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 true;
		}
		AST ast = ifStatement.getAST();
		ASTRewrite rewrite = ASTRewrite.create(ast);
		
		Expression[] newOperands= { null, null };
		breakInfixOperationAtOperation(rewrite, topInfixExpression, orOperator, offset, true, newOperands);
		
		Expression leftCondition= newOperands[0];
		Expression rightCondition= newOperands[1];
		
		
		IfStatement firstIf = ast.newIfStatement();
		firstIf.setExpression(leftCondition);
		firstIf.setThenStatement((Statement) rewrite.createCopyTarget(ifStatement.getThenStatement()));
		
		IfStatement secondIf = ast.newIfStatement();
		secondIf.setExpression(rightCondition);
		secondIf.setThenStatement((Statement) rewrite.createCopyTarget(ifStatement.getThenStatement()));
		
		Block sourceBlock = (Block) ifStatement.getParent();
		int insertIndex = sourceBlock.statements().indexOf(ifStatement);
		ListRewrite listRewriter = rewrite.getListRewrite(sourceBlock,
			(ChildListPropertyDescriptor) statement.getLocationInParent());
		listRewriter.replace(ifStatement, firstIf, null);
		listRewriter.insertAt(secondIf, insertIndex + 1, null);
		
		String label = CorrectionMessages.AdvancedQuickAssistProcessor_splitOrCondition_description;
		Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
		ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(),