Dbassist/jvm problem

I have installed the jdk 1.1.7v3 & am getting the following
message from dbassist:
Unable to initialize threads: cannot find class java/lang/Thread
Could not create Java VM
Regards,
Adam Levar
null

Thanks!
Adam
Shih-Chung Lin (guest) wrote:
: Adam Levar (guest) wrote:
: : I have installed the jdk 1.1.7v3 & am getting the following
: : message from dbassist:
: : Unable to initialize threads: cannot find class
: java/lang/Thread
: : Could not create Java VM
: : Regards,
: : Adam Levar
: Install the jre 1.1.7v3 can be solve this problem.
: Regards.
: Shih-Chung Lin
null

Similar Messages

Thread problem or jvm problem?

Hello, I've posted message on this link and now I've finished my project. Now, I have a different problem: that's why I'm posting this message here.
if you want me to post my project code, I can , but I think it's not necessary for now... So, there are 5 classes; Main, Thread1 extends Thread, thread2 extends Thread, Thread3 extends Thread and ThreadFactory... in main method; factory instance is called for the creation of threads; so in main three type of thread instance created by factory. And right after that threads starts running and thread1 finished first, thread2 finished second, and thred3 finished third; However, the program itself never ends. There is a problem with thread endings. I've also make dubugging. Main thread creates the three of them and first main thread finishes second thread1 and the other three never finishes... keeps running.
when main thread end it's state becomes zombie and thread1 also becomes zombie tooo.... but the other 2 of them never ends. I've tried may� things to do that: I've used finalyze() method too. Nothing chanced.
I guessed that this may happen becouse of JVM... so what do you suggest for ending threads in a sequence like thread1, thread2, thread3, main?

no help?

Applet ms jvm problem

Hi all,
I'm writing an applet in which I use threads and it's giving me some errors with msjvm I don't understand.
With sun plugins there is no problem and all is ok.
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canceled = false;
statMessage = null;
image_byte = null;
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I can't explain me where is my error.
Running my applet on msjvm, it semms that LongTask never ends and never update the volatile variables.
Any hints?
Thanks for the support
Laura

Solved.
The ms jvm support 1.1* and then there is no Double.parseDouble.....
You have to use Double.valueOf(....).doubleValue();
Bye
Laura

JVM problem with EJB...

Hi,
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at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
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at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
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JVM problem in installing oracle9i on Red Hat Linux ver 4.18

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Error are
" Initializing Java Virtual Machine from /tmp/OraInstall2007-06-10_12-11-22AM/jre/bin/java. Please wait...
Error occurred during initialization of VM
Unable to load native library: /tmp/OraInstall2007-06-10_12-11-22AM/jre/lib/i386/libjava.so: symbol __libc_wait, version GLIBC_2.0 not defined in file libc.so.6 with link time reference"
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at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1282)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)
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Truncated. see log file for complete stacktrace
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JVM problem during Oracle8i installation on Redhat Linux 9

Hi there,
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Java & JVM Problems!

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JVM Compatibility

(new thread please!) Grant Ronald - Forms Product Management.
At your request Grant.
Compatibility ( Jinit vs Ms JVM vs Sun JVM ) - Not sure what you mean, we certify Jinit, we certify native JVMs we certify the Sun plug in, we certify IE, we certify NS, we certify Mac browsers - whats the issue
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We do not have this problem with the menu applet that we use.
The solution to this is to force a download of a JVM as part of the initial process. As we examined this we found:
1. Jinitiator -
8 megabyte download
No Feedback on download when triggered from the form until the download is complete.
No usable Oracle source for the plug-in. Try wading through the download to get the right Jinitiator.
No Web Install for Jinitiator. ( user gets F.U.D. when faced with exe download pop up).
2. Microsoft JVM
5 megabyte download if you can find it.
No longer supported by Microsoft, but available on other sites.
Limited functionallity. 800k Cab file must be downloaded for each form session.
3. Sun Java Plug-in
14 megabyte download
This downloads and installs as J2ME not as a simple plug in.
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The current download 1.4.2_1 also has warnings on the download that the file does not match the certificate.
Also, the signature of the applet with JDK is downright hokey.
Distributing an applet signed by "Developer" whose authenticity is verified by "Oracle" who is not trusted.
Come on. This is your "Oracle's" applet not and you can afford to buy a certificate from Verisign.
As we developers and our customers struggle, we see Microsoft pushing .Net where the promise is 95% compatibility with no download required ( since the hide it in the base OS).
Grant you are caught in the middle but there are things that you can do.
1. Fix the jar signature now
2. Continue to work with Sun on a light-weight browser plug-in. The "Java Get it now" should be as simple as the Acrobat reader process without the extra baggage.
These are the things to do if you are serious and we are watching you.
Kevin

Kevin,
sure Forms very much depends on the JVM it is executed in. But saying "Continue to work with Sun on a light-weight browser plug-in. The "Java Get it now" should be as simple as the Acrobat reader process without the extra baggage." is not fair as it ignores the fact that Adobe is a meta data definition while Java is a J2SE platform for real application programming.
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Partial - on demand - loading of the Java platform code does not work either for security reason.
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Hi
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Situation: We're testing a webapplication on Tomcat (runs as a Windows service (Tomcat.exe) ). During testing the Tomcat-service suddenly ends, the Windows eventlog logs states something like: "...service ended unexpectedly..."
Environment: Tomcat 4.1.29, JDK 1.4.2_03, Windows 2000ProSP4, bi-processor Xeon machine.
While analyzing the DrWatson log file, I can always find the same important (I think) information in the same order:
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!JVM_RegisterPerfMethods,
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!JVM_Sleep,
msafd!WSPSetSockOpt,
ws2_32!WSAAccept,
ws2_32!accept,
ws2_32!recv,
!Java_java_net_SocketInputStream_socketRead0.
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The problem only seems to occur when the servermachine is completely left alone (and not logged in or in locked state) Additionally, it usually occurs after between 30-60 minutes or so. When I keep monitoring (logged in) the machine while the tests are running the crash doesn't seem to occur ?! This makes me think it could be an issue with power-saving that kicks in, like e.g. with the network-adaptor ?
If we don't use JNI, and "access violation"s are stated, does this mean it's a JVM-issue or ... ? Or is it more likely it's an issue of this Tomcat.exe ?
On a sidenote, does anyone know why a logfile might not be produced, and if there is anything i could try to make the jvm produce some intelligable output upon crashing?
Kind regards,
David

Hi again,
First of all thanks for the valuable help so far !
As I'm still searching an anwser for the problem, I noticed the drwtsn32.log file also (sometimes) mentions HotSpot, this is a line from my drwtsn32.log file:
mov ecx,[gHotSpotVMLongConstantEntryValueOffset+0x13f48[/i]
Now, I'm not an expert on HotSpot, but I too know there have been numerous problems reported before with this technology.
Ramesh, it sure looks like your hypothesis about the runtime compilation corresponds to this problem a lot.
Additionally, I must also mention the fact that the problem only seems to occur during stress-tests (concurrency-problem?) and is NOT reproducable reliably. All of this makes me think even more that it's a JVM problem of some kind, what is your (anyone) opinion about this ?
Again, thanks for your support, it sure helps a lot !
Kind regards,
David

Wily introscope 8.2.2 : unable to start due to JVM error

Hi,
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I followed installation guide and I encountered a first "license error" to start Enterprise Manager that I resolved by installing SAP Management Modules.
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STATUS | wrapper | 2010/07/01 18:05:24 | --> Wrapper Started as Service
STATUS | wrapper | 2010/07/01 18:05:24 | Java Service Wrapper Standard Edition 32-bit 3.3.6
STATUS | wrapper | 2010/07/01 18:05:24 |   Copyright (C) 1999-2009 Tanuki Software, Ltd. All Rights Reserved.
STATUS | wrapper | 2010/07/01 18:05:24 |     http://wrapper.tanukisoftware.org
STATUS | wrapper | 2010/07/01 18:05:24 |   Licensed to CA Wily Technology for Introscope Enterprise Manager
STATUS | wrapper | 2010/07/01 18:05:24 |
STATUS | wrapper | 2010/07/01 18:05:24 | Launching a JVM...
INFO   | jvm 1    | 2010/07/01 18:05:24 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperSimpleApp
INFO   | jvm 1    | 2010/07/01 18:05:24 | Exception in thread "main"
ERROR | wrapper | 2010/07/01 18:05:24 | JVM exited while loading the application.
STATUS | wrapper | 2010/07/01 18:05:29 | Launching a JVM...
INFO   | jvm 2    | 2010/07/01 18:05:29 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperSimpleApp
INFO   | jvm 2    | 2010/07/01 18:05:29 | Exception in thread "main"
ERROR | wrapper | 2010/07/01 18:05:29 | JVM exited while loading the application.
STATUS | wrapper | 2010/07/01 18:05:34 | Launching a JVM...
INFO   | jvm 3    | 2010/07/01 18:05:34 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperSimpleApp
INFO   | jvm 3    | 2010/07/01 18:05:34 | Exception in thread "main"
ERROR | wrapper | 2010/07/01 18:05:34 | JVM exited while loading the application.
STATUS | wrapper | 2010/07/01 18:05:39 | Launching a JVM...
INFO   | jvm 4    | 2010/07/01 18:05:39 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperSimpleApp
INFO   | jvm 4    | 2010/07/01 18:05:39 | Exception in thread "main"
ERROR | wrapper | 2010/07/01 18:05:39 | JVM exited while loading the application.
STATUS | wrapper | 2010/07/01 18:05:44 | Launching a JVM...
INFO   | jvm 5    | 2010/07/01 18:05:44 | java.lang.NoClassDefFoundError: org/tanukisoftware/wrapper/WrapperSimpleApp
INFO   | jvm 5    | 2010/07/01 18:05:45 | Exception in thread "main"
ERROR | wrapper | 2010/07/01 18:05:45 | JVM exited while loading the application.
FATAL | wrapper | 2010/07/01 18:05:45 | There were 5 failed launches in a row, each lasting less than 300 seconds. Giving up.
FATAL | wrapper | 2010/07/01 18:05:45 |   There may be a configuration problem: please check the logs.
STATUS | wrapper | 2010/07/01 18:05:45 | <-- Wrapper Stopped
Regards,
Pascal LARRAT
Edited by: LARRAT Pascal on Jul 5, 2010 11:44 AM

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Intermittent JVM SIGSEV crashes in symbols of various GC strategies

h2. Hello!
Our JVM crashes on a very regular base with a SIGSEV located in symbols located in the GC implementations.
We tried to split up our deployment into multiple, smaller JVMs as well as switching over to CMS based GC.
Both did not help.
Here 3 typical crash frames:
# V [libjvm.so+0x69c800] MarkSweep::IsAliveClosure::do_object(oopDesc*)+0x20
# V [libjvm.so+0x756687] PSMarkSweepDecorator::precompact()+0x307
# V [libjvm.so+0x4b0f1a] instanceKlass::oop_follow_contents(oopDesc*)+0x13a
The deployed applications produce a complex and wide web of object graphs, but has only a moderate CPU load.
Any hints what might be the problem and on how to tackle them?
Thank your very much for your support
- Benjamin
h2. JVM Arguments
*"Old" Parallel Version*
jvm_args: -XX:NewRatio=2 -XX:+UseParallelGC -XX:ParallelGCThreads=4 -XX:MaxPermSize=512m -Xms1350M -Xmx4096M -Xss1024k -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Xloggc:/srv/tomcat/logs/gc.log
CMS GC
jvm_args: -XX:+UseConcMarkSweepGC -XX:+CMSScavengeBeforeRemark -XX:+UseParNewGC -XX:+CMSConcurrentMTEnabled -XX:NewRatio=2 -XX:MaxPermSize=512m -Xms1350M -Xmx3072M -Xss1024k -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Xloggc:/srv/tomcat/logs/gc.log
h2. Full Crash Stacks
Stack: [0x00007fc7bb6e0000,0x00007fc7bb7e1000], sp=0x00007fc7bb7df5a8, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x69c800] MarkSweep::IsAliveClosure::do_object(oopDesc*)+0x20
V [libjvm.so+0x46fb0f] GenMarkSweep::invoke_at_safepoint(int, ReferenceProcessor*, bool)+0x28f
V [libjvm.so+0x3c01b9] CMSCollector::do_compaction_work(bool)+0x1f9
V [libjvm.so+0x3bfbd0] CMSCollector::acquire_control_and_collect(bool, bool)+0x160
V [libjvm.so+0x3bf8d8] ConcurrentMarkSweepGeneration::collect(bool, bool, unsigned long, bool)+0xf8
V [libjvm.so+0x46ccaa] GenCollectedHeap::do_collection(bool, bool, unsigned long, bool, int)+0x51a
V [libjvm.so+0x46e1b3] GenCollectedHeap::do_full_collection(bool, int)+0x53
V [libjvm.so+0x85fd36] VM_GenCollectFull::doit()+0x66
V [libjvm.so+0x86d7fa] VM_Operation::evaluate()+0x4a
V [libjvm.so+0x86cde2] VMThread::evaluate_operation(VM_Operation*)+0x82
V [libjvm.so+0x86d053] VMThread::loop()+0x193
V [libjvm.so+0x86cb5e] VMThread::run()+0x6e
V [libjvm.so+0x710adf] java_start(Thread*)+0x13f
VM_Operation (0x00007fc7ba70c520): GenCollectFull, mode: safepoint, requested by thread 0x000000004167f800
Stack: [0x00007f330cca1000,0x00007f330cda2000], sp=0x00007f330cda04f0, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x4b0f1a] instanceKlass::oop_follow_contents(oopDesc*)+0x13a
V [libjvm.so+0x69c33b] MarkSweep::follow_stack()+0x7b
V [libjvm.so+0x755e14] PSMarkSweep::mark_sweep_phase1(bool)+0xe4
V [libjvm.so+0x754cc1] PSMarkSweep::invoke_no_policy(bool)+0x481
V [libjvm.so+0x754803] PSMarkSweep::invoke(bool)+0x83
V [libjvm.so+0x8608f7] VM_ParallelGCSystemGC::doit()+0xf7
V [libjvm.so+0x86d7fa] VM_Operation::evaluate()+0x4a
V [libjvm.so+0x86cde2] VMThread::evaluate_operation(VM_Operation*)+0x82
V [libjvm.so+0x86d053] VMThread::loop()+0x193
V [libjvm.so+0x86cb5e] VMThread::run()+0x6e
V [libjvm.so+0x710adf] java_start(Thread*)+0x13f
VM_Operation (0x00007f3307dfc710): ParallelGCSystemGC, mode: safepoint, requested by thread 0x00000000409cd000
Stack: [0x00007f3d8893f000,0x00007f3d88a40000], sp=0x00007f3d88a3e6f0, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x756687] PSMarkSweepDecorator::precompact()+0x307
V [libjvm.so+0x757cd4] PSOldGen::precompact()+0x24
V [libjvm.so+0x754d24] PSMarkSweep::invoke_no_policy(bool)+0x4e4
V [libjvm.so+0x754803] PSMarkSweep::invoke(bool)+0x83
V [libjvm.so+0x8608f7] VM_ParallelGCSystemGC::doit()+0xf7
V [libjvm.so+0x86d7fa] VM_Operation::evaluate()+0x4a
V [libjvm.so+0x86cde2] VMThread::evaluate_operation(VM_Operation*)+0x82
V [libjvm.so+0x86d053] VMThread::loop()+0x193
V [libjvm.so+0x86cb5e] VMThread::run()+0x6e
V [libjvm.so+0x710adf] java_start(Thread*)+0x13f
VM_Operation (0x00007f3d83996890): ParallelGCSystemGC, mode: safepoint, requested by thread 0x00007f3d844a7800
h2. Heap distributions
ParallelGC
PSYoungGen total 432768K, used 9064K [0x00000007aaab0000, 0x00000007c6cb0000, 0x0000000800000000)
eden space 405632K, 0% used [0x00000007aaab0000,0x00000007aaab0000,0x00000007c36d0000)
from space 27136K, 33% used [0x00000007c36d0000,0x00000007c3faa130,0x00000007c5150000)
to space 27136K, 0% used [0x00000007c5230000,0x00000007c5230000,0x00000007c6cb0000)
PSOldGen total 921600K, used 765369K [0x0000000700000000, 0x0000000738400000, 0x00000007aaab0000)
object space 921600K, 83% used [0x0000000700000000,0x000000072eb6e7c8,0x0000000738400000)
PSPermGen total 199552K, used 158747K [0x00000006e0000000, 0x00000006ec2e0000, 0x0000000700000000)
object space 199552K, 79% used [0x00000006e0000000,0x00000006e9b06db0,0x00000006ec2e0000)
CMS
par new generation total 414784K, used 69179K [0x0000000720000000, 0x000000073c210000, 0x0000000760000000)
eden space 368704K, 6% used [0x0000000720000000, 0x000000072168ef80, 0x0000000736810000)
from space 46080K, 100% used [0x0000000739510000, 0x000000073c210000, 0x000000073c210000)
to space 46080K, 0% used [0x0000000736810000, 0x0000000736810000, 0x0000000739510000)
concurrent mark-sweep generation total 1046400K, used 625509K [0x0000000760000000, 0x000000079fde0000, 0x00000007e0000000)
concurrent-mark-sweep perm gen total 85788K, used 51439K [0x00000007e0000000, 0x00000007e53c7000, 0x0000000800000000)
h2. Machine spec
JRE version: 6.0_26-b03
Java VM: Java HotSpot(TM) 64-Bit Server VM (20.1-b02 mixed mode linux-amd64 compressed oops)
uname:Linux 2.6.32.29-0.3-default #1 SMP 2011-02-25 13:36:59 +0100 x86_64
vm_info: Java HotSpot(TM) 64-Bit Server VM (20.1-b02) for linux-amd64 JRE (1.6.0_26-b03), built on May 4 2011 01:13:47 by "java_re" with gcc 3.2.2 (SuSE Linux)
libc:glibc 2.11.1 NPTL 2.11.1
rlimit: STACK 8192k, CORE 1k, NPROC infinity, NOFILE 8192, AS 59803600k
load average:0.04 0.02 0.01
MemTotal: 37009784 kB
Memory: 4k page, physical 37009784k(2027440k free), swap 37744708k(37744496k free)
CPU:total 16 (4 cores per cpu, 2 threads per core) family 6 model 26 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, ht

Hi jschell! Thanks for your pointers!
We do not use JNI. We DO use the latest JVM. Furthermore all code frames point to "libjvm.so" and "VMThread" with "VM_Operation".
I it really looks more to some 64-bit JVM problem.
I did a forum and bug search in advance to bothering, but was not sucessfull.
A repeated search for a helping topics gave me following topics which might be related:
<li> {thread:id=1540042}
<li> {thread:id=1557245}
<li> {message:id=6438249}
Is the thread you were thinking of in the list? As a result of this search I will try:
<li> disabling -XX:+HeapDumpOnOutOfMemoryError
<li> try -XX:-ReduceInitialCardMarks
<li> ensure memory overcomittment is not the problem
Futhermore I found the resource "Troubleshooting Guide for Java SE 6 with HotSpot VM" very helpful more of the background details,
though I was not able to distill a solution out of it: http://www.oracle.com/technetwork/java/javase/crashes-137240.html

Dbassist/jvm problem

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