You might find something useful here: http://forum.java.sun.com/thread.jsp?forum=27&thread=159968&tstart=0&trange=15
Looks like it might be a JVM thread safety issue. There was one with zip/jar files that only just got fixed (as of 1.4.2 -- been there since 1.3.1 at least). Chris -----Original Message----- From: Schweigl, Johann [mailto:[EMAIL PROTECTED] Sent: Wed 8/6/2003 07:35 To: '[EMAIL PROTECTED]' Cc: Subject: Problem with Xerces and threads - any ideas? Hi all, I got stuck in a problem I simply can't handle anymore - maybe someone has experienced a similar situation. I have a java program (tried with VMs from 1.4.2 to 1.3.1 on WinXP) that uses several threads. One reader thread parses documents and puts the DOM documents on a queue from where they are fetched from several writer threads, are serialized and sent to somewhere via http. Queue size is limited, filling and draining the queue is controlled via Thread.wait() and Thread.notify(). Parser used is Xerces-J 2.4.0 and, later, 2.5.0. What happens is that the JVM crashes at some random point in time. Sometimes only the JVM, sometimes Win XP as a whole. The only case where I got some useful data was when I ran the whole thing in the Eclipse debugger, which gave me the dump at the end of the message. I don't know if Xerces really is the problem here, but I have no clue, so I'm trying to collect input from everywhere. The documents in the queue are not accessed concurrently, the put and get methods of the queue are synchronized and defered node expansion is turned off. No runtime exception occurs. Thats all what I've got, does it ring anyone's bell? Best regards, Johann Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x809D506 Function=JVM_FindSignal+0x1087A Library=C:\Programme\Java\j2re1.4.2\bin\client\jvm.dll Current Java thread: at org.apache.xerces.dom.ElementImpl.synchronizeData(Unknown Source) at org.apache.xerces.dom.ElementImpl.getNodeName(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TElementNodeWriter.w rite(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNodeList(Unknow n Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeChildNodes(Unkn own Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.access$1200(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TElementNodeWriter.w rite(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNodeList(Unknow n Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeChildNodes(Unkn own Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.access$1200(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TElementNodeWriter.w rite(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNodeList(Unknow n Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeChildNodes(Unkn own Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.access$1200(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TElementNodeWriter.w rite(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNodeList(Unknow n Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeChildNodes(Unkn own Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.access$1200(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TElementNodeWriter.w rite(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNodeList(Unknow n Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeChildNodes(Unkn own Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.access$1200(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter$TDocumentNodeWriter. write(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.writeNode(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter.write(Unknown Source) - locked <0x110f0b68> (a com.softwareag.tamino.db.api.objectModel.dom.TDOMWriter) at com.softwareag.tamino.db.api.objectModel.dom.TDOMAdapter.writeTo(Unknown Source) at com.softwareag.tamino.db.api.objectModel.dom.TDOMAdapter.writeTo(Unknown Source) at com.softwareag.tamino.db.api.objectModel.TXMLObject.writeTo(Unknown Source) at com.softwareag.tamino.db.api.io.TOutputStreamWriter.write(Unknown Source) at com.softwareag.tamino.db.api.invocation.http.THTTPInvocationRequestWriter.wr ite(Unknown Source) at com.softwareag.tamino.db.api.invocation.TInvocationRequestWriter$TCommandIte mPairWriter.invokeRequestWriter(Unknown Source) at com.softwareag.tamino.db.api.invocation.TInvocationRequestWriter$TCommandIte mPairWriter.write(Unknown Source) at com.softwareag.tamino.db.api.invocation.TInvocationRequestWriter.write(Unkno wn Source) at com.softwareag.tamino.db.api.invocation.http.THTTPInvocation.doInvoke(Unknow n Source) at com.softwareag.tamino.db.api.invocation.TAbstractInvocation.doTemplateInvoke (Unknown Source) - locked <0x127adc90> (a com.softwareag.tamino.db.api.invocation.http.THTTPInvocation) at com.softwareag.tamino.db.api.invocation.TAbstractInvocation.invoke(Unknown Source) at com.softwareag.tamino.db.api.accessor.TAbstractAccessor.invoke(Unknown Source) at com.softwareag.tamino.db.api.accessor.TStreamAccessorImpl.process(Unknown Source) - locked <0x127af1f0> (a com.softwareag.tamino.db.api.accessor.TStreamAccessorImpl) at com.softwareag.tamino.db.api.accessor.TStreamAccessorImpl.insert(Unknown Source) - locked <0x127af1f0> (a com.softwareag.tamino.db.api.accessor.TStreamAccessorImpl) at com.softwareag.tamino.db.api.accessor.TXMLObjectAccessorImpl.insert(Unknown Source) - locked <0x127ae880> (a com.softwareag.tamino.db.api.accessor.TXMLObjectAccessorImpl) at Writer.run(Writer.java:48) Dynamic libraries: 0x00400000 - 0x00407000 C:\Programme\Java\j2re1.4.2\bin\javaw.exe 0x77F40000 - 0x77FEE000 C:\WINDOWS\System32\ntdll.dll 0x77E40000 - 0x77F38000 C:\WINDOWS\system32\kernel32.dll 0x77DA0000 - 0x77E3C000 C:\WINDOWS\system32\ADVAPI32.dll 0x78000000 - 0x78086000 C:\WINDOWS\system32\RPCRT4.dll 0x77D10000 - 0x77D9C000 C:\WINDOWS\system32\USER32.dll 0x77C40000 - 0x77C80000 C:\WINDOWS\system32\GDI32.dll 0x77BE0000 - 0x77C33000 C:\WINDOWS\system32\MSVCRT.dll 0x08000000 - 0x08136000 C:\Programme\Java\j2re1.4.2\bin\client\jvm.dll 0x76AF0000 - 0x76B1D000 C:\WINDOWS\System32\WINMM.dll 0x6BD00000 - 0x6BD0D000 C:\WINDOWS\System32\SYNCOR11.DLL 0x10000000 - 0x10007000 C:\Programme\Java\j2re1.4.2\bin\hpi.dll 0x00820000 - 0x0082E000 C:\Programme\Java\j2re1.4.2\bin\verify.dll 0x00830000 - 0x00848000 C:\Programme\Java\j2re1.4.2\bin\java.dll 0x00850000 - 0x0085D000 C:\Programme\Java\j2re1.4.2\bin\zip.dll 0x00910000 - 0x0092C000 C:\Programme\Java\j2re1.4.2\bin\jdwp.dll 0x06D10000 - 0x06D15000 C:\Programme\Java\j2re1.4.2\bin\dt_socket.dll 0x71A10000 - 0x71A25000 C:\WINDOWS\System32\ws2_32.dll 0x71A00000 - 0x71A08000 C:\WINDOWS\System32\WS2HELP.dll 0x719B0000 - 0x719EC000 C:\WINDOWS\System32\mswsock.dll 0x76EE0000 - 0x76F05000 C:\WINDOWS\System32\DNSAPI.dll 0x76F70000 - 0x76F77000 C:\WINDOWS\System32\winrnr.dll 0x76F20000 - 0x76F4D000 C:\WINDOWS\system32\WLDAP32.dll 0x76F80000 - 0x76F85000 C:\WINDOWS\System32\rasadhlp.dll 0x719F0000 - 0x719F8000 C:\WINDOWS\System32\wshtcpip.dll 0x07180000 - 0x0718F000 C:\Programme\Java\j2re1.4.2\bin\net.dll 0x76C50000 - 0x76C72000 C:\WINDOWS\system32\imagehlp.dll 0x6DA00000 - 0x6DA7D000 C:\WINDOWS\system32\DBGHELP.dll 0x77BD0000 - 0x77BD7000 C:\WINDOWS\system32\VERSION.dll 0x76BB0000 - 0x76BBB000 C:\WINDOWS\System32\PSAPI.DLL Heap at VM Abort: Heap def new generation total 17280K, used 13173K [0x10010000, 0x112d0000, 0x12770000) eden space 15360K, 78% used [0x10010000, 0x10bc9548, 0x10f10000) from space 1920K, 60% used [0x110f0000, 0x11214080, 0x112d0000) to space 1920K, 0% used [0x10f10000, 0x10f10000, 0x110f0000) tenured generation total 229976K, used 61855K [0x12770000, 0x20806000, 0x30010000) the space 229976K, 26% used [0x12770000, 0x163d7d68, 0x163d7e00, 0x20806000) compacting perm gen total 4096K, used 3121K [0x30010000, 0x30410000, 0x34010000) the space 4096K, 76% used [0x30010000, 0x3031c410, 0x3031c600, 0x30410000) Local Time = Tue Aug 05 21:55:32 2003 Elapsed Time = 16091 # # HotSpot Virtual Machine Error : EXCEPTION_ACCESS_VIOLATION # Error ID : 4F530E43505002EF # Please report this error at # http://java.sun.com/cgi-bin/bugreport.cgi # # Java VM: Java HotSpot(TM) Client VM (1.4.2-b28 mixed mode) # # An error report file has been saved as hs_err_pid908.log. # Please refer to the file for further information. # --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
<<winmail.dat>>
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
