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Subject: SOLUTION :
 =?iso-8859-1?Q?R=E9f=2E_=3A_R=E9f=2E_=3A_Re=3A_R=E9f=2E_=3A_Re=3A_?=
 =?us-ascii?Q?ClassNotFoundException?= in thread
To: tomcat-user@jakarta.apache.org
Message-ID: <OF328279F8.8B867D4D-ONC1257014.005B39BD@fr.nexans.com>
From: Cyril.ZEKSER@nexans.com
Date: Thu, 2 Jun 2005 18:42:00 +0200
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Yeepeh !!!

I've found the solution :

All I needed to do was changing the loading of the class by :

      Object jobClass =3D this.getClass().getClassLoader().loadClass(
getClassName() ).newInstance();
      //Object jobClass =3D Class.forName( getClassName() ).newInstance=
();

I guess the OS and the JVM behave differently from HP-UX to Linux, now =
the
class is found in the Thread.  I don't know why the previous code was
working in the previous platform...

If there is a better wy to write this, please tell me  :)

Hope this help others people...


                                                                       =
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                      Cyril ZEKSER                                     =
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                                               Pour :   "Tomcat Users L=
ist" <tomcat-user@jakarta.apache.org>                          =20
                      02/06/2005 17:02         cc :                    =
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                                               Objet :  R=E9f. : Re: R=E9=
f. : Re: ClassNotFoundException in thread(Document link: Cyril   =20
                                               ZEKSER)                 =
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                                                               =20


Thanks for your answer but :

> is there a static initialisation code in
>
com.nexans.statistic.client.model.send.intranet.handler.CreateFileProce=
dure
> ? or static properties whose values are taken from other methods?

> If anything in the static initialisation of class
>
com.nexans.statistic.client.model.send.intranet.handler.CreateFileProce=
dure

> throws an Exception, the class wil be considered as non-existent. (wh=
ich
is
> quite normal, sometinh that could not be create does not exist)

In fact, there is one static property :

  private static Logger myLog =3D Logger.getLogger( CreateFileProcedure=
.class
);

but, as you mentionned in another mail, the Log4j.jar is not in common.=

this jar is in WEB-INF/lib (i've double checked ...  kindda paranoid no=
 ?
:-)
The line that crashed is the following :

      Object jobClass =3D Class.forName( getClassName() ).newInstance()=
;

where getClassName() returns
"com.nexans.statistic.client.model.send.intranet.handler.CreateFileProc=
edure"

The problem is when the Thread try to find the class, because a test JS=
P
can execute this without Exception.  What are the possible changes betw=
een
the two platforms mentioned regarding threads ?   (RHAS4 with JDK 1.4.2=

and HP-UX11 with JDK 1.4.1).

Java has enough memory, and is started in -server mode with -Xmx512m
option. Both config files  (from both platform) are identical - except =
of
course the directories.

I've though also of a ISO-xxx encoding instead of UTF-8 that could caus=
e
the problem, but not...

This code is a year old, and was working fine in the old platform - tha=
t
crashed unfortunately... so I had to migrate. Copying the JAR seems not=

enough to work properly.

Any other idea for me to explore  ?


=


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