How to refactor constants to enums in Eclipse?

Question

How do I refactor Java constants to enums with eclipse?

I found no built-in functionality in eclipse: http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.jdt

Answer 1

Refactoring never changes the "external behavior"!

For example:

public enum Test {
    NAME1("abc");

    Test(String name) {}

    public static final String _NAME1="abc";
    public static void main(String[] args) {
        String k = Test._NAME1;
        String m = Test.NAME1;
    }
}

If you refactor _NAME1 to NAME1 (enum) ,the code crashes on instantiation of m. The refactoring would never be successful!