Bug 15726 moves field comments from one field to another [quick fix]
20020508 public class A { int field; //field comment A(int fred){ _fred= fred; } } you are offered to create field _fred but then it steals the comment: int field; private int _fred; //field comment
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/astrewrite/ASTRewritingStatementsTest.java
{ 
			SynchronizedStatement statement= (SynchronizedStatement) statements.get(0);
			ASTNode newExpression= ast.newSimpleName("obj");
			rewrite.markAsReplaced(statement.getExpression(), newExpression);
			
			Block newBody= ast.newBlock();
						
			Assignment assign= ast.newAssignment();
			assign.setLeftHandSide(ast.newSimpleName("x"));
			assign.setRightHandSide(ast.newNumberLiteral("1"));
			assign.setOperator(Assignment.Operator.ASSIGN);
			
			newBody.statements().add(ast.newExpressionStatement(assign));
			
			rewrite.markAsReplaced(statement.getBody(), newBody);
		}		
				
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public void foo() {\n");
		buf.append("        synchronized(obj) {\n");
		buf.append("            x = 1;\n");
		buf.append("        }\n");
		buf.append("    }\n");