Oracle12c Agent(12.1.0.2.0)monitoring databases on solaris sparc 5.9 (64bit)constantly generates cor

Hi All

A very Good Afternoon.

We are facing issues related to Oracle agents running on Oracle Solaris Solaris Sparc (64 bit)  SunOS 5.9 platform.

1) The Oracle agent is generating core dump file under <AGENT_HOME>/sysman/emd

2) There are also some Java related errors in hs_err_pid<<>>.log under the same directory <AGENT_HOME>/sysman/emd

Errors related to Java :

# A fatal error has been detected by the Java Runtime Environment:

#

# java.lang.OutOfMemoryError: requested 18446744073709551312 bytes for Arena::Amalloc. Out of swap space?

3) Another thing i noticed agent process initiates some zombies processes <<DEFUNCT>>, which even after you try to kill them won't die.