ASAP: Serial Versioning and the Microsoft Virtual Machine

Hi,
I'm writing an applet and a server that communicate via sockets using Java's serialization interface. The whole thing works fine unless I use IE (which uses Microsofts virtual machine). In the case I get an InvalidClassException with respect to my serialVersionUID. The error says that there is a versioning problem between a class calles "LHands;" which I'm guessing corresponds to my class called "Hands.class", however hardcoding the version ID in "Hands.class" doesn't fix it. My guess is that the applet is serializing the data using the MVM and the server is using Sun VM and is causing the versioning problem. Has anybody encountered anything like this before? I'm stumped, I've already lost three days on this.
Thanks in advanced,
Paul

in case anyones interested I figured it out. Do not try to serialize an array of objects if your in the the situation I described above. Its a lot of headache. Use Vectors instead

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# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0351fe3b, pid=1664, tid=3832
# JRE version: 6.0_20-b02
# Java VM: Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [zkemsdk.dll+0xfe3b]
# If you would like to submit a bug report, please visit:
# http://www.java.net/external?url=http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
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--------------- T H R E A D ---------------
Current thread (0x003a9000): JavaThread "main" [_thread_in_native, id=3832, stack(0x008c0000,0x00910000)]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000106
Registers:
EAX=0x0090f7c4, EBX=0x00000001, ECX=0x00000000, EDX=0x00000001
ESP=0x0090f7b4, EBP=0x0090f848, ESI=0x00000096, EDI=0x003a9000
EIP=0x0351fe3b, EFLAGS=0x00010216
Top of Stack: (sp=0x0090f7b4)
0x0090f7b4: 00000000 0090f930 000003fc 00000103
0x0090f7c4: 0090f800 6d9532d0 373e92a0 00912ec5
0x0090f7d4: 00000401 0090f7d8 369860d1 0090f800
0x0090f7e4: 37390050 00000000 37390f90 00000000
0x0090f7f4: 0090f800 0090f930 003a9000 0090f830
0x0090f804: 10008fd8 0090f840 0090f930 00000008
0x0090f814: 0090f88c 0090fa28 0090f8f4 0090f848
0x0090f824: eb53f637 0351ffdc 00000096 00000003
Instructions: (pc=0x0351fe3b)
0x0351fe2b: 0f 53 50 8d 44 24 18 50 e8 58 7c 00 00 83 c4 0c
0x0351fe3b: 8b 4e 70 51 8b 0e 83 c3 04 53 6a 64 8d 54 24 18
Stack: [0x008c0000,0x00910000], sp=0x0090f7b4, free space=13d0090f2e8k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [zkemsdk.dll+0xfe3b]
C [jna5972695927945545932.tmp+0x9182]
C [jna5972695927945545932.tmp+0x2161]
C [jna5972695927945545932.tmp+0x2849]
j com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+90
j com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+194
j com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+344
j $Proxy0.Z_Beep(J)Z+19
j com.rfarrays.bhabs.fingerPrint.main([Ljava/lang/String;)V+84
v ~StubRoutines::call_stub
V [jvm.dll+0xf049c]
V [jvm.dll+0x17fcf1]
V [jvm.dll+0xf051d]
V [jvm.dll+0xf9bc5]
V [jvm.dll+0x10181d]
C [javaw.exe+0x2155]
C [javaw.exe+0x8614]
C [kernel32.dll+0xb729]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.sun.jna.Function.invokeInt(I[Ljava/lang/Object;)I+0
j com.sun.jna.Function.invoke([Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;+90
j com.sun.jna.Function.invoke(Ljava/lang/Class;[Ljava/lang/Object;Ljava/util/Map;)Ljava/lang/Object;+194
j com.sun.jna.Library$Handler.invoke(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;+344
j $Proxy0.Z_Beep(J)Z+19
j com.rfarrays.bhabs.fingerPrint.main([Ljava/lang/String;)V+84
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x02b10c00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=1976, stack(0x02dc0000,0x02e10000)]
0x02b0a400 JavaThread "CompilerThread0" daemon [_thread_blocked, id=1280, stack(0x02d70000,0x02dc0000)]
0x02b08c00 JavaThread "Attach Listener" daemon [_thread_blocked, id=1984, stack(0x02d20000,0x02d70000)]
0x02b07800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=2160, stack(0x02cd0000,0x02d20000)]
0x02b02400 JavaThread "Finalizer" daemon [_thread_blocked, id=2052, stack(0x02c80000,0x02cd0000)]
0x02afd800 JavaThread "Reference Handler" daemon [_thread_blocked, id=752, stack(0x02c30000,0x02c80000)]
=>0x003a9000 JavaThread "main" [_thread_in_native, id=3832, stack(0x008c0000,0x00910000)]
Other Threads:
0x02afc400 VMThread [stack: 0x02be0000,0x02c30000] [id=1504]
0x02b1b800 WatcherThread [stack: 0x02e10000,0x02e60000] [id=1980]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 4928K, used 2455K [0x22970000, 0x22ec0000, 0x27ec0000)
eden space 4416K, 55% used [0x22970000, 0x22bd5db0, 0x22dc0000)
from space 512K, 0% used [0x22dc0000, 0x22dc0000, 0x22e40000)
to space 512K, 0% used [0x22e40000, 0x22e40000, 0x22ec0000)
tenured generation total 10944K, used 0K [0x27ec0000, 0x28970000, 0x32970000)
the space 10944K, 0% used [0x27ec0000, 0x27ec0000, 0x27ec0200, 0x28970000)
compacting perm gen total 12288K, used 343K [0x32970000, 0x33570000, 0x36970000)
the space 12288K, 2% used [0x32970000, 0x329c5f20, 0x329c6000, 0x33570000)
ro space 10240K, 51% used [0x36970000, 0x36e9ae00, 0x36e9ae00, 0x37370000)
rw space 12288K, 54% used [0x37370000, 0x37a072d8, 0x37a07400, 0x37f70000)
Dynamic libraries:
0x00400000 - 0x00424000 C:\Program Files\Java\jre6\bin\javaw.exe
0x7c900000 - 0x7c9b2000 C:\WINDOWS\system32\ntdll.dll
0x7c800000 - 0x7c8f6000 C:\WINDOWS\system32\kernel32.dll
0x77dd0000 - 0x77e6b000 C:\WINDOWS\system32\ADVAPI32.dll
0x77e70000 - 0x77f03000 C:\WINDOWS\system32\RPCRT4.dll
0x77fe0000 - 0x77ff1000 C:\WINDOWS\system32\Secur32.dll
0x7e410000 - 0x7e4a1000 C:\WINDOWS\system32\USER32.dll
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0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.DLL
0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll
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0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll
0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll
0x71a50000 - 0x71a8f000 C:\WINDOWS\System32\mswsock.dll
0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll
0x76d60000 - 0x76d79000 C:\WINDOWS\system32\iphlpapi.dll
0x76fb0000 - 0x76fb8000 C:\WINDOWS\System32\winrnr.dll
0x76f60000 - 0x76f8c000 C:\WINDOWS\system32\WLDAP32.dll
0x76fc0000 - 0x76fc6000 C:\WINDOWS\system32\rasadhlp.dll
0x10000000 - 0x10052000 C:\Documents and Settings\bkonwar\Local Settings\Temp\jna5972695927945545932.tmp
0x03510000 - 0x03546000 C:\WINDOWS\system32\zkemsdk.dll
0x03560000 - 0x03574000 C:\WINDOWS\system32\commpro.dll
0x662b0000 - 0x66308000 C:\WINDOWS\system32\hnetcfg.dll
0x71a90000 - 0x71a98000 C:\WINDOWS\System32\wshtcpip.dll
VM Arguments:
jvm_args: -Dfile.encoding=Cp1252
java_command: com.xyz.bhabs.fingerPrint
Launcher Type: SUN_STANDARD
Environment Variables:
PATH=C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;;C:\Program Files\Java\jre1.6.0_07\bin;C:\Program Files\Android\android-sdk-windows\tools;C:\Program Files\TortoiseSVN\bin
USERNAME=BKonwar
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 13, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 3
CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 13, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3
Memory: 4k page, physical 2085780k(1286036k free), swap 4024188k(3249652k free)
vm_info: Java HotSpot(TM) Client VM (16.3-b01) for windows-x86 JRE (1.6.0_20-b02), built on Apr 12 2010 13:52:23 by "java_re" with MS VC++ 7.1 (VS2003)
time: Wed May 25 10:02:24 2011
elapsed time: 21 seconds
Regards,
Bhabs
Edited by: 861222 on May 25, 2011 12:19 AM

861222 wrote:
# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0351fe3b, pid=1664, tid=3832Not much to tell here. This line here looks suspiciously like a null-pointer error happening in the native code. It is impossible to say how, where and why. Go back to your code and start debugging I'd say, see where invalid data can be passed to the native code.

Unable to create an instance of the Java Virtual Machine

I hope someone can help me to encounter this problem. Well, I have read the instruction over and over on how to setup SQL Developer.
The version i have installed Oracle Database 11g Express Edition and downloaded sqldeveloper-4.0.0.13.80-no-jre and the jdk version 1.7.0_45. Problem is when setup oracle sql developer, pop-up screen highlight on
Unable to create an instance of the Java Virtual Machine
Located at path : C:\Program Files/Java/jdk1.7.0_45\jre\bin\client\jvm.dlll.
I have select the path earlier stage and direct to the C:\Program Files/Java/jdk1.7.0_45 ONLY FOLDER. It turns out to this error.
At the cmd screen error message as below :
Error occurred during initialization of VM
Could Not reserve enough space for object heap
Anyone do give me advise on how to solve this issue. Thank's alot.

What I did was:
Use
Windows Explorer to browse to C:\Users\user\AppData\Roaming\sqldeveloper\1.0.0.0.0Open
product.conf with wordpad
Go
to the bottom of the file
Uncomment
the 32 bit entry and change it to:Add32VMOption -Xmx512m

Could not create the Java virtual machine What happen?

all,good day!
i use tomcat7 and JRockit JVM;
tomcat7 version info:
Server version: Apache Tomcat/7.0.27
Server built: Mar 31 2012 03:43:36
Server number: 7.0.27.0
OS Name: Linux
OS Version: 2.6.32-220.el6.x86_64
Architecture: amd64
JVM Version: 1.6.0_02-b05
JVM Vendor: BEA Systems, Inc.
JRockit JVM version info:
java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
Oracle JRockit(R) (build R28.2.2-7-148152-1.6.0_29-20111221-2104-linux-x86_64, compiled mode)
in R28 jrdoc ,The -XgcPrio option is deprecated in Oracle JRockit R28. The option works in R28, but Oracle recommends that you use -Xgc instead. For more information, see -Xgc;
in -Xgc option info lists the garbage collection modes that i can specify with the -Xgc option. pausetime mode in which the option；
but，but，i use -Xgc:pausetime in my tomcat7;tomcat startup error:
The configuration of the JVM attributes in Tomcat in catalina.sh
export JAVA_OPTS="-server -Xms25G -Xmx25G -XgcPrio:pausetime -XpauseTarget=200"
the error info:
[ERROR] Argument error: -Xgc:pausetime
[ERROR] pausetime is not a valid garbage collector name for -Xgc.
Valid options are: singlecon, gencon, genpar or parallel (singlepar).
[WARN ] No unit entered for pause time target, assuming ms.
Could not create the Java virtual machine.
what's wrong in my configuration ?
Edited by: 944618 on 2012-7-5 上午4:26

I would add the jvm flag -showversion next to the -Xgc:pausetime flag, so you will see which JVM you're actually running.
Also, the following part of your post is a bit inconsistent, which jvm flag are you actally using?
"but，but，i use -Xgc:pausetime in my tomcat7;tomcat startup error:
The configuration of the JVM attributes in Tomcat in catalina.sh
export JAVA_OPTS="-server -Xms25G -Xmx25G -XgcPrio:pausetime -XpauseTarget=200"
the error info:
[ERROR] Argument error: -Xgc:pausetime"
The error output you posted looks like the error you would get from a R27 version of JRockit.

Unrecognized option: -jrockit Could not create the Java virtual machine.

Hi All,
I hv running 64bit Linux RedHat 5 , having Peopletools 8.49.19 installed jdk 1.5. weblogic 9.2 .. Installation of Weblogic and PIA done completely without any error .. but when i m gonna start ( ./startPIA ) it gives an error ..
Attempting to start WebLogic Server PIA
No activity will be logged to this window.
Server activity will be logged to /....../pt849/webserv/peoplesoft/servers/PIA/logs/PIA_*
PID for WebLogic Server PIA is: 5162
PIA_stderr.log report
Unrecognized option: -jrockit
Could not create the Java virtual machine.
can you please guide the solution that can help me to resolve this error ..
Thanx ..

Configuring Domains to Use the Latest Version of JRockit
If you are using the JRockit SDK, after you install an upgrade patch or run an Upgrade installer, Oracle recommends that you upgrade your domains to use the latest production version of the JRockit SDK. Although the latest version of the JRockit SDK is installed by the upgrade patch or upgrade installer, your domains are not automatically configured to use it.
To configure your domains to use the latest production version of the JRockit SDK, edit the following file:
For Windows:
MW_HOME\domain_location\domains\domain_name\bin\setDomainEnv.cmd
For UNIX:
MW_HOME/domain_location/domains/domain_name/bin/setDomainEnv.sh
Replace all occurrences of the existing JRockit version with the latest production version of the JRockit SDK.
For example, if you are upgrading from WebLogic Server 10.3.2 to WebLogic Server 10.3.3, replace
jrockit_160_14_R27.6.5-32
with
jrockit_160_20_D1.0.1-2119
You can determine the JRockit SDK version number to use for your WebLogic Server version by looking at the JRockit directory name in MW_HOME. The number to use is identical to the directory name.

Start up Error: "Could not create the Java virtual machine"

I downloaded WebLogic Platform 10.3.0.0 (net_server103_win32.exe) and installed it on my Windows Vista laptop.
I am unable to start the server.
From Start menu I selected (WebLogic ServerExamples-->Start Examples Server)
The following output displayed in the console window:
JAVA Memory arguments: -Xms256m -Xmx512m
WLS Start Mode=Development
CLASSPATH=C:\bea\wlserver_10.3\samples\server\examples\build\serverclasses;C:\be
a\patch_wlw1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\be
a\patch_wls1030\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\be
a\patch_cie660\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\bea
\JROCKI~1\lib\tools.jar;C:\bea\WLSERV~1.3\server\lib\weblogic_sp.jar;C:\bea\WLSE
RV~1.3\server\lib\weblogic.jar;C:\bea\modules\features\weblogic.server.modules_1
0.3.0.0.jar;C:\bea\WLSERV~1.3\server\lib\webservices.jar;C:\bea\modules\ORGAPA~1
.5/lib/ant-all.jar;C:\bea\modules\NETSFA~1.0_1/lib/ant-contrib.jar;;C:\bea\WLSER
V~1.3\common\eval\pointbase\lib\pbembedded57.jar;C:\bea\WLSERV~1.3\common\eval\p
ointbase\lib\pbclient57.jar;C:\bea\WLSERV~1.3\server\lib\xqrl.jar;;
PATH=C:\bea\patch_wlw1030\profiles\default\native;C:\bea\patch_wls1030\profiles\
default\native;C:\bea\patch_cie660\profiles\default\native;C:\bea\WLSERV~1.3\ser
ver\native\win\32;C:\bea\WLSERV~1.3\server\bin;C:\bea\modules\ORGAPA~1.5\bin;C:\
bea\JROCKI~1\jre\bin;C:\bea\JROCKI~1\bin;C:\Windows\system32;C:\Windows;C:\Windo
ws\System32\Wbem;C:\Program Files\ATI Technologies\ATI.ACE;C:\Program Files\Comm
on Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\DLLS
hared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;C:\Program File
s\QuickTime\QTSystem\;C:\Program Files\Java\jre1.6.0\bin;C:\groovy\Groovy-1.5.7\
bin;C:\Sun\SDK\bin;C:\Sun\SDK\jdk\bin;C:\bea\WLSERV~1.3\server\native\win\32\oci
920_8
* To start WebLogic Server, use a username and *
* password assigned to an admin-level user. For *
* server administration, use the WebLogic Server *
* console at http:\\hostname:port\console *
starting weblogic with Java version:
java version "1.6.0_05"
Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
BEA JRockit(R) (build R27.6.0-50_o-100423-1.6.0_05-20080626-2105-windows-ia32, c
ompiled mode)
Starting WLS with line:
C:\bea\JROCKI~1\bin\java -jrockit -Xms256m -Xmx512m -Xverify:none -da -Dplat
form.home=C:\bea\WLSERV~1.3 -Dwls.home=C:\bea\WLSERV~1.3\server -Dweblogic.home=
C:\bea\WLSERV~1.3\server -Dweblogic.management.discover=true -Dwlw.iterativeD
ev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= -Dweblogic.ext.dirs=C:\bea\patc
h_wlw1030\profiles\default\sysext_manifest_classpath;C:\bea\patch_wls1030\profil
es\default\sysext_manifest_classpath;C:\bea\patch_cie660\profiles\default\sysext
manifestclasspath -Dweblogic.Name=examplesServer -Djava.security.policy=C:\bea
\WLSERV~1.3\server\lib\weblogic.policy weblogic.Server
Could not create the Java virtual machine.
Stopping PointBase server...
PointBase server stopped.
C:\bea\wlserver_10.3\samples\domains\wl_server>
Does anyone have any suggestions on how to troubleshoot this problem?
Thank you,
B. Regan

I do not know how to modify any startup parameters. I am new to WebLogic and downloaded and installed the server for the first time yesterday. I used all of the defaults for the install. To start the server I am using Windows Start menu like this:
Start-->All Programs-->Oracle WebLogic-->WebLogic Server 10gR3-->Examples-->Start Examples Server
A command prompt window opens and the messages I described earlier display in the window.
These were the messages when I used another command window to call the example server domain's bin\setDomainEnv.cmd script and then execute java -version (as suggested in the earlier post):
C:\bea\wlserver_10.3\samples\domains\wl_server>java -version
java version "1.6.0_05"
Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
BEA JRockit(R) (build R27.6.0-50_o-100423-1.6.0_05-20080626-2105-windows-ia32, c
ompiled mode)
I see now that when I go to
Start-->All Programs-->Oracle WebLogic-->WebLogic Server 10gR3-->Examples
that there is an option to "Stop Example Server" When I choose that option another command window opens, a couple of messages scroll by, there's a pause at a "connecting to t3://localhost:7001" then a bunch of message flash by and the command window disappears. So I can't capture the output of that command.
I tried rebooting my laptop but no change in the behavior.
There is some good news. I tried starting the Medical Records Server. That command succeeded. I will see what I can learn through using the Medical Records Server and ignore the Examples Server for now.
Thank you for the suggestions.
B.Regan

ASAP: Serial Versioning and the Microsoft Virtual Machine

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