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From "Martin Gainty" <mgai...@hotmail.com>
Subject Re: Can't find classes in jar files in WEB-INF
Date Mon, 19 Feb 2007 03:21:47 GMT
can we see your <filter> and <filter-mapping> entries in your web.xml
M-
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----- Original Message ----- 
From: "aladdin" <aladdin@csunv.com>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Sunday, February 18, 2007 9:46 PM
Subject: Re: Can't find classes in jar files in WEB-INF


> Thanks for the tip!
> 
> I don't think I'd have a conflict with all the classes in my application.  
> Although some of my classes have common names, like user.java (compiled,
> of course, to user.class), they are all member of just one of three packages:
> infoisland, dbMgr, and utils, so I don't think the names are colliding.  
> Loading the app bombs out as tomcat is loading when it can't find my filter,
> CheckUser (makes sure users are logged in), which is in the infoIsland 
> package.
> 
> However, your comment is telling: "WEB-INF itself is not checked or scanned
> for .jar files at all."  So, if I make sure the WEB-INF/classes subdirectory 
> is empty, how do I tell tomcat to go get classes out of the 
> WEB-INF/lib/whatever.jar file?
> 
> Thanks.
> 
> On Sunday 18 February 2007 20:05, David Smith wrote:
>> It should be noted there are only a couple of places .jar files are
>> allowed in tomcat:
>>
>> 1. WEB-INF/lib
>> 2. common/lib of the tomcat installation directory
>>
>> WEB-INF itself is not checked or scanned for .jar files at all.  In
>> addition, any files in the classes directory will override their
>> equivalent in the lib directory.  This occurs regardless of it being in
>> WEB-INF/classes or common/classes
>>
>> As to the issue below, are you sure you don't have similar classes (in
>> name and package) in both common/lib and WEB-INF/lib?  Seems like
>> there's a classloader issue at work here.  Take a look at the
>> classloader howto at
>> http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html.  It
>> might offer some ideas.
>>
>> --David
>>
>> aladdin wrote:
>> > When I put my webapp.jar file in the WEB-INF directory, it doesn't find
>> > the app.  When I exploded it into the classes directory, and associated
>> > subdirectories, they are found fine, but I get this problem (the one
>> > below).
>> >
>> > This, it turns out, is triggered by the fact I have the webapp.jar file
>> > in the lib directory and all the classes unpacked in the classes
>> > directory (both under WEB-INF, of course).  Getting rid of the webapp.jar
>> > file in the lib directory solves the problem below, but now tomcat won't
>> > use that the jar file in the lib directory, even though when it's
>> > unpacked in the classes directory, he seems perfectly happy.  Is there
>> > some magic I need for tomcat to use .jar files in the WEB-INF/lib
>> > directory, like an entry in web.xml or server.xml?
>> >
>> > On Friday 16 February 2007 22:52, aladdin wrote:
>> >> I was getting a message like "SEVERE PersistenceManager persistence not
>> >> enabled", or something like that (I don't remember) so I disabled
>> >> (commented out) the Manager tag in server.xml that configured the
>> >> PersistenceManager. Now, I'm getting
>> >>
>> >> Feb 16, 2007 9:26:34 PM org.apache.catalina.loader.WebappClassLoader
>> >> modified INFO:     Additional JARs have been added
>> >> Feb 16, 2007 9:26:34 PM org.apache.catalina.core.StandardContext reload
>> >> INFO: Reloading this Context has started
>> >>
>> >> over and over in the log files.  Anyone know what's causing this?  I
>> >> thought maybe tomcat was restarting, but the PID doesn't change.  It
>> >> seems to work, but it's filling up my log files.
>> >>
>> >> TIA
>> >>
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> 
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