The -classic option doesn't help me. I tried it and saw the same results.
My installation of java may not have the classic environment (though no
error was emitted). Do you suggest we stick with 2.1.1 until a future
release can solve this problem (or some other solution is found)?
Thanks
Geoffrey A. Lowney
Senior Software Development Engineer
Recreational Equipment, Inc.
Phone 253-395-8164 Fax 253-437-7291
Pager 206-625-8477 [EMAIL PROTECTED]
[EMAIL PROTECTED] http://www.rei.com/
In order to draw a limit to thinking, we should have to think both sides
of this limit.
-- Ludwig Wittgenstein, Tractatus Logico-Philosophicus
> -----Original Message-----
> From: Andreas Mueller [mailto:[EMAIL PROTECTED]]
> Sent: Friday, June 29, 2001 2:14 PM
> To: [EMAIL PROTECTED]
> Subject: [developers] progarm hangs under 2.1.2
>
>
> We've experienced the same behavior, although we haven't
> changed anything
> there. The same program exits under NT but not under Unix
> (1.3.0 hotspot).
> We've checked all threads and they are terminating properly.
> We terminate the reader thread with socket.close() and
> additionally we do
> a hardcore stop() on the reader thread in connection.close().
> It hangs
> in read. But if we start the JVM with java -classic, the
> program exists
> properly!
>
> > "Thread-0" (TID:0x80033668, stillborn, sys_thread_t:0x30522840,
> > state:R,
> > native ID:0x405) prio=5: pending=java.lang.ThreadDeath
>
> As you see above, the Thread is death.
>
> --
> Andreas Mueller, IIT GmbH, Bremen/Germany, http://www.iit.de
> SwiftMQ - JMS Enterprise Messaging System, http://www.swiftmq.com
>
>
> -----Original Message-----
> From: Geoffrey Lowney <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Date: Fri, 29 Jun 2001 22:19:20 +0200
> Subject: [developers] progarm hangs under 2.1.2
>
> > Programs which seemed to work fine under 2.1.1 have strange problems
> > under
> > 2.1.2. For example, the program below is a simple test
> program which
> > creates a connection and then destroys the connection.
> Nothing else is
> > done. Under 2.1.1 the program runs fine. Under 2.1.2 the program
> > never
> > exits. It appears that the problem may be a swiftmq thread
> is hanging
> > (see
> > the javacore details below).
> >
> > I am not an expert at JMS or SwiftMQ (or even Java for that
> matter), so
> > it
> > is possible there are errors in my code (masked by 2.1.1 bugs?). I
> > would
> > appreciate suggestions regarding the steps the code uses to
> connect and
> > disconnect from the router.
> >
> > Any idea what is going on? Has anyone else seen problems
> with 2.1.2?
> > Some
> > of my other programs under 2.1.2 appear to have problems which also
> > seem to
> > be related to threads hanging (I see javacore output
> similar to what I
> > show
> > below).
> >
> > Thanks
> >
> > Geoffrey A. Lowney
> > Senior Software Development Engineer
> > Recreational Equipment, Inc.
> > Phone 253-395-8164 Fax 253-437-7291
> > Pager 206-625-8477 [EMAIL PROTECTED]
> > [EMAIL PROTECTED] http://www.rei.com/
> >
> > Here are the gory details of my test program and results...
> >
> > JVM version: J2RE 1.2.2 IBM build ca122-19991217
> > OS Level : AIX 4.3.3.0
> >
> > Here is the output from the program. It looks the same
> under 2.1.1 and
> > 2.1.2.
> >
> > $ java com.rei.mom.ConnectTest
> > main: entering go
> > main: entering connect
> > main: creating Context
> > main: Context created
> > main: creating QueueConnectionFactory
> > main: creating QueueConnection
> > main: creating QueueSession
> > main: creating Queue
> > main: starting QueueConnection
> > main: closing Context
> > main: leaving connect
> > main: entering disconnect
> > main: closing QueueSession
> > main: closing QueueConnection
> > main: leaving disconnect
> > main: leaving go
> > $
> >
> > Under 2.1.2, after the final message is displayed, I generated a
> > javacore.
> > Here is the thread that appears to be hanging (its the only one in R
> > state,
> > and the only one that references swiftmq):
> >
> > "Thread-0" (TID:0x80033668, stillborn, sys_thread_t:0x30522840,
> > state:R,
> > native ID:0x405) prio=5: pending=java.lang.ThreadDeath
> > at java.net.SocketInputStream.socketRead(Native Method)
> > at
> java.net.SocketInputStream.read(SocketInputStream.java:98)
> > at
> > java.io.BufferedInputStream.fill(BufferedInputStream.java(Compiled
> > Code))
> > at
> > java.io.BufferedInputStream.read(BufferedInputStream.java(Compiled
> > Code))
> > at
> > java.io.DataInputStream.readInt(DataInputStream.java(Compiled
> > Code))
> > at
> > com.swiftmq.tools.dump.Dumpalizer.construct(Dumpalizer.java(Compiled
> > Code))
> > at
> >
> com.swiftmq.jms.ConnectionImpl.readObject(ConnectionImpl.java(Compiled
> > Code))
> > at
> com.swiftmq.jms.ConnectionImpl.run(ConnectionImpl.java:424)
> > at java.lang.Thread.run(Thread.java:481)
> > ----- Native Stack -----
> > merge_into_successors
> > _pthread_event_wait
> > _cond_wait_local
> > _cond_wait
> > pthread_cond_wait
> > try_suspend
> > realObjAlloc
> > allocArray
> > utf2JavaString
> > jni_NewStringUTF
> > jni_ThrowNew
> > JNU_ThrowByName
> > NET_ThrowNew
> > NET_ThrowCurrent
> > Java_java_net_SocketInputStream_socketRead
> > mmisInvoke_OIIOO_IHelper
> > entryCmp
> >
> > Here is the test program (username, password and queuename removed):
> >
> > ///////////////////////////////////////////////////////////
> > package com.rei.mom;
> >
> > import javax.jms.*;
> > import javax.naming.*;
> > import java.util.*;
> > import com.rei.mom.*;
> >
> > public class ConnectTest {
> > public static final String QUEUECONFAC = "QueueConnectionFactory";
> > private String username = "******";
> > private String password = "******";
> > private String queueName = "*******";
> > private Context jndiContext = null;
> > private QueueConnectionFactory queueConnectionFactory = null;
> > private QueueConnection queueConnection = null;
> > private QueueSession queueSession = null;
> > private Queue queue = null;
> >
> > public static void main(String[] args) {
> > ConnectTest test = new ConnectTest();
> > test.go();
> > }
> >
> > public void go() {
> > System.out.println(Thread.currentThread().getName() +
> ": entering
> > go");
> > connect();
> > disconnect();
> > System.out.println(Thread.currentThread().getName() + ": leaving
> > go");
> > }
> >
> > public void connect() {
> > System.out.println(Thread.currentThread().getName() +
> ": entering
> > connect");
> > try {
> > if (jndiContext == null) {
> > Hashtable env = new Hashtable();
> >
> >
> env.put(Context.INITIAL_CONTEXT_FACTORY,"com.swiftmq.jndi.Init
> ialContex
> > tFact
> > oryImpl");
> >
> > env.put(Context.PROVIDER_URL,"smqp://localhost:4001/timeout=10000");
> > System.out.println(Thread.currentThread().getName() + ":
> > creating
> > Context");
> > jndiContext = new InitialContext(env);
> > System.out.println(Thread.currentThread().getName() + ":
> > Context
> > created");
> > }
> > if (queueConnection == null) {
> > if (queueConnectionFactory == null) {
> > System.out.println(Thread.currentThread().getName() + ":
> > creating
> > QueueConnectionFactory");
> > queueConnectionFactory = (QueueConnectionFactory)
> > jndiContext.lookup(QUEUECONFAC);
> > }
> > System.out.println(Thread.currentThread().getName() + ":
> > creating
> > QueueConnection");
> > queueConnection =
> > queueConnectionFactory.createQueueConnection(username,
> > password);
> > }
> > System.out.println(Thread.currentThread().getName() +
> ": creating
> > QueueSession");
> > queueSession = queueConnection.createQueueSession(false,
> > Session.AUTO_ACKNOWLEDGE);
> > System.out.println(Thread.currentThread().getName() +
> ": creating
> > Queue");
> > queue = (Queue) jndiContext.lookup(queueName);
> > System.out.println(Thread.currentThread().getName() +
> ": starting
> > QueueConnection");
> > queueConnection.start();
> > if (jndiContext != null) {
> > System.out.println(Thread.currentThread().getName() + ":
> > closing
> > Context");
> > jndiContext.close();
> > jndiContext = null;
> > }
> > } catch (Exception e) {
> > System.out.println(Thread.currentThread().getName() +
> > e.toString());
> > }
> > System.out.println(Thread.currentThread().getName() + ": leaving
> > connect");
> > }
> >
> > public void disconnect() {
> > System.out.println(Thread.currentThread().getName() +
> ": entering
> > disconnect");
> > try {
> > if (queueSession != null) {
> > System.out.println(Thread.currentThread().getName() + ":
> > closing
> > QueueSession");
> > queueSession.close();
> > }
> > if (queueConnection != null) {
> > System.out.println(Thread.currentThread().getName() + ":
> > closing
> > QueueConnection");
> > queueConnection.close();
> > }
> > if (jndiContext != null) {
> > System.out.println(Thread.currentThread().getName() + ":
> > closing
> > Context");
> > jndiContext.close();
> > }
> > } catch (Exception e) {
> > System.out.println(Thread.currentThread().getName() +
> > e.toString());
> > } finally {
> > queue = null;
> > queueSession = null;
> > queueConnection = null;
> > queueConnectionFactory = null;
> > jndiContext = null;
> > }
> > System.out.println(Thread.currentThread().getName() + ": leaving
> > disconnect");
> > }
> > }
> > ///////////////////////////////////////////////////////////
> >
> > ------------------------------------------------------
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> >
> >
> >
>
>
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