I don't actually know if this is related but I find it odd that your
module is in a package owned by ArgoUML. You could have a class
conflict with an ArgoUML class in that same package.

Try refactoring to your own namespace

Something like org.macmas.ui etc...

Or is there some reason that you have chosen to share package name to
get access to package scope classes and methods? If that's the case
then please request a change to ArgoUML rather than share its
namespace.

Regards

Bob.



On 18/07/07, David Orejuela <[EMAIL PROTECTED]> wrote:
Hello,
I'm developing a plugin for ArgoUML (Macmas). My project runs fine with
Eclipse 3.2, but when I create the plugin jar file and I launch it with
build\argouml.bat, the following message appears:

java.lang.Security exception: class "org.argouml.ui.MacmasModule"'s signer
information does not match signer information of other classes in the same
package

I have read that it can be a duplicate jars problem, but I don't find
duplicate jars at build directory


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