Refactoring plugin for eclipse

I want to e开发者_运维知识库xtend the existing refactoring plugin for eclipse and want to know from where to start the work. Can somebody guide me by giving one example. For example : guide me by extending the move refactoring that is already implemented, when the code runs it will display that it is extended refactoring so that i will sure that my code is running.

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If you want to contribute or modify the existing refactoring support in Eclipse, I'd say a good point to start is the corresponding project page.

Java refactoring shoul be part of the JDT core, so have look here: http://www.eclipse.org/projects/project.php?id=eclipse.jdt.core