The following exception is thronw thrown if I generate a pdf PDF report with the Birt extension. java.lang.SecurityException: class "org.apache.batik.util.HaltingThread"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(Unknown Source) at java.lang.ClassLoader.preDefineClass(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) What is the Problem?

The following exception is thronw if I generate a pdf report with the Birt extension. java.lang.SecurityException: class "org.apache.batik.util.HaltingThread"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(Unknown Source) at java.lang.ClassLoader.preDefineClass(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) What is the Problem?