| Author |
Message
|
| TheDude |
 Posted: Mon Oct 21, 2002 8:48 am Post subject: java.lang.NoClassDefFoundError: com/ibm/mq/MQException |
 |
|
Apprentice
Joined: 21 Oct 2002
Posts: 31
|
I am trying to execute an MQPut program in Binding mode. The code compiles cleanly but I get:
java.lang.NoClassDefFoundError: com/ibm/mq/MQException
when I try to execute.
Here is my Classpath and Path respectively:
%MQ_JAVA_INSTALL_PATH%;%J2EE_HOME%\lib\j2ee.jar;
C:\Program Files\IBM\Application Developer Integration Edition\jre\lib;
C:\j2sdk1.4.1\bin\;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGCLIENT.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGSERVER.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CICSJ2EE.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGSAMPLES.JAR;%TOMCAT%\lib\servlet.jar;
C:\Program Files\IBM\MQSeries\Java\lib;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.jar;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.iiop.jar;
C:\Program Files\IBM\MQSeries\Java\lib\connector.jar;
C:\Program Files\IBM\MQSeries\Java\samples\base
PATH
%J2EE_HOME%\lib\j2ee.jar;.;
%TOMCAT_HOME%\webapps\sampleWEB-INF\classes;
%SYSTEMROOT%\SYSTEM32;
%SystemRoot%;%SystemRoot%\System32\Wbem;
C:|j2sdk1.4.1\bin;
C:\TNGSD\BIN;C:\Program Files\IBM\Trace Facility;
C:\Program Files\Personal Communications;
C:\Program Files\MQSeries\tools\c\samples\bin;
C:\Program Files\MQSeries\bin;
C:\Program Files\IBM\IBM CICS Transaction Gateway\BIN;
C:\j2sdk1.4.1\bin\;
%CLASSPATH%;
C:\Program Files\IBM\MQSeries\Java\lib
I am running on Win2k with MQSeries 5.2 and MA88. I know this must be a CLASSPATH issue but I cannot figure out where.
Pleeeaase Heeelp! |
|
| Back to top |
|
 |
| bower5932 |
| Posted: Mon Oct 21, 2002 9:13 am Post subject: |
|
|
Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
|
| This is probably caused by jta.jar or connector.jar not being in your classpath. You can search this site and you should find a hit that can tell you exactly which one. |
|
| Back to top |
|
|
| TheDude |
| Posted: Mon Oct 21, 2002 9:40 am Post subject: |
|
|
Apprentice
Joined: 21 Oct 2002
Posts: 31
|
I added jta.jar to my CLASSPATH and it still doesn't work. What else could I be missing? Thanks for your help.
CLASSPATH
%J2EE_HOME%\lib\j2ee.jar;
C:\Program Files\IBM\Application Developer Integration Edition\jre\lib;
C:\j2sdk1.4.1\bin\;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGCLIENT.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGSERVER.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CICSJ2EE.JAR;
C:\Program Files\IBM\IBM CICS Transaction Gateway\Classes\CTGSAMPLES.JAR;
%TOMCAT%\lib\servlet.jar;
C:\Program Files\IBM\MQSeries\Java\lib;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.jar;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.iiop.jar;
C:\Program Files\IBM\MQSeries\Java\lib\connector.jar;
C:\Program Files\IBM\MQSeries\Java\samples\base;
C:\Program Files\IBM\MQSeries\Java\lib\jta.jar |
|
| Back to top |
|
|
| RogerLacroix |
| Posted: Mon Oct 21, 2002 8:15 pm Post subject: |
|
|
Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
|
|
| Back to top |
|
|
| nimconsult |
| Posted: Mon Oct 21, 2002 10:42 pm Post subject: |
|
|
Master
Joined: 22 May 2002
Posts: 268
Location: NIMCONSULT - Belgium
|
Hi "TheDude",
I do not see your problem in the CLASSPATH, I have the following CLASSPATH which works successfully:
CLASSPATH=
.;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.jar;
C:\Program Files\IBM\MQSeries\Java\lib\connector.jar;
C:\Program Files\IBM\MQSeries\Java\lib\jta.jar;
C:\Program Files\IBM\MQSeries\Java\lib;
C:\Program Files\JASMQ\lib\be.nimconsult.jasmq.jar;
C:\Program Files\JASMQ\lib\be.nimconsult.queue.jar;
C:\Program Files\JASMQ\samples\bin
I suppose that you are sure of your installation path?
I do not think that adding com.ibm.mqbind.jar to CLASSPATH is the problem. In fact the documentation recommends to avoid using it.
The problem might come from your path which looks very complex: you are adding the CLASSPATH content in the PATH variable? I am not sure that Windows appreciates seeing JAR files in the path. Could you simplify it and only include the "C:\Program Files\IBM\MQSeries\Java\lib" folder?
_________________
Nicolas Maréchal
Senior Architect - Partner
NIMCONSULT Software Architecture Services (Belgium)
http://www.nimconsult.be |
|
| Back to top |
|
|
| bower5932 |
| Posted: Tue Oct 22, 2002 10:31 am Post subject: |
|
|
Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
|
For what it is worth, here is my CLASSPATH:
set classpath=.;
c:\mqseries\java\lib\com.ibm.mqbind.jar;
c:\MQseries\java\lib\com.ibm.mq.jar;
c:\MQseries\java\lib\com.ibm.mqjms.jar;
c:\MQSeries\java\lib\jms.jar;
c:\mqseries\java\lib\jndi.jar;
c:\mqseries\java\lib;
c:\mqseries\java\lib\providerutil.jar;
c:\mqseries\java\lib\fscontext.jar;
c:\mqseries\java\lib\jta.jar;
c:\mqseries\java\lib\connector.jar;
I'd suggest moving the CTG jar files to the end of your CLASSPATH. Although, this shouldn't make a difference. |
|
| Back to top |
|
|
| RogerLacroix |
| Posted: Tue Oct 22, 2002 6:38 pm Post subject: |
|
|
Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
|
Hi,
I don't want to start a war but I strongly disagree with 2 points from Nicolas' post.
First, com.ibm.mqbind.jar IS required to do binding mode connection to a queue manager (not required for client mode).
Secondly, C:\Program Files\IBM\MQSeries\Java\lib (just the directory - not jar files) IS required to be in the Windows PATH for binding mode because the Java\lib directory has the required MQ DLL (e.g mqjbnd04.dll - MA88 April 2002).
I just did a test of removing com.ibm.mqbind.jar from my classpath and tried to connect in binding mode to a queue manager. Here is the error that I got:
| Code: |
| java.lang.NoClassDefFoundError: com/ibm/mq/MQException |
"TheDude", hope that helps.
later
Roger...
_________________
Capitalware: Transforming tomorrow into today.
Connected to MQ!
Twitter |
|
| Back to top |
|
|
| nimconsult |
| Posted: Tue Oct 22, 2002 11:02 pm Post subject: |
|
|
Master
Joined: 22 May 2002
Posts: 268
Location: NIMCONSULT - Belgium
|
Hello Roger,
I do not want to make war neither 
First regarding the PATH variable, I do not see where we disagree because I said the same thing. The lib folder MUST be in the PATH and I asked TheDude to remove the references to all jar files from the PATH.
Regarding com.ibm.mqbind.jar, I am honnestly surprised that you cannot run without it. I do not have this jar file in my classpath and it works perfectly. May be have we installed different versions of the MA88 support pac? Mine is released 31Mar02 (see readme.txt).
I read the "MQ Series using Java" manual, ninth edition (February 2002) and it textually says (at the beginning of Chapter 2, installation procedure):
| Quote: |
com.ibm.mq.jar: This code includes support for all the connection options.
com.ibm.mqbind.jar: this code supports only the bindings connection and is not supplied or supported on all platforms. We recommend that you do not use it in any new applications. |
No war but I would like to have your opinion on the question: is com.ibm.mqbind.jar required in the classpath?
With Kind Regards  ,
_________________
Nicolas Maréchal
Senior Architect - Partner
NIMCONSULT Software Architecture Services (Belgium)
http://www.nimconsult.be |
|
| Back to top |
|
|
| TheDude |
| Posted: Wed Oct 23, 2002 7:04 am Post subject: |
|
|
Apprentice
Joined: 21 Oct 2002
Posts: 31
|
All,
Thank you so much for all of your input, you have helped tremendously. I have edited my PATH and CLASSPATH variables and now everything works like a charm(these things are very tempermental).
PATH:
C:\Program Files\IBM\MQSeries\Java\lib;
C:\j2sdk1.4.1\bin\;
CLASSPATH:
.;
%J2EE_HOME%\lib\j2ee.jar;
%TOMCAT%\lib\servlet.jar;
C:\Program Files\IBM\Application Developer Integration Edition\jre\lib;
C:\j2sdk1.4.1\bin\;
C:\Program Files\IBM\MQSeries\Java\lib\;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.jar;
C:\Program Files\IBM\MQSeries\Java\lib\com.ibm.mq.iiop.jar;
C:\Program Files\IBM\MQSeries\Java\lib\connector.jar;
C:\Program Files\IBM\MQSeries\Java\samples\base\;
C:\Program Files\IBM\MQSeries\Java\lib\jta.jar;
C:\Program Files\IBM\MQSeries\Java\lib\fscontext.jar;
C:\Program Files\IBM\MQSeries\Java\lib\jndi.jar
I think I may even be able to omit iiop.jar,fscontext.jar and jndi.jar but I'll try that later. Once again, thanks to all of you.
BTW, do any of you know how big the message buffer for the MQMessage object is ? I am receiving quite a large reply from my message client and I get a java.io.EOFException. I'm assuming that the size of the message buffer in the MQMessage object needs to be increased.
Thanks. |
|
| Back to top |
|
|
| bower5932 |
| Posted: Wed Oct 23, 2002 12:46 pm Post subject: |
|
|
Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
|
| My two cents on mqbind.jar...I just took it out of my classpath and my program worked correctly. I vaguely remember that with the first release of MQ java, you had to specify either client or bindings jar files. MQ wasn't able to figure out what you were doing. However, I thought that a later release required just the mq.jar and MQ would figure out if it had to load the mqbind.jar. There may have been a comment in one of the iterations of the Using Java manual that is long gone by now. |
|
| Back to top |
|
|
| RogerLacroix |
| Posted: Wed Oct 23, 2002 9:28 pm Post subject: |
|
|
Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
|
Hi,
My com.ibm.mq.jar (and others) are dated 2002/03/29.
I just did a "binding mode" test again and if I remove mqbind.jar then I get the error. (Win2000 platform)
I would agree with IBM's comment, because MA88 for OS/390 (USS) does not have mqbind.jar file.
Bower, in your Java app., how did you connect to the queue manager? Client or binding mode? (e.g. Did you specify hostname/port#/channel name). What platform did you test on?
later
Roger...
_________________
Capitalware: Transforming tomorrow into today.
Connected to MQ!
Twitter |
|
| Back to top |
|
|
| nimconsult |
| Posted: Wed Oct 23, 2002 10:47 pm Post subject: |
|
|
Master
Joined: 22 May 2002
Posts: 268
Location: NIMCONSULT - Belgium
|
Hi Roger,
Strange?
I am also running W2K Professional, MQ5.2, MA88 dated March 2002. My com.ibm.mq.jar and com.ibm.mqbind.jar are also dated 2002-03-29.
I connect in binding mode, using standard base Java coding, and it works perfectly:
| Code: |
try
{
MQQueueManager qm = new MQQueueManager("");
MQQueue q = qm.accessQueue("LQ.TEST", MQC.MQOO_OUTPUT);
MQMessage m = new MQMessage();
m.writeString("Hello World");
m.format = MQC.MQFMT_STRING;
q.put(m);
q.close();
qm.disconnect();
}
catch (MQException e)
{
System.out.println("MQ Error: " + e);
} |
My classpath is the one I posted earlier.
What else could be different?
_________________
Nicolas Maréchal
Senior Architect - Partner
NIMCONSULT Software Architecture Services (Belgium)
http://www.nimconsult.be |
|
| Back to top |
|
|
| bower5932 |
| Posted: Thu Oct 24, 2002 10:09 am Post subject: |
|
|
Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
|
| My program is a JMS program. I'm using one of two TCFs. One uses a transport of CLIENT and the other uses a transport of BIND. I'm running on a Windows 2000 machine with MQ 5.2. |
|
| Back to top |
|
|
| bower5932 |
| Posted: Thu Oct 24, 2002 10:15 am Post subject: |
|
|
Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
|
| I just tried it with straight java in both client and bindings mode. I didn't need to have the mqbind.jar in my classpath to get it to work. |
|
| Back to top |
|
|
| kingdon |
| Posted: Fri Oct 25, 2002 12:19 am Post subject: |
|
|
Acolyte
Joined: 14 Jan 2002
Posts: 63
Location: UK
|
Hi,
The com.ibm.mqbind.jar is a little piece of history. In early releases an application would either import the com.ibm.mqbind.* classes to connect via bindings, or the com.ibm.mq.* classes to connect via a client. Later releases made the connection configurable at runtime so that it wasn't necessary to recompile an application just to switch connection type. Both routes are now supported via com.ibm.mq. The com.ibm.mqbind.jar file that ships with current releases is just a thin wrapper back to com.ibm.mq so that old applications written to the com.ibm.mqbind package can still be run without changes. I would recommend all new applications to be written to the com.ibm.mq package. If you have an old application in production using com.ibm.mqbind then you might get a small performance improvement by updating it to use com.ibm.mq.
Cheers,
James. |
|
| Back to top |
|
|
|
|
