java.lang.SecurityException: sealing violation
user455599, you have encountered a common classloading exception. The following are a few ideas and suggestions of mine.
This "sealing violation" happens in the following situation. You have a "sealed" java package in a jar; for example, if the manifest of the jar contains a main attribute "Sealed : true". You also have some classes of the same package in another jar. If a classloader loads first a class of that package from the sealed jar and then attempts to load another class of the same package from the other jar, a "sealing violation" will occur since the package is sealed. If it happens the other way around, a "sealing violatin" still occurs since a package can not be sealed from a different jar.
at com.evermind[Oracle Application Server Containers for J2EE 10g(22.214.171.124.0)].naming.ContextClassLoader.loadLocalClassFirst(ContextClassLoader.java:153)
at com.evermind[Oracle Application Server Containers for J2EE 10g(126.96.36.199.0)].naming.ContextClassLoader.loadClass(ContextClassLoader.java:132)