Re: Classloader - WEB-INF/lib
Can you post the actual relevant lines of code? Also, I suspect for
classes, Class.forName() is enough -- no need to find the class first w/
Classloader.getResource( "..." ).
--David
Albert Greinoecker wrote:
I'm sorry I just found out that the cause of the failure described below
lies one step before the class.forName-statement.
Before I'm trying to load the classes with
ClassLoader cld [...]
URL resource = cld.getResource('path/to/the/class/file.class');
so it's clear to me that this cannot work with class-files located
within a java-archive. But how can resources be loaded from jars this
way?
sorry for the last posting,
Albert
Am Mittwoch, den 10.10.2007, 08:59 -0400 schrieb David Smith:
Could you post more info -- e.g. tomcat version, jvm version, class
package and name you are trying to load, any relevant stack traces in
the logs, etc., ...
--David
Albert Greinoecker wrote:
Hi,
I have a problem concerning the classloader tomcat is using, When I try
to load a class dynamically, which is located witihn a jar-archive
under /WEB-INF/lib with class.forName(), an exception
is thrown. If the class is located at WEB-INF/classes, everything works
fine.
As classloader I am using:
Thread.currentThread().getContextClassLoader(); Should I use a different
one? What would be the best approach to solve this?
thx,
Albert
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RE: Classloader - WEB-INF/lib
Hi AlbertWhich classloader you want depends on where you loaded your jarTake a
look at
http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html
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recipient. Sender does not necessarily endorse content contained within this
transmission.> > I'm sorry I just found out that the cause of the failure
described below> lies one step before the class.forName-statement.> > Before
I'm trying to load the classes with > ClassLoader cld [...]> URL resource =
cld.getResource('path/to/the/class/file.class');> so it's clear to me that this
cannot work with class-files located> within a java-archive. But how can
resources be loaded from jars this> way?> > sorry for the last posting,>
Albert> > Am Mittwoch, den 10.10.2007, 08:59 -0400 schrieb David Smith:> >
Could you post more info -- e.g. tomcat version, jvm version, class > > package
and name you are trying to load, any relevant stack traces in > > the logs,
etc., ...> > > > --David> > > > Albert Greinoecker wrote:> > > > >Hi,> > >> >
>I have a problem concerning the classloader tomcat is using, When I try> > >to
load a class dynamically, which is located witihn a jar-archive> > >under
/WEB-INF/lib with class.forName(), an exception> > >is thrown.
If the class is located at WEB-INF/classes, everything works> > >fine.> > >> >
>As classloader I am using:> > >Thread.currentThread().getContextClassLoader();
Should I use a different> > >one? What would be the best approach to solve
this?> > >> > >thx,> > >Albert> > >> > >> >
>-> > >To
start a new topic, e-mail: users@tomcat.apache.org> > >To unsubscribe, e-mail:
[EMAIL PROTECTED]> > >For additional commands, e-mail: [EMAIL PROTECTED]> > >>
> > > > >> > > > > >
-> > To
start a new topic, e-mail: users@tomcat.apache.org> > To unsubscribe, e-mail:
[EMAIL PROTECTED]> > For additional commands, e-mail: [EMAIL PROTECTED]> > > >
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start a new topic, e-mail: users@tomcat.apache.org> To unsubscribe, e-mail:
[EMAIL PROTECTED]> For additional commands, e-mail: [EMAIL PROTECTED]>
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Re: Classloader - WEB-INF/lib
I'm sorry I just found out that the cause of the failure described below
lies one step before the class.forName-statement.
Before I'm trying to load the classes with
ClassLoader cld [...]
URL resource = cld.getResource('path/to/the/class/file.class');
so it's clear to me that this cannot work with class-files located
within a java-archive. But how can resources be loaded from jars this
way?
sorry for the last posting,
Albert
Am Mittwoch, den 10.10.2007, 08:59 -0400 schrieb David Smith:
> Could you post more info -- e.g. tomcat version, jvm version, class
> package and name you are trying to load, any relevant stack traces in
> the logs, etc., ...
>
> --David
>
> Albert Greinoecker wrote:
>
> >Hi,
> >
> >I have a problem concerning the classloader tomcat is using, When I try
> >to load a class dynamically, which is located witihn a jar-archive
> >under /WEB-INF/lib with class.forName(), an exception
> >is thrown. If the class is located at WEB-INF/classes, everything works
> >fine.
> >
> >As classloader I am using:
> >Thread.currentThread().getContextClassLoader(); Should I use a different
> >one? What would be the best approach to solve this?
> >
> >thx,
> >Albert
> >
> >
> >-
> >To start a new topic, e-mail: users@tomcat.apache.org
> >To unsubscribe, e-mail: [EMAIL PROTECTED]
> >For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> >
>
>
> -
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
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Re: Classloader - WEB-INF/lib
Could you post more info -- e.g. tomcat version, jvm version, class package and name you are trying to load, any relevant stack traces in the logs, etc., ... --David Albert Greinoecker wrote: Hi, I have a problem concerning the classloader tomcat is using, When I try to load a class dynamically, which is located witihn a jar-archive under /WEB-INF/lib with class.forName(), an exception is thrown. If the class is located at WEB-INF/classes, everything works fine. As classloader I am using: Thread.currentThread().getContextClassLoader(); Should I use a different one? What would be the best approach to solve this? thx, Albert - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Classloader - WEB-INF/lib
Hi, I have a problem concerning the classloader tomcat is using, When I try to load a class dynamically, which is located witihn a jar-archive under /WEB-INF/lib with class.forName(), an exception is thrown. If the class is located at WEB-INF/classes, everything works fine. As classloader I am using: Thread.currentThread().getContextClassLoader(); Should I use a different one? What would be the best approach to solve this? thx, Albert - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
