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Re: More Info - Re: Registering servlets for file types.

From: Benoit Mahe <Benoit.Mahe@sophia.inria.fr>
Date: Thu, 23 Jul 1998 16:47:07 +0200
Message-Id: <199807231447.QAA23323@ender.inria.fr>
To: "P. R. Harindranath" <hary@wipinfo.soft.net>
cc: mombasa@ptolemy.arc.nasa.gov, www-jigsaw@w3.org, "Suryaprakash K.S." <suri@wipinfo.soft.net>
"P. R. Harindranath" writes:

> > > From: Benoit Mahe <Benoit.Mahe@sophia.inria.fr>
> > > Subject: Re: Registering servlets for file types.
> > >
> > >   Yes you can configure an indexer to index file with .class extension
> > > as servlets. Create a new indexer (SampleResourceIndexer[1]), and add
> > > a ServletWrapper (with its ServletWrapperFrame) called "class" in the
> > > extensions node of your new indexer. See [2]
> >
> > > [1] org.w3c.tools.resources.indexer.SampleResourceIndexer
> > > [2] /Doc/User/indexers.html
> > --------------------------
> >
> >   Did you ever get this working ?
> >
> >   If so I'd be interested in knowing what the trick was. I mean made the
> >   servlet-indexer, just as per instructions set out here and in other mail
> >   that Benoit obliged me with. Only to find the following error:
> >
> >
> 
> > > org.w3c.jigsaw.servlet.ServletWrapper@/Servlets/SnoopServlet.class: unabl
> e to initialize servlet, exception: null
> > > org.w3c.jigsaw.servlet.ServletWrapper@/Servlets/SessionServlet.class: una
> ble to initialize servlet, exception: null
> 
> The error is caused by a NullPointerException
> java.lang.NullPointerException
>         at javax.servlet.GenericServlet.log(GenericServlet.java:116)
>         at javax.servlet.GenericServlet.init(GenericServlet.java:151)
>         at org.w3c.jigsaw.servlet.ServletWrapper.launchServlet(ServletWrapper
> .java:283)


 This error could occurs if the DirectoryResource (servlet's parent) 
 has no ServletDirectoryFrame. Could you check it?

 Benoit.


- Benoît Mahé -------------------------------------------------------
                      World Wide Web Consortium (W3C)
                    Architecture domain - Jigsaw Team           

  http://www.w3.org/People/Mahe - bmahe@w3.org - +33.4.92.38.79.89 
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Received on Thursday, 23 July 1998 10:51:13 GMT

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