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
String label = CorrectionMessages.AdvancedQuickAssistProcessor_addParethesis_description;
		Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
		ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(),
				rewrite, 1, image);
		resultingCollections.add(proposal);
		return true;
	}
	private static ArrayList getFullyCoveredNodes(IInvocationContext context, ASTNode coveringNode) {
		final ArrayList coveredNodes = new ArrayList();
		final int selectionBegin = context.getSelectionOffset();
		final int selectionEnd = selectionBegin + context.getSelectionLength();
		coveringNode.accept(new GenericVisitor() {
			protected boolean visitNode(ASTNode node) {
				int nodeStart= node.getStartPosition();
				int nodeEnd= nodeStart + node.getLength();
				
				if (nodeEnd < selectionBegin || selectionEnd < nodeStart) {
					return false;
				}
				
				if (isCovered(node)) {
					ASTNode parent = node.getParent();
					if ((parent == null) || !isCovered(parent)) {
						coveredNodes.add(node);
						return false;
					}
				}
				
				return true;