[news.eclipse.tools.jdt] How to 'copy' MethodDeclaration from one Compil

[Werner Janjic <werner.janjic@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hello!

I've got a problem in codeing a plugin. I've got a CompilationUnit 
created from Javacode in a file on the filesystem and can wonderfully 
traverse through it. Now I want to copy one method from this 
CompilationUnit to another CompilationUnit that I've got from the actual 
editor.

So I did - naively - the following:

[...]
MethodDeclaration orgMethod = methods[0];
((TypeDeclaration)editorCompUnit.types().get(0)).bodyDeclarations().add(orgMethod);
[...]

Unfortunately this returns an IllegalArgumentException and seeing the 
inner structure in the debugger I assume that this is due to the fact 
that orgMethod references its own AST and/or CPU and so the editor CPU 
can't handle that.

Now I'd like to know if there is a possibility to copy a method or type 
declaration from one CompilationUnit to another one, without haveing to 
code one million lines of code examining all of the original one and 
then storing it in the destination CPU. That seems pretty hard to me as 
I'm not so deep in AST/CPU programming. Is there some clone or copy 
option implemented?

Thank you in advance and I'd very much appreciate if you could provide 
me some code snippet with your answer. I've been trying it myself for 
days now and also searching the newsgroup and googleing didn't give me 
any idea.

Werner