Imported Java

Question

1) I am currently using 9iAS version 9.0.2.2.0 (Forms version (9.0.2.11.0). Will this version reuse a single JVM or create one for every user? A transition is mentioned in a reply to a post titled "Java Importer and VJM" from Jul 29, 2003 3:04 AM, but it is not clear which release starts the new configuration.
Also,...
2) I am trying to implement a form with imported Java. I get an exception. I have tried the ORA_JAVA exception and error handling as indicated in the Forms Developer help (importing java.lang.exception) but it does not help. Stepping through the code I see that the generated JNI.GET_CLASS call fails for both my custom class and Exception_. Does this mean the JVM cannot be created? In my default.env file I have added my jar file to the classpath and the path already contained the jre/bin/classic directory. I saw a post about conflicts between the Forms and Reports classpath but I have not called reports when I run into this problem.

Answer 1

Frank,
Thank you for the information on JVM instances. Regarding item 2):
My class is in a jar file and the jar file location is in the classpath that is defined by default.env (server has been restarted). My jar is self signed. Could that have anything to do with the problem?
I also have a correction. My custom class fails on the JNI.GET_CLASS call and raises an ORA_JAVA.EXCEPTION_THROWN exception. While handling this the imported Exception_.getMessage call fails at the JNI.CALL_STRING_METHOD with a ORA-105100 error. Since a few JNI calls succeed on Exception_ I assume that the JVM is being created. I wonder if there is some server side logging that might give me more information.