I have a customer that is receiving a Java dump several times per day on their Test system but does not occur on the Production system. I know nothing about Java of the JDM. I can submit any part or all of the dump, but not sure what you would need. I am including the TITLE, GPINFO and ENVINO portions.  Any assistance on helping with this would be greatly appreciated.  :  NULL ------------------------------------------------------------------------ 0SECTION TITLE subcomponent dump routine NULL =============================== 1TISIGINFO Dump Event "gpf" (00002000) received 1TIDATETIME Date: 2010/09/15 at 05:37:30 1TIFILENAME Javacore filename: /a23tstlin/javacore.20100915.053719.61.0003.txt NULL ------------------------------------------------------------------------ 0SECTION GPINFO subcomponent dump routine NULL ================================ 2XHOSLEVEL OS Level : OS/400 V5R4M0 2XHCPUS Processors - 3XHCPUARCH Architecture : ppc 3XHNUMCPUS How Many : 4 NULL 1XHEXCPCODE J9Generic_Signal_Number: 00000004 1XHEXCPCODE Signal_Number: 0000000B 1XHEXCPCODE Error_Value: 00000000 1XHEXCPCODE Signal_Code: 00000033 1XHEXCPCODE Handler1: F019F4D0 1XHEXCPCODE Handler2: F0199E64 NULL 1XHEXCPMODULE Module: /QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/bin/libdt_socket.a 1XHEXCPMODULE Module_base_address: D0E3B000 NULL ------------- NULL ------------------------------------------------------------------------ 0SECTION ENVINFO subcomponent dump routine NULL ================================= 1CIJAVAVERSION J2RE 5.0 IBM J9 2.3 OS/400 ppc-32 build j9vmap3223sr11-20091106 1CIVMVERSION VM build 20091103_45935_bHdSMr 1CIJITVERSION JIT enabled - 20091016_1845_r8 1CIRUNNINGAS Running as a standalone JVM 1CICMDLINE java com.ordirope.als.svi.SBARun -n A23TSTSRV -a 3231 1CIJAVAHOMEDIR Java Home Dir: /QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre 1CIJAVADLLDIR Java DLL Dir: /QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/bin 1CISYSCP Sys Classpath: /QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/vm.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/core.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/charsets.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/graphics.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/security.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmpkcs.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmorb.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmcfw.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmorbapi.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmjcefw.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmjgssprovider.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmjsseprovider2.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmjaaslm.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/ibmcertpathprovider.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/server.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/jre/lib/xml.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/IBMmisc.jar;/QOpenSys/QIBM/ProdData/JavaVM/jdk50/32bit/lib/IBMi5OSJSSE.jar; -------------

Software/Hardware used:
iSeries, Java, OS V5R4M5