Bug 120389 [quick fix] replace conditional with if-else removes + from +=
Using Build I20051102-1600. I create a class [snip] package bla; class Bla { void bla() { boolean cond = true; int i = 42; i += ( cond ) ? 1 : 2; } } [snap] Now I move the cursor over the second cond and trigger the Quickfix 'Replace conditional with if-else'. This results in [snip] int i = 42; if (cond) i = 1; else i = 2; [snap] i.e. replaces the '+=' with '='. (Credit to Jordi Boehme for finding this.)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/AdvancedQuickAssistProcessor.java
return false;
		}
		IVariableBinding binding= (IVariableBinding) variableBinding;
		if (binding.isField()) {
			return false;
		}
		
		if (!isBoolean(coveringName)) {
			return false;
		}
		
		if (resultingCollections == null) {
			return true;
		}
		
		final MethodDeclaration method= ASTResolving.findParentMethodDeclaration(covering);
		SimpleName[] linkedNodes= LinkedNodeFinder.findByBinding(method, variableBinding);
		
		final ASTRewrite rewrite= ASTRewrite.create(ast);
		
		String label= CorrectionMessages.AdvancedQuickAssistProcessor_inverseBooleanVariable;
		Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
		final String KEY_NAME= "name"; 
		final LinkedCorrectionProposal proposal= new LinkedCorrectionProposal(label,
			context.getCompilationUnit(),
			rewrite,
			1,
			image);
		
		final String oldIdentifier= coveringName.getIdentifier();