I've extended java.lang.Thread. How do I get WebLogic to use my version?

I want to add a String attribute to the thread class to save some extra info I need. I extended the Thread class with a private String with getter/setter methods.
Since WebLogic instantiates the threads and not my own code, how do I get WebLogic to use my version of Thread instead of the one from java.lang?
-Bill

I don't think it's possible to have WLS use your own thread implementation for WLS internals. However, for your own custom work, it's pretty straight-forward to use the CommonJ Work Manager API and add your own implementation details for a thread pool.
See documentation: http://download.oracle.com/docs/cd/E12839_01/web.1111/e13701/self_tuned.htm#i1069944
WorkManager Javadocs: http://download.oracle.com/docs/cd/E12839_01/apirefs.1111/e13941/index.html?commonj/work/WorkManager.html
Specifically providing your own Work interface implementation should hopefully allow you to meet your need.
Edited by: james.bayer on Feb 15, 2010 6:40 AM

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URGENT- PLEASE HELP: java.lang.threads and BC4J

Hi,
according to my issue "no def found for view" in the same titled thread I'm wondering how you would implement asynchronous calls of methods that use BC4J to update a couple of data.
To be more precise:
A requirement of our software is to start an update database job, which can take a couple of minutes/hours, from the web browser. Before it will be executed the logged-in user receives a notification that this batch job has been started.
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Arno,
many thanks for your reply:
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int rAnzahlSaetze = 0;
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catch (Exception e)
e.printStackTrace();
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return rAnzahlSaetze;
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aAenderungsdienstNr)
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[656] No xml file: /hvbg/svi/model/businessobjects/IK_Inlandsbankverb.xml, metaobj = hvbg.svi.model.businessobjects.IK_Inlandsbankverb
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Cannot find class java/lang/Thread

I'm getting this error trying to compile a program that I'm writing in java. Its a very simple program just to get me back to basics. Any ideas as to how I can fix this problem??

Extracted from Sun's website,
* Error Message: "Exception in thread NULL" or
"Unable to initialize threads: cannot find class java/lang/Thread"
If you are getting one of these fatal error messages when running java,
javac, or appetviewer, you should check your CLASSPATH environment variable.
It may list "c:\java" or the "classes" directory from an older release. You can either unset the CLASSPATH variable, or set it to
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C:\> set CLASSPATH=.;C:\jdk1.1.8\lib\classes.zip
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-- Sudha

Thread unserialized exception: NotSerializableException: java.lang.Thread

hello experts,
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this is coming when i m accessing this method:
class BallServerImpl extends UnicastRemoteObject
implements BallServer
* @return an enumeration of all Balls as proxy objects
public Ball[] getAllBallProxies() throws java.rmi.RemoteException
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java.util.Enumeration iter = hash.elements();
int idx = 0;
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locations1[idx++] = new BallProxy(impl);
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why this function is running fine when i m calling this from client unlike getAllBallProxies() nevertheless both are returning the same thing:
* @return an enumeration of all Balls as remote references
public Ball[] getAllBalls()
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java.util.Enumeration iter = hash.elements();
int idx = 0;
while (iter.hasMoreElements())
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the proxy Class:
* The Proxybouncing ball.
public class BallProxy implements Serializable,Ball {
* The Real bouncing ball.
public class BallImpl extends UnicastRemoteObject implements IBallRemote,Serializable
*load of thanks as this is "SHOW STOPPER",
jibbylala*
Edited by: 805185 on Oct 25, 2010 8:33 PM
Edited by: 805185 on Oct 25, 2010 8:39 PM
Edited by: 805185 on Oct 25, 2010 9:21 PM
Edited by: 805185 on Oct 25, 2010 9:25 PM
Edited by: 805185 on Oct 25, 2010 9:27 PM
Edited by: 805185 on Oct 25, 2010 9:46 PM

that there was some thread there in BallProxy but i removed all from them and now testingIf you don't post the code people ask to see, you may never get a useful answer here.
P.S i didn't know that threads are not SerializedThe Thread class is not Serializable. Precision please.
Now i m updating the code, i needed the confirmationConfirmation of what?
and now trying to avoid them.Them?
But what if i need them.Them?
Please make the effort to express yourself clearly. You've already been told you're not making much sense and you haven't done anything about it.
how can we make serialized?The concept of serializing a Thread makes no sense whatsoever. You don't want to do it. You don't need to do it. You can't do it. It wouldn't work if you could do it.
Somewhere or other you have a class member that is a reference to a Thread. Remove it or make it transient. If you post the code somebody may help you. If you don't, nobody can possibly do that.

Collection not in context? java.lang.Exception: java.lang.Thread.dumpStack(Thread.java:1342)

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Any Ideas??
Regards

Well, have you run the app with logging set to fine as the message suggested?
Turn on fine level logging for a stack trace of this call. Component ID: {0}
Then a test case and a detailed description on how to reproduce the error, built on the hr schema, can help.
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Non-static version of java.lang.Thread.dumpstack?

hi,
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java.lang.Thread.dumpstack would be ideal if only it were an instance method..
thanks,
asjf

what's the probelm? you call this in the threads class
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import java.util.*;
import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
import javax.swing.event.*;
public class JThreadExp extends JPanel {
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            try {
               TreePath tp = e.getPath();
               System.out.println(tp.getLastPathComponent());
               ByteArrayOutputStream baos = new ByteArrayOutputStream();
               PrintStream ps = new PrintStream(new BufferedOutputStream(baos, 1024*1024));
               System.setErr(ps);
               Thread t = (Thread) tp.getLastPathComponent();
               try {
                  t.dumpStack();
               } catch(Throwable ee) {}
               ps.close();
               jta.setText(baos.toString()); //newXML.toString());
            } catch(Exception e2) {
               msg = e2.getMessage();
            System.setErr(stderr);
            if(msg!=null)
               System.out.println(msg);
   public static void main(String[]arg) throws Exception {
      JFrame frame = new JFrame("JThreadExp");
      JThreadExp jte;
      final ThreadModel tm = new ThreadModel();
      frame.getContentPane().add(jte = new JThreadExp(tm));
      frame.pack();
      frame.setVisible(true);
      final JTree tree = jte.tree;
      new Thread(new Runnable() {
         public void run() {
            try {
               while(true) {
                  TreeModelEvent tme = new TreeModelEvent(this, new Object [] {tm.getRoot()});
                  for(Iterator i = tm.listeners.iterator(); i.hasNext(); )
                     ((TreeModelListener) i.next()).treeStructureChanged(tme);
                  Thread.sleep(5000);
                  new Thread(new Runnable() {
                     public void run() {
                        try { Thread.sleep(50000); } catch(Exception e) {e.printStackTrace();}
                  } ).start();
            } catch(Exception e) {
               e.printStackTrace();
      } ).start();
class ThreadModel implements TreeModel {
   public boolean isLeaf(Object node) { return (node instanceof Thread); }
   public Object getRoot() {
      ThreadGroup uppermost = Thread.currentThread().getThreadGroup();
      while(uppermost.getParent()!=null)
        uppermost = uppermost.getParent();
      return uppermost;
   public Object getChild(Object p, int i) {
      Object result = "<unavailable>";
      if(p instanceof ThreadGroup) {
         ThreadGroup parent = (ThreadGroup) p;
         ThreadGroup[] tg = new ThreadGroup[parent.activeGroupCount()];
         Thread[] t = new Thread[parent.activeCount()];
         parent.enumerate(tg, false);
         parent.enumerate(t, false);
         if(i<tg.length)
            result = tg;
else if(i<tg.length+t.length)
result = t[i-tg.length];
return result;
public int getChildCount(Object node) {
int result = 0;
if(node instanceof ThreadGroup) {
ThreadGroup parent = (ThreadGroup) node;
ThreadGroup[] tg = new ThreadGroup[parent.activeGroupCount()];
Thread[] t = new Thread[parent.activeCount()];
result += parent.enumerate(tg, false);
result += parent.enumerate(t, false);
return result;
public int getIndexOfChild(Object parent, Object child) {
for(int i=0; i<getChildCount(parent); i++) {
if(getChild(parent,i).equals(child))
return i;
return -1;
Set listeners = new HashSet();
public void addTreeModelListener(TreeModelListener l) {
listeners.add(l);
public void removeTreeModelListener(TreeModelListener l) {
listeners.remove(l);
public void valueForPathChanged(TreePath path, Object newValue) { // this shouldn't be called - Tree is not editable
System.out.println("valueForPathChanged");
} The problem is that I'd like to obtain a reference to a Thread object (which I haven't written the code for) and get a (vaguely accurate if not exact) stack dump from it.
I'll have a look over JDB in the meantime thanks :)
thanks,
asjf

Question on java.lang.Thread "starting problems"

hi everybody
i've just little trouble running a tiny program which uses Threads.
maybe there's a misunderstanding from my side:
About my code:
01 public class MyThread extends Thread {
02
03    String any_string = null;
04
05    public MyThread(String param) {
06      any_string = param;
07      this.start();
08    }
09
10    public void run() {
11      while(!isInterrupted()) {
12        System.out.println(" > This Thread is running!");
13        // any other operation...
14        try {
15        sleep(1000);
16      }
17      catch(Exception e) {}
18    }
19 }This is a Thread's code similar to those you can find it in the java.lang.Thread Documentation or in the java Tutorial.
In my example I got a IllegalThreadStateException in codeline 07 which means (compare to java.lang.Thread Documentation) that the code tries to start the Thread while the Thread is still running.
I always thought a Thread will not start itself.
I thought (and that's the way, i red it in the documentation) that the constructor of a Thread only allocates the new Thead-Object.
But by constructing MyThread I got the descripted exception (i'm beginning to repeat myself...). The "funny" thing on this exception is that the Thread at least IS running but there could be no Object allocated
01 ...
02 /**
03   * construction of a new Object of the class MyThread.
04   * test will be auto-started by the MyThread constructor
05   */
06 MyThread test = new MyThread("any-string");
07 ...
08 test.anyMethodOfClassMyThread();This little code generates a java.lang.NullPointerException in line 08 (when trying to access the object of class MyThread). Even after the application exits (in case of this exception), the run()-Method of MyThread generates its Text-Output " > This Thread is running!". argh
Does anyone see my mistake / misunderstanding??
It's really frustrating if you are sitting in front of your pc and can't get the reason why your prog is generating that "bullshit" (ok... i know - it's only generatting the bullshit I told it to generate :( )
Any suggestions or ideas
thanks,
Thof

Well now, I don't get a NullPointerException, when I try to call a method of MyThread. Here's your code, with slight modifications by me:
public class MyThread extends Thread {
    String any_string = null;
    public MyThread(String param) {
        any_string = param;
        this.start();
    public String getAnyString(){
        return any_string;
    public void run() {
        while(!isInterrupted()) {
            System.out.println(" > This Thread is running!");
            try {
                sleep(1000);
            catch(Exception e) {}
}To test the app I wrote this class:
public class TestMyThread {
    public static void main(String[] args) {
        MyThread temp = new MyThread("Hello World");
        System.out.println(temp.getAnyString());
}Now it does print out the correct "Hello World".
Your other problem of the thread not shutting down is because it is not a daemon thread. To solve this you will need to add this Thread to a ThreadGroup and set the ThreadGroup as a Daemon group. (see ThreadGroup::setDaemon() )
Or you can put a little boolean in your while loop and break out when you change the value of the boolean. Then when you want to shut down you simply change the boolean
Hope this helps
-Philip

Deprecated methods in java.lang.thread

Hi,
I am getting the followng warning message when i run my code:
The method void stop() in class java.lang.Thread has been deprecated,
can anyone suggest an alternative method to the deprectaed stop method, i can't seem to find one.
Thanks in advance

The stop() method in thread has been deprecated because it is inherently dangerous. The suggested action now is to simply modify a variable inside the thread to tell it to stop running, and the thread should periodically check the variable to see when it should stop. There's good description of why stop() and a few other methods in Thread have been deprecated at..
http://java.sun.com/j2se/1.4/docs/guide/misc/threadPrimitiveDeprecation.html

Java.lang.thread exception while using Xalan 2.0 in WLS 6.0

Hi, I'm trying to use Xalan 2.0 in a servlet hosted by WLS. Ive
modified Xalan's SimpleTransform sample to be a servlet. I
create a Transformer with the .xsl, then call tranform() to
print the tranformed xml to the response stream. The xml is
tranformed correctly, but it throws a java.lang.thread
exception. The standalone Xalan sample doesn't do this. Anyone
else seen this problem?
Here's the code of interestest, I apologize if its not formatted very well:
public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException
     PrintWriter out = res.getWriter();
     res.setContentType("text/html");
     out.println("<html><head><title>XalanTest<title></head>");
     out.println("<body><h1>XalanTest</h1>");
     try{
     TransformerFactory tFactory = TransformerFactory.newInstance();
     StreamSource ss = new StreamSource("file:\\\\My-path\\birds.xsl");
     Transformer transformer = tFactory.newTransformer(ss);
     StreamResult SR = new StreamResult(out);
     transformer.transform(new StreamSource("file:\\\\My-path\\birds.xml"), SR );
     catch(Exception e){
     out.println("<p>" + e.toString() + "</p>");
     e.printStackTrace(out);
     out.println("<p>Exception</p>");
          out.println("</body></html>");

It also looks like the workaround suggested does not work.
I put the following code as workaround:
     response.setContentType("text/html");
     response.setHeader ("Pragma", "no-cache");
     Transformer transformer;
     TransformerFactory factory = TransformerFactory.newInstance();
     String stylesheet = "config\\closs\\applications\\webroot\\jsp\\example\\Load2.xsl";
     String sourceId = "config\\closs\\applications\\webroot\\jsp\\example\\Load2.xml";
     String outputFile = "config\\closs\\applications\\webroot\\jsp\\example\\Load2.html";
     String outputDirectFile = "config\\closs\\applications\\webroot\\jsp\\example\\Load2_Direct.html";
     try
          PrintWriter fout = new PrintWriter (new FileOutputStream (outputFile));
          OutputStream os = new ByteArrayOutputStream();
          transformer = factory.newTransformer(new StreamSource(stylesheet));
          transformer.transform(new StreamSource(sourceId), new StreamResult(outputDirectFile));
          transformer.transform(new StreamSource(sourceId), new StreamResult(os));
          os.flush ();
          os.close();
          out.print(os.toString());
          fout.print (os.toString ());
          fout.flush ();
          fout.close ();
     catch (Exception e)
          // Error Handler
     e.printStackTrace();
The two .html files produced look exactly the same, which is good.
However, the screen output to my html browser (Internet Explorer 5.50 sp1) produces
different output.
That is strange, but that shows that this bug does not have a known workaround
"Rabinowitz" <[email protected]> wrote:
>
I have the same problem with java sun xml parser (jaxp 1-1)
It is interesting to know that all this perfectly works under weblogic
5.1, so
I cannot migrate my application to 6.0
So, the functionality of weblogic 6.0 degraded since 5.1.
I cannot buy the explanation that that is not bea's fault, because it
perfectly
worked with the same version of xml parser.
Now, their customer support is saying they have not decided whether this
is a
bug or a feature.
Interesting to know that degradation of functionality could be a feature!
It is now June 21, 3 months since this bug was reported, sp2 was shipped
since
that time, and this bug is still there.
"Chuck H. Zhao" <[email protected]> wrote:
I am having the exact same problem you are having. If we analyze the
stack
trace:
javax.xml.transform.TransformerException: java.lang.Thread
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.j
ava:1212)
at
org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:2894)
at java.lang.Thread.run(Thread.java:484)
java.lang.ClassCastException: java.lang.Thread
at
weblogic.servlet.internal.ResponseHeaders.setDateHeader(ResponseHeaders.java
:273)
at
weblogic.servlet.internal.ServletResponseImpl.setDateHeader(ServletResponseI
mpl.java:449)
at
weblogic.servlet.internal.ServletResponseImpl.writeHeaders(ServletResponseIm
pl.java:637)
at
weblogic.servlet.internal.ServletOutputStreamImpl.flush(ServletOutputStreamI
mpl.java:124)
at
weblogic.servlet.internal.WLOutputStreamWriter.flush(WLOutputStreamWriter.ja
va:124)
at java.io.PrintWriter.flush(PrintWriter.java:120)
at
org.apache.xalan.serialize.SerializerToXML.flushWriter(SerializerToXML.java:
1431)
at
org.apache.xalan.serialize.SerializerToXML.endDocument(SerializerToXML.java:
629)
at
org.apache.xalan.transformer.ResultTreeHandler.endDocument(ResultTreeHandler
..java:180)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.j
ava:1194)
at
org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:2894)
at java.lang.Thread.run(Thread.java:484)
What happened is: to support incremental output, Xalan-Java performs
the
transformation in a second thread while building the source tree inthe
main
thread. So Transformer.transform() creates a new thread to run the
transformer.run() method, which will write to weblogic's internal
ServletOutputStreamImpl, and in the end calls flush() on it.
ServletOutputStreamImpl determines that the headers haven't been written
yet, and the headers need to be written before any servlet output, so
it
calls ServletResponseImpl.writeHeaders(), which eventually calls
ResponseHeaders.setDateHeader(). The last method assumes the thread
is
weblogic's internal ExecuteThread and tries to cast the thread as such,
maybe to get the date from it. But the thread is a plain java.lang.Thread
created by xalan, thus we get the java.lang.ClassCastException:
java.lang.Thread
This suggests a second workaround: call ServletResponse.flushBuffer()
before any xalan stuff, which will force the headers to be written in
weblogic's ExecuteThread. The shortcoming of this is that this will
cause
the response to be commited, and if the xalan stuff throws exception
you can
not forward to another page.
Another thing is that xalan should not directly call flush() on
ServletOutputStreamImpl at all. I will report it to xalan and see if
they
consider that a bug. If they fix that then we have a third workaround:
set
the buffer size of ServletResponse big enough to accomodate everything
including the xslt outputs, so the ServletOutput does not need to be
flushed
during xalan code.
I do not consider this problem a weblogic bug, since the servlet container
has to right to expect any thread inside it to be its own. Serlvet2.2
spec
says:
1.2 What is a Servlet Container?
A Servlet Container may place security restrictions on the environment
that
a servlet executes in. In
a Java 2 Platform Standard Edition 1.2 (J2SE) or Java 2 Platform Enterprise
Edition 1.2 (J2EE)
environment, these restrictions should be placed using the permission
architecture defined by Java 2
Platform. For example, high end application servers may limit certain
action, such as the creation of
a Thread object, to insure that other components of the container are
not
negatively impacted.
Weblogic should explicitly warn the developers that creating threads
inside
the servlet container may have adverse effects, the same kind of problem
we
are having. (or maybe they already did somewhere in their documentation?)
On the xalan side, I would suggest them to either give the option to
switch
the two threads, or to give the option to buffer the output and write
it out
in the main thread, which is exactly what you did in your first workaround.
Any comments or thoughts on the subject are welcome.
-- Chuck Zhao
"MK Parini" <[email protected]> wrote in message
news:[email protected]...
I found, what I think to be a bug, and a work-around for it.
When doing an XSLT Transformation, you must specify a StreamResult
to which to write the output. I was doing my transformation in
a
servlet so I was writing my output to the HttpResponse
(The variable res is a javax.servlet.http.HttpServletResponse
object)
StreamResult htmlTarget = new StreamResult(res.getWriter());
If I use this, when I perform the transformation using the TRAX
APIs,
InputStream xslFile = context.getResourceAsStream(fileName);
TransformerFactory tFactory = TransformerFactory.newInstance();
Templates xslTemplates = tFactory.newTemplates(new StreamSource(xslFile));
transformer = xslTemplates.newTransformer();
transformer.transform(xmlSource, htmlTarget);
I receive the ClassCastException from the class
weblogic.servlet.internal.ResponseHeaders.setDateHeader(ResponseHeaders.java
:273),
as seen in my previous posting.
I discovered, if I write my output to a StringBuffer, and then
I write
the StringBuffer to the HttpResponse, I do not get the ClassCastException.
For example,
StringWriter myWriter = new StringWriter(2400);
StreamResult htmlTarget = new StreamResult(myWriter);
<Same transformation code as above>
myWriter.close();
PrintWriter out = res.getWriter();
out.print(myWriter.toString());
Is this a bug in the weblogic internal servlet class or am I just
missing something?
Also, one concern that I have with the workaround is that it might
hurt performance.
Any comments or thoughts on the subject are welcome.

I am unable to launch my illustrator 5.5 or 6. It is asking me to instal Java SE 6. When i go to the website it installs java 8. How do I get Java SE 6. to use my illustrator.

I am unable to launch my illustrator 5.5 or 6. It is asking me to instal Java SE 6. When i go to the website it installs java 8. How do I get Java SE 6. to use my illustrator?

Prompted to install Java SE 6 Runtime | Mac OS 10.9
Mylenium

I have an Apple Powerbook G4, and my monitor doesn't function. I have an external display Monitor, however it's stuck in extended screen mode. How do I get it to mirror or duplicate the display without use of the on-board?

As i had said, I have an Apple Powerbook G4, and my monitor doesn't function. I have an external display Monitor, however it's stuck in extended screen mode. How do I get it to mirror or duplicate the display without use of the on-board? Is there a Fn key combo i'm missing or is the issue more serious then i realize? any and all help and hints would be greatly apprichiated, thanks in advance.
-Powerbook User

The PowerBooks have an F-key that toggles mirrored and extended mode. My PB is loaned out right now but I think it was f7. The keycap has an icon on two overlapping rectangles, as I recall.
EDIT: Yes! Found a pdf of the PB manual it shows F7 is the toggle:

'java.lang.InternalError: undefined opcode' when startup weblogic web server

hi,All
          I found a very strange error message when I startup weblogic server
          please check the following attachment.
          Fri Sep 27 17:11:09 EDT 2002:<I> <ServletContext-General> *.jsp: init
          A nonfatal internal JIT (3.10.107(x)) error 'Structured
          Exception(c0000005)' has occurred in :
          'jspclasses/_onlane/_jsp/_consignment/__consignmentsearchpage._jspService
          (Ljavax/servlet/http/Htt
          pServletRequest;Ljavax/servlet/http/HttpServletResponse;)V':
          Interpreting method.
          Please report this error in detail to
          http://java.sun.com/cgi-bin/bugreport.cgi
          Fri Sep 27 17:11:09 EDT 2002:<E> <ServletContext-General> Servlet failed
          with Exception
          java.lang.InternalError: undefined opcode
          at
          at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:120)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:138)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java,
          Compi
          led Code)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:905)
          at
          weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:
          269)
          at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:391)
          at
          weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:273)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java,
          Compiled Code)
          I use weblogic 5.1 sp 11 with JDK1.2.2_007 on WinNT2000 Advanced server
          environment.
          Did anyone meet this problem before?
          It looks to me the JIT found an unexpected error in one of my jsp page,
          but I check this jsp page, it looks normal and work fine even JIT
          compliant it.
          Any help would be very appreciated.
          thanks,
          Roy


Hi,Ann
          Thanks for your help.
          Roy
          Ann Cao wrote:
          >Hello Roy,
          >
          >It sounds like a JIT problem. The version of SDK you are using is not certified for WAS 5.1
          >on Windows 2000 Advanced server. Please try a certified SDK. For certification information,
          >please see http://e-docs.bea.com/wls/certifications/certifications/win2000.html#40242.
          >
          >Regards,
          >Ann Cao
          >Developer Relations Engineer
          >BEA Support
          >
          >Roy Wu wrote:
          >
          >
          >
          >>hi,All
          >>I found a very strange error message when I startup weblogic server
          >>please check the following attachment.
          >>----------------
          >>Fri Sep 27 17:11:09 EDT 2002:<I> <ServletContext-General> *.jsp: init
          >>A nonfatal internal JIT (3.10.107(x)) error 'Structured
          >>Exception(c0000005)' has occurred in :
          >>
          >>'jspclasses/_onlane/_jsp/_consignment/__consignmentsearchpage._jspService
          >>(Ljavax/servlet/http/Htt
          >>pServletRequest;Ljavax/servlet/http/HttpServletResponse;)V':
          >>Interpreting method.
          >> Please report this error in detail to
          >>http://java.sun.com/cgi-bin/bugreport.cgi
          >>
          >>Fri Sep 27 17:11:09 EDT 2002:<E> <ServletContext-General> Servlet failed
          >>with Exception
          >>java.lang.InternalError: undefined opcode
          >> at
          >> at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
          >> at
          >>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:120)
          >> at
          >>weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:138)
          >> at
          >>weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java,
          >>Compi
          >>led Code)
          >> at
          >>weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:905)
          >> at
          >>weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:
          >>269)
          >> at
          >>weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:391)
          >> at
          >>weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:273)
          >> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java,
          >>Compiled Code)
          >>---------------------------
          >>
          >>I use weblogic 5.1 sp 11 with JDK1.2.2_007 on WinNT2000 Advanced server
          >>environment.
          >>Did anyone meet this problem before?
          >>It looks to me the JIT found an unexpected error in one of my jsp page,
          >>but I check this jsp page, it looks normal and work fine even JIT
          >>compliant it.
          >>Any help would be very appreciated.
          >>
          >>thanks,
          >>
          >>Roy
          >>
          >>
          >
          >--
          >Regards,
          >Ann
          >Developer Relations Engineer
          >BEA Support
          >
          >
          >
          >
          [att1.html]

Weblogic MQ :java.lang.ClassNotFoundException: Failed to load class weblog

Hi
I am getting this error in Log
JMSException: weblogic.messaging.dispatcher.DispatcherException: java.rmi.UnmarshalException: Problem finding error class; nested exception is:
java.lang.ClassNotFoundException: Failed to load class weblogic.messaging.kernel.KernelException
Please help me to find out possible root cause for this errorstack.
Thanks
Edited by: 906163 on Jan 5, 2012 5:29 AM

Hi,
This is not the forum for WebLogic Messaging, i.e., JMS. This is the forum for Oracle MessageQ, and pure standalone messaging product similar to IBM MQ Series.
Regards,
Todd Little
Oracle Tuxedo Chief Architect

Java.lang.ClassCastException: Cannot narrow remote object weblogic.rmi.inte

Hi,
I am trying to deploy ejb3.0 on weblogic 10 server. I am able to find the JNDI name of the stateless session bean correctly, but getting an exception while narrowing it down. My ejb3.0 client is a standalone java client. I am trying to access the stateless session ejb3.0 bean.Please help me. i have been trying it for many days.
thanks in advance,
Sanjeev
[sanpraka@localhost certEjb]$ java -cp ./:/usr/weblogic/bea/wlserver_10.0/server/lib/weblogic.jar:/usr/weblogic/bea/wlserver_10.0/server/lib/wlclient.jar com.titan.clients.Client
Object is weblogic.rmi.internal.BasicRemoteRef - hostID: '5337880647112897730S:127.0.0.1:[7001,7001,-1,-1,-1,-1,-1]:wl_server:examplesServer', oid: '302', channel: 'null'
java.lang.ClassCastException: Cannot narrow remote object weblogic.rmi.internal.BasicRemoteRef - hostID: '5337880647112897730S:127.0.0.1:[7001,7001,-1,-1,-1,-1,-1]:wl_server:examplesServer', oid: '302', channel: 'null' to com.titan.travelagent.TravelAgentRemote
at weblogic.corba.server.naming.ReferenceHelperImpl.narrow(ReferenceHelperImpl.java:206)
at weblogic.rmi.extensions.PortableRemoteObject.narrow(PortableRemoteObject.java:88)
at weblogic.iiop.PortableRemoteObjectDelegateImpl.narrow(PortableRemoteObjectDelegateImpl.java:32)
at javax.rmi.PortableRemoteObject.narrow(Unknown Source)
at com.titan.clients.Client.main(Client.java:24)
[sanpraka@localhost certEjb]$

We have a similar problem. We have a web application (on server A) that invokes an EJB on a remote server (server B). This works fine, until we deploy another web application to server A at which point the existing web application starts to throw java.lang.ClassCastException when narrowing the remote EJB interface. The exception starts to be thrown at the moment the latter web application is deployed - start is not required.
The latter web application contains (actually in APP-INF/lib) the old version of the EJB remote interface, that somehow gets to be loaded into the classpath of the existing web application. The solution is to delete the old version of the EJB remote interface from APP-INF/lib of the latter web application (we didn't need it anyway), but it would be interesting to know in which circumstances classes can get mixed between enterprise applications.
I failed to reproduce the error in simple scenario, so this does not happen always.

How can i get system variable using java

Hi,
I just want to know how can i get system variables using java code.
for example i want to get the the date for today or i want to get the number of processes that's running.
Thanks alot

Hi,
I just want to know how can i get system variables
using java code.
for example i want to get the the date for today or i
want to get the number of processes that's running.
Thanks alotSome generic "system variables" are available though Java, usually through the System class.
Date today = new Date();
is instantiated with the current date and time.
Other system values, like environment values, should be passed to java through the command line (-D option) by setting system properties.
Finally, platform specific values like the number of processes running will have to be written in platform specific code and executed by JNI (java native interface).
Java is platform or system agnostic. Common system values, like time, are implemented. Hopefully you won't need platform specific values.

I've extended java.lang.Thread. How do I get WebLogic to use my version?

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