Bug 73347 NPE in AdvancedQuickAssistProcessor.getInverseConditionProposals
I20040901 + plug-in export, J9 JXE Got this in log several times a day. No steps. !ENTRY org.eclipse.jdt.ui 4 10001 Sep 06, 2004 18:46:20.502 !MESSAGE Internal Error !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.ui.text.correction.AdvancedQuickAssistProcessor.getInverseConditionProposals(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.AdvancedQuickAssistProcessor.hasAssists(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.hasAssists(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.calculateLightBulb(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.doSelectionChanged(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater.access$0(Unknown Source) at org.eclipse.jdt.internal.ui.text.correction.QuickAssistLightBulbUpdater$1.selectionChanged(Unknown Source) at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup.calculateASTandInform(Unknown Source) at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run(Unknown Source) at org.eclipse.core.internal.jobs.Worker.run(Unknown Source)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/AdvancedQuickAssistProcessor.java
newCondition.setLeftOperand(condition);
				newCondition.setRightOperand(ifCondition);
				condition = newCondition;
			}
		}
		
		IfStatement newIf = ast.newIfStatement();
		newIf.setExpression(condition);
		newIf.setThenStatement(thenStatement);
		
		ListRewrite listRewriter = null;
		for (Iterator I = coveredNodes.iterator(); I.hasNext();) {
			IfStatement ifStatement = (IfStatement) I.next();
			if (listRewriter == null) {
				Block sourceBlock = (Block) ifStatement.getParent();
				
				listRewriter = rewrite.getListRewrite(sourceBlock,
						(ChildListPropertyDescriptor) ifStatement.getLocationInParent());
			}
			if (newIf != null) {
				listRewriter.replace(ifStatement, newIf, null);
				newIf = null;
			} else {
				listRewriter.remove(ifStatement, null);
			}
		}
		
		String label = CorrectionMessages.getString("AdvancedQuickAssistProcessor.joinWithOr.description"); 
		Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
		ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(),