Are you sure that the shared library can be found in the environmen that
the servlet is running. For instance, you may need to set something
like LD_LIBRARY_PATH=path/your/sharedlibrary/is/in
Mike
> -----Original Message-----
> From: Brian S. Wallace [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, March 04, 1999 8:53 AM
> To: [EMAIL PROTECTED]
> Subject: JServ/JNI Problem
>
> Hi:
>
> JServ installation: Stronghold 2.4/Apache 1.30, JServ 1.0b2, Oracle 7
> JDBC
> Thin Drivers 7.3.4, JDK 1.1.7B, JSDK 2.0, DEC Unix 4.0D.
>
> I have a developer who is having a problem using JNI with JServ. From
> our
> emails:
>
> Developer
> ---------
> I am still having trouble with JNI from a servlet. Here is what I
> found in
> the FAQ - what do you think? It sounds like the servlet's directory
> must be
> in the class path (/data/httpd/jserv/cicmenu).
>
> ++++++++++++++++++++++++++
> Why do I keep getting UnsatisfiedLinkError? (or) Why won't my servlets
> using native code run?
>
> Servlets using native libraries must be put in the classpath,
> otherwise you
> will get a java.lang.UnsatisfiedLinkError because in JDK1.1 a class
> with
> native methods can't be loaded by custom class loaders (servlet class
> loader).
> -----
>
> My Response
> -----------
> I've added the following statement to the zone_main.properties file:
>
> wrapper.classpath=/data/httpd/jserv/cicmenu
>
> See if this works. The only problem I see here is that this puts the
> class
> path into everyone's path. If it works, then I may need to put each
> project back into its own zone. I had problems doing this before.
> -----
>
> Developer
> ---------
> We are a little closer. It will now load the native library without
> bombing, but I can't execute the native function - internal server
> error. I
> am using the same techniques I used in the stand-alone Java
> application -
> which works - but doesn't from a servlet.
> -----
>
> Any general suggestions about using JNI with JServ? The developer is
> calling a C library to do some security related stuff.
>
> My concern here is that I had to add his class file to the class path.
> This makes it available to anyone in the zone, right? It looks like
> each
> developer needs thier own zone. What is everyone else doing to keep
> projects separated on a system? Another problem I ran into in setting
> multiple zones was that after I setup more than 2 zones, JServ
> wouldn't
> start up.
>
> Thanks,
>
>
> Brian S. Wallace
>
> Oak Ridge National Laboratory
> P. O. Box 2008, MS 6394
> Oak Ridge, Tennessee 37831-6394
>
> Voice (423) 576-3193
> Fax (423) 574-5323
>
> http://www-internal.ornl.gov/~xsw/
>
>
>
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