How to view metrics for JVM on the database side

I am using lob in a stored procedure. I understand that this uses the JVM.
I would like to know how to easily view the JVM metrics.
Thanks,
Charles Li

I am running a stored procedure that uses getXML. I would like to know how much memory its using up. I was told to increase the java pool, but it did not help with large query of getXML. What should I monitor for getXML?
Thanks.

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