A NoClassDefFoundError error message is reported from a client after instrumenting the applicatio (4257813)

We are using WebLogic 8.1.6 on Solaris. We have successfully instrumented the WebLogic instance but when some T3 client code is run the transactions are not processed and the following error is thrown. This error is only visible from the client side and not the server.

java.lang.NoClassDefFoundError: com/sitraka/pas/agent/plugin/instrumentor/method/JdbcDriverInstrumentor$JdbcImplementation
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:480)