Bug 338444 Unable to restart after upgrade
I upgraded from I20110114 to I20110225. After the upgrading, the workbench will not start. There are a large number of NPE's in the log. I will attach the whole log, but here are some example: Caused by: java.lang.NullPointerException at org.eclipse.ui.internal.Workbench.contains(Workbench.java:1870) at org.eclipse.ui.internal.Workbench.defineBindingTable(Workbench.java:1852) java.lang.NullPointerException at org.eclipse.ui.internal.Workbench.setReference(Workbench.java:1681) at org.eclipse.ui.internal.Workbench.access$19(Workbench.java:1677)
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/XMLModelReconciler.java
if (isChainedReference(featureName)) {
					ModelDelta delta = createMultiReferenceDelta(deltas, references, object,
							feature, innerElement);
					deltas.add(delta);
				} else if (isUnset(innerElement)) {
					ModelDelta delta = new EMFModelDeltaUnset(object, feature);
					deltas.add(delta);
				} else if (isDirectReference(featureName)) {
					ModelDelta delta = createDirectReferenceDelta(deltas, references, object,
							feature, innerElement);
					deltas.add(delta);
				} else if (isIndirectReference(featureName)) {
					ModelDelta delta = createIndirectReferenceDelta(references, object, feature,
							innerElement);
					deltas.add(delta);
				} else if (isUnorderedChainedAttribute(featureName)) {
					ModelDelta delta = createUnorderedChainedAttributeDelta(object, feature,
							innerElement, featureName);
					deltas.add(delta);
				} else if (isStringToStringMap(featureName)) {
					ModelDelta delta = createMapDelta(object, innerElement, feature);
					deltas.add(delta);
				} else {
					ModelDelta delta = createAttributeDelta(object, feature, innerElement,
							featureName);
					deltas.add(delta);
				}
			}
		}
	}