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Problem running Java program that calls methods in a Windows C++ DLL via a JNI wrapper.......


Greetings,

Am having a problem running an Eclipse Java program in the IDE on Windows XP that calls Windows C++ methods in a Windows DLL via JNI. The JNI wrapper was developed using the SUN SDK. When we run the java program using the SUN JVM it all works well; when we attempt this using the JVM available with IBM Websphere 6.0.2.5 we have the following problem when we attempted to make the first C++ method call:

JVMDG217: Dump Handler is Processing Signal 11 - Please Wait.
JVMDG303: JVM Requesting Java core file
JVMDG304: Java core file written to C:\EclipseWorkspace\AppName\javacore.20060626.095514.392.txt

and in the dump file found the following:

NULL           ------------------------------------------------------------------------
0SECTION       TITLE subcomponent dump routine
NULL           ===============================
1TISIGINFO     signal 11 received
1TIDATETIME    Date:                 2006/06/26 at 09:55:32
1TIFILENAME    Javacore filename:    D:\EclipseWorkspace\SQLParser\javacore.20060626.095532.392.txt
NULL           ------------------------------------------------------------------------
0SECTION       XHPI subcomponent dump routine
NULL           ==============================
1XHEXCPCODE    Exception code: C0000005 Access Violation
1XHEXCPADDRESS Fault address:  1001F1C3 01:0001E1C3
1XHEXCPMODULE  Fault module:   D:\IBM\WebSphere\AppServer\_jvm\jre\bin\classic\jvm.dll
NULL          
1XHREGISTERS   Registers:
2XHREGISTER      EAX:00000000
2XHREGISTER      EBX:05E552D4
2XHREGISTER      ECX:0032AB18
2XHREGISTER      EDX:05E553A0
2XHREGISTER      ESI:002B1998
2XHREGISTER      EDI:00000000
2XHREGISTER      CS:EIP:001B:1001F1C3
2XHREGISTER      SS:ESP:0023:0006FC48  EBP:00000000
2XHREGISTER      DS:0023  ES:0023  FS:003B  GS:0000
NULL          
1XHFLAGS       Flags:00010246
NULL          
NULL           ------------------------------------------------------------------------
0SECTION       CI subcomponent dump routine
NULL           ============================
1CIJAVAVERSION J2RE 1.4.2 IBM Windows 32 build cn142ifx-20051115 (SR3 + 94164 + 97403 + 97482)
1CIRUNNINGAS   Running as a standalone JVM
1CICMDLINE     D:\IBM\WebSphere\AppServer\_jvm\bin\javaw.exe -classpath D:\EclipseWorkspace\SQLParser DSSqlParser.SqlParser
1CIJAVAHOMEDIR Java Home Dir:   D:\IBM\WebSphere\AppServer\_jvm\jre
1CIJAVADLLDIR  Java DLL Dir:    D:\IBM\WebSphere\AppServer\_jvm\jre\bin
1CISYSCP       Sys Classpath:   D:\IBM\WebSphere\AppServer\_jvm\jre\lib\core.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\graphics.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\security.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\server.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\xml.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\charsets.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmcertpathprovider.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjaasactivelm.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjaaslm.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjcefw.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjgssprovider.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjssefips.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjsseprovider.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmorb.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmorbapi.jar;D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmpkcs.jar
1CIUSERARGS    UserArgs:
2CIUSERARG               vfprintf 0x403000
2CIUSERARG               -Dinvokedviajava
2CIUSERARG               -Djava.class.path=D:\EclipseWorkspace\SQLParser
2CIUSERARG               vfprintf
NULL          
1CIJVMMI       JVM Monitoring Interface (JVMMI)
NULL           ------------------------
2CIJVMMIOFF    No events are enabled.
NULL          
NULL           ------------------------------------------------------------------------
0SECTION       DC subcomponent dump routine
NULL           ============================
1DCHEADEREYE   Header eye catcher  DCST
1DCHEADERLEN   Header length       24
1DCHEADERVER   Header version      1
1DCHEADERMOD   Header modification 0
2DCARRAYINFO     10 - index  9 signature S name  short[] factor 2
2DCARRAYINFO     11 - index 10 signature I name    int[] factor 4
2DCARRAYINFO     12 - index 11 signature J name   long[] factor 8
NULL           ------------------------------------------------------------------------
0SECTION       DG subcomponent dump routine
NULL           ============================
1DGTRCENABLED  Trace enabled: Yes
2DGTRCTYPE       Trace: Internal
2DGTRCBUFFERS    Buffer specification: 8k
2DGTRCBUFALLOC   Buffers allocated: 0
2DGTRCBUFUSED    Buffers in use:    0
1DGJDUMPBUFF   Javadump buffer size (allocated): 2621440
NULL           ------------------------------------------------------------------------
0SECTION       ST subcomponent dump routine
NULL           ============================
1STGCMODES     Resettable GC: No
1STGCMODES     Concurrent GC: No
1STCURHBASE    Current Heap Base: 0x101801FC
1STCURHLIM     Current Heap Limit: 0x1057FBFC
1STMWHBASE     Middleware Heap Base: 0x101801FC
1STMWHLIM      Middleware Heap Limit: 0x1057FBFC
1STGCHELPERS   Number of GC Helper Threads: 0
1STJVMOPTS     -Xconcurrentlevel: 0
1STJVMOPTS     -Xconcurrentbackground: 0
1STGCCTR       GC Counter: 0
1STAFCTR       AF Counter: 0
1STHEAPFREE    Bytes of Heap Space Free: 2f2e40
1STHEAPALLOC   Bytes of Heap Space Allocated: 3ffa00
1STSMBASE      SM Base: 0x0
1STSMEND       SM End: 0x0
1STPAMSTART    PAM Start: 0x0
1STPAMEND      PAM End: 0x0
1STCOMACTION   Compact Action: 0
NULL           ------------------------------------------------------------------------
0SECTION       XE subcomponent dump routine
NULL           ============================
1XETHRESHOLD   MMI threshold for java methods is set to 2000
1XEJITINIT     JIT is initialized
1XEJVMPIOFF    JVMPI is not activated
1XEJNITHRESH   MMI threshold for JNI methods is set to 0
1XETRCHIS      Trace history length is set to 4
1XEJITDUMP     JIT dump routine is not yet implemented.
NULL           ------------------------------------------------------------------------
0SECTION       LK subcomponent dump routine
NULL           ============================
NULL          
1LKPOOLINFO    Monitor pool info:
2LKPOOLINIT      Initial monitor count: 32
2LKPOOLEXPNUM    Minimum number of free monitors before expansion: 5
2LKPOOLEXPBY     Pool will next be expanded by: 16
2LKPOOLTOTAL     Current total number of monitors: 32
2LKPOOLFREE      Current number of free monitors: 28
NULL          
1LKMONPOOLDUMP Monitor Pool Dump (flat & inflated object-monitors):
2LKMONINUSE      sys_mon_t:0x0026FD30 infl_mon_t: 0x002B227C:
3LKMONOBJECT       java.lang.ref.Reference$Lock@10200598/102005A0: <unowned>
3LKNOTIFYQ            Waiting to be notified:
3LKWAITNOTIFY            "Reference Handler" (0x1D6FAA0)
2LKMONINUSE      sys_mon_t:0x0026FDC0 infl_mon_t: 0x002B22D4:
3LKMONOBJECT       java.lang.ref.ReferenceQueue$Lock@102002D0/102002D8: <unowned>
3LKNOTIFYQ            Waiting to be notified:
3LKWAITNOTIFY            "Finalizer" (0x1DF35E8)
NULL          
1LKREGMONDUMP  JVM System Monitor Dump (registered monitors):
2LKREGMON          JITC PIC Lock (0x01EB1448): <unowned>
2LKREGMON          JITC CHA lock (0x01E9B090): <unowned>
2LKREGMON          JITC MB UPDATE lock (0x026A0070): <unowned>
2LKREGMON          JITC Global_Compile lock (0x026A0020): <unowned>
2LKREGMON          Free Class Loader Cache Entry lock (0x002B4098): <unowned>
NULL          
1LKOBJMONDUMP  Java Object Monitor Dump (flat & inflated object-monitors):
2LKINFLATEDMON     java.lang.ref.ReferenceQueue$Lock@102002D0/102002D8
3LKINFLDETAILS         locknflags 80000400 Monitor inflated infl_mon 0x002B22D4
2LKINFLATEDMON     java.lang.ref.Reference$Lock@10200598/102005A0
3LKINFLDETAILS         locknflags 80000200 Monitor inflated infl_mon 0x002B227C
NULL           ------------------------------------------------------------------------
0SECTION       XM subcomponent dump routine
NULL           ============================
NULL            
1XMCURTHDINFO  Current Thread Details
NULL           ----------------------
3XMTHREADINFO      "main" (TID:0x101EB9B8, sys_thread_t:0x2B1B70, state:R, native ID:0xCBC) prio=5: pending=java.lang.NoClassDefFoundError
4XESTACKTRACE          at DSSqlParser.SqlParser.init(Native Method)
4XESTACKTRACE          at DSSqlParser.SqlParser.main(SqlParser.java:69)
1XMTHDINFO     All Thread Details
NULL           ------------------
NULL          
2XMFULLTHDDUMP Full thread dump Classic VM (J2RE 1.4.2 IBM Windows 32 build cn142ifx-20051115 (SR3 + 94164 + 97403 + 97482), native threads):
3XMTHREADINFO      "Finalizer" (TID:0x101EB8B0, sys_thread_t:0x1DF35E8, state:CW, native ID:0x4AC) prio=8
4XESTACKTRACE          at java.lang.Object.wait(Native Method)
4XESTACKTRACE          at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
4XESTACKTRACE          at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:160)
4XESTACKTRACE          at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:225)
3XMTHREADINFO      "Reference Handler" (TID:0x101EB908, sys_thread_t:0x1D6FAA0, state:CW, native ID:0xBB8) prio=10
4XESTACKTRACE          at java.lang.ref.Reference.process(Native Method)
4XESTACKTRACE          at java.lang.ref.Reference.access$300(Reference.java:50)
4XESTACKTRACE          at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:130)
3XMTHREADINFO      "Signal dispatcher" (TID:0x101EB960, sys_thread_t:0x1DE63C8, state:R, native ID:0xD84) prio=5
3XMTHREADINFO      "main" (TID:0x101EB9B8, sys_thread_t:0x2B1B70, state:R, native ID:0xCBC) prio=5: pending=java.lang.NoClassDefFoundError
4XESTACKTRACE          at DSSqlParser.SqlParser.init(Native Method)
4XESTACKTRACE          at DSSqlParser.SqlParser.main(SqlParser.java:69)
NULL           ------------------------------------------------------------------------
0SECTION       CL subcomponent dump routine
NULL           ============================
1CLCLASSPATH         Classpath Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\core.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\graphics.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\security.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\server.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\xml.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\charsets.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmcertpathprovider.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjaasactivelm.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjaaslm.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjcefw.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjgssprovider.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjssefips.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmjsseprovider.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmorb.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmorbapi.jar),Z(D:\IBM\WebSphere\AppServer\_jvm\jre\lib\ibmpkcs.jar)
1CLFLAGOLDJAVA       Oldjava mode false
1CLFLAGBOOTSTRP      Bootstrapping false
1CLFLAGVERBOSE       Verbose class dependencies false
1CLENUMVERIFY        Class verification VERIFY_REMOTE
1CLPNTRNAMECLLO      Namespace to classloader 0x00000000
1CLPNTRCLSEXT        Extension loader 0x101EB830
1CLPNTRSYSLOADR      System classloader 0x101EB7B0
1CLTEXTCLLOS         Classloader summaries
1CLTEXTCLLSS               12345678: 1=primordial,2=extension,3=shareable,4=middleware,5=system,6=trusted,7=application,8=delegating
2CLTEXTCLLOADER            -----ta- Loader sun/misc/Launcher$AppClassLoader(0x01EAC960), Shadow 0x101EB7B0, Parent sun/misc/Launcher$ExtClassLoader(0x101EB830)
3CLNMBRLOADEDCL                  Number of loaded classes 1
3CLNMBRCACHECLS                  Number of cached classes 259
3CLHEXDALLOCTIO                  Allocation used for loaded classes 1
3CLHEXDPCKGEOWN                  Package owner 0x101EB7B0
2CLTEXTCLLOADER            -xh-st-- Loader sun/misc/Launcher$ExtClassLoader(0x01EA20D0), Shadow 0x101EB830, Parent *none*(0x00000000)
3CLNMBRLOADEDCL                  Number of loaded classes 0
3CLNMBRCACHECLS                  Number of cached classes 0
3CLHEXDALLOCTIO                  Allocation used for loaded classes 3
3CLHEXDPCKGEOWN                  Package owner 0x101EB830
2CLTEXTCLLOADER            p-h-st-- Loader *System*(0x00361F20), Shadow 0x00000000
3CLNMBRLOADEDCL                  Number of loaded classes 306
3CLNMBRCACHECLS                  Number of cached classes 306
3CLHEXDALLOCTIO                  Allocation used for loaded classes 3
3CLHEXDPCKGEOWN                  Package owner 0x00000000
1CLTEXTCLLOD         ClassLoader loaded classes
2CLTEXTCLLOAD              Loader sun/misc/Launcher$AppClassLoader(0x01EAC960)
3CLTEXTCLASS                     DSSqlParser/SqlParser(0x101DF0E0)
2CLTEXTCLLOAD              Loader sun/misc/Launcher$ExtClassLoader(0x01EA20D0)
2CLTEXTCLLOAD              Loader *System*(0x00361F20)
3CLTEXTCLASS                     java/io/DataOutput(0x002DA068)
3CLTEXTCLASS                     sun/net/www/URLConnection(0x01E76898)
3CLTEXTCLASS                     com/ibm/jvm/io/FileOutputStream(0x002DC2D8)
3CLTEXTCLASS                     java/util/Hashtable$EmptyIterator(0x002D4758)
3CLTEXTCLASS                     java/lang/ClassLoader(0x002D29A8)
3CLTEXTCLASS                     java/lang/Comparable(0x002D0738)
NULL           ------------------------------------------------------------------------
0SECTION       Javadump End section
1DGJDUMP       Javadump Buffer Usage Information
NULL           =================================
2DGJDUMPALLOC  Javadump buffer size (allocated): 2621440
2DGJDUMPUSED   Javadump buffer size (used)     : 34558
NULL           ---------------------- END OF DUMP -------------------------------------

Any help is appreciated.

ADG13
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yuseungkim
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adgarcia13
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ASKER


Thanks Andy,

Do you know of any specific information on this issue? I did some research on the internet and it seems other people have run into related problems but not this specific one. I guess I am wondering if it has already been reported and there is some known workaround or patch. If I don't find something soon a PMR will be opened.

Thanks,

ADG13
Avatar of yuseungkim
yuseungkim
Did you analyze this Java Core dump with IBM Thread analyzer ?

Check following URL ( You will also find URL to download IBM ThreadAnalyzer tool which read java core dump and analyze it ):

http://www-1.ibm.com/support/docview.wss?rs=180&context=SSEQTP&dc=DB520&dc=D600&dc=DB530&dc=D700&dc=DB500&dc=DB540&dc=DB510&dc=DB550&q1=c%2b%2b+method+call&uid=swg21180862&loc=en_US&cs=utf-8&lang=en

Good Luck.

Andy K
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hoomanv
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try running with java -Xcheck:jni, it helps you find out native problems