Is JVM shared by Forms (9i) runtime process?

Question

Hi,
I am currently testing the Forms 9i for our future project and would like to understand how good is Java/Forms_Runtime interoperability.
If a form invokes Java code (imported by the Importer), does the Forms Runtime Process share a JVM or it always creates a new instance? The documentation says that a new instance of JVM is always created. I developed a small test Java class, imported it with the Importer, invoke its method (a method runs about 30 s.) from a form's trigger and deployed the form. I run 2 simultaneous clients, each client form calls the Java method on the server. I can see 2 "ifweb90" processes but it looks like they share the same JVM. At least, a number of java processes was not increased on the server. Could it be true (with Forms 9i)?

Answer 1

Frank,
thanks a lot for your reply.
So, it looks like the Forms Runtime Process (ifweb90.exe) instanciates the Oracle own JVM (so called virtual JVM) for every session (with imported Java). And each mini-JVM shares somehow a general JVM (java.exe where the OC4J is running). Now the question is - how can I specify some initial parameters (i.e. memory size)for this mini-JVM? My java method does a memory intensive operation and as a result, its execution fails.