange>> objectChanges = changeDescription
					.getObjectChanges();
			boolean handlersChanged = false;
			for (Entry<EObject, EList<FeatureChange>> entry : objectChanges.entrySet()) {
				EObject key = entry.getKey();
				if (key instanceof MHandlerContainer) {
					for (FeatureChange change : entry.getValue()) {
						if (change.getFeatureName().equals(HANDLERCONTAINER_HANDLERS_ATTNAME)) {
							List<?> commands = (List<?>) change.getValue();
							for (Object command : commands) {
								if (command == reference) {
									return key;
								}
							}
							handlersChanged = true;
							break;
						}
					}
				}
			}
			if (!handlersChanged) {
				return reference.eContainer();