I think that's better.  

Btw, in code like this:

> 
> To do that I used the following code snippet (patch attached):
> 
>               if( CLASS_IS_INTERFACE( clazz ) ) {
>                 Hjava_lang_Class* objClazz = (*env)->GetObjectClass(env, obj);
>                 errorInfo info;
>                 Method* realmeth;
>                 if( ! instanceof( clazz, objClazz ) ) {
>                   SignalError("java.lang.IllegalArgumentException", "object is not 
>an instance of declaring class");

you can use postExceptionMessage() instead of SignalError like this:

                    postExceptionMessage(
                        &info, 
                        JAVA_LANG(IllegalArgumentException),
                        /* or something like that */
                        "class `%s' does not implement interface `%s'",
                        CLASS_CNAME(objClazz), CLASS_CNAME(clazz)
                    );
                    throwError(&info);

instead.                

        - Godmar

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