Product Version: NetBeans IDE 7.3 (Build 201302132200)
Java: 1.7.0_21; Java HotSpot(TM) 64-Bit Server VM 23.21-b01
Runtime: Java(TM) SE Runtime Environment 1.7.0_21-b11
System: Windows 7 version 6.1 running on amd64; Cp1252; en_CA (nb)
User directory: C:\Users\Gili\AppData\Roaming\NetBeans\7.3
Cache directory: C:\Users\Gili\AppData\Local\NetBeans\Cache\7.3

When Rename Method is used against a method and that method is line-wrapped in the source-code, the operation ends up corrupting the source-code.

Repro steps:

1. Given:

public class Testcase
{
	public Testcase getSelf()
	{
		return this;
	}

	public static void main(String[] args)
	{
		Testcase testcase = new Testcase();
		testcase.getSelf().getSelf().getSelf().getSelf().getSelf().getSelf().getSelf().getSelf().
			getSelf().getSelf().getSelf().getSelf().getSelf().getSelf();
	}
}

2. Place caret on getSelf(), hit CTRL+R and rename the method to getSelf2().
3. The output will be:

public class Testcase
{
	public Testcase getSelf2()
	{
		return this;
	}

	public static void main(String[] args)
	{
		Testcase testcase = new Testcase();
		testcase.getSelf2().getSelf2().getSelf2().getSelf2().getSelf2().getSelf2().getSelf2().getSelf2().getSelf2Self().getSelf2().getSelf2().getSelf2().getSelf2().getSelf2();
	}
}

4. Notice the output contains two bugs:

a. The line-wrapped reference gets renamed to getSelf2Self() instead of getSelf2()
b. The line wrapping is removed and the method invocation now shows up on a single line.