Maxheapsize In jmap Output Does Not Match Xms Setting For OC4J Container. (Doc ID 1526500.1)

Last updated on FEBRUARY 15, 2017

Applies to:

Oracle Containers for J2EE - Version 10.1.2.3.0 and later
Information in this document applies to any platform.

Symptoms

Trying to monitor an OC4J instance memory usage in iAS 10.1.2.3 running JDK 1.4.2_14.
When running the command: 

for this OC4J instance, the maxheapsize shows 64MB while the -Xmx parameter is set to 512M.
The jmap tool doesn't show 512M as expected.

Cause

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