Hi,

I'm trying to translate web application's classfile (bytecode) at
load-time. I heard that org.jboss.util.loading.Translator allows
changing the behavior of UCL and then implemented and attached the
simple translator to UCL. But, JBoss displays the following message.

Caused by: java.lang.SecurityException:
class "javax.activation.DataSource"'s signer information does not
match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(ClassLoader.java:599)
at java.lang.ClassLoader.defineClass(ClassLoader.java:532)
at org.jboss.mx.loading.RepositoryClassLoader.findClass(RepositoryClassLoader.java:591)
... 30 more

I think that the protection domain of the application causes the
error but, I don't understand detail. Can someone give me the good
solution?

Thanks in advance,