Web Application Server Lib folder?

[Sam Doder]

Under tomcat , jetty ,weblogic ,...etc
You put your jar files in the lib directory under WEB-INF .
But I am wondering if I create a folder under lib and add jar files to it will it process those jar files to as if they in the top lib folder.

I am trying to seperate the jar files out so I know which ones to update more easily but when I create a subdirectory under lib and start the server I get.

These error's

As you can see the classes/jar's need to be exactly in the lib folder not under it!

java.lang.NoClassDefFoundError: org/eclipse/birt/report/model/api/metadata/Valid
ationValueException
        at org.eclipse.birt.report.utility.ParameterAccessor.processWorkingFolde
r(ParameterAccessor.java:2582)
        at org.eclipse.birt.report.utility.ParameterAccessor.initParameters(Para
meterAccessor.java:1475)
        at org.eclipse.birt.report.listener.ViewerServletContextListener.context
Initialized(ViewerServletContextListener.java:56)
        at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.
java:540)
        at org.mortbay.jetty.servlet.Context.startContext(Context.java:135)
        at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.jav
a:1220)
        at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
510)
        at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448
)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection
.java:152)
        at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHan
dlerCollection.java:156)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection
.java:152)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
        at org.mortbay.jetty.Server.doStart(Server.java:222)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:977)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.mortbay.start.Main.invokeMain(Main.java:194)
        at org.mortbay.start.Main.start(Main.java:509)
        at org.mortbay.start.Main.main(Main.java:119)
Caused by: java.lang.ClassNotFoundException: org.eclipse.birt.report.model.api.m
etadata.ValidationValueException
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoade
r.java:375)
        at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoade
r.java:337)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        ... 25 more
2009-01-08 15:02:12.346::WARN:  failed ContextHandlerCollection@15db314
java.lang.NoClassDefFoundError: org/eclipse/birt/report/model/api/metadata/Valid
ationValueException
        at org.eclipse.birt.report.utility.ParameterAccessor.processWorkingFolde
r(ParameterAccessor.java:2582)
        at org.eclipse.birt.report.utility.ParameterAccessor.initParameters(Para
meterAccessor.java:1475)
        at org.eclipse.birt.report.listener.ViewerServletContextListener.context
Initialized(ViewerServletContextListener.java:56)
        at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.
java:540)
        at org.mortbay.jetty.servlet.Context.startContext(Context.java:135)
        at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.jav
a:1220)
        at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
510)
        at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448
)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection
.java:152)
        at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHan
dlerCollection.java:156)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection
.java:152)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
        at org.mortbay.jetty.Server.doStart(Server.java:222)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
        at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:977)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.mortbay.start.Main.invokeMain(Main.java:194)
        at org.mortbay.start.Main.start(Main.java:509)
        at org.mortbay.start.Main.main(Main.java:119)
Caused by: java.lang.ClassNotFoundException: org.eclipse.birt.report.model.api.m
etadata.ValidationValueException
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoade
r.java:375)
        at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoade
r.java:337)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        ... 25 more
2009-01-08 15:02:12.361::INFO:  Opened C:\jetty-6.1.9\jetty-6.1.9\logs\2009_01_0
8.request.log
2009-01-08 15:02:12.361::WARN:  failed HandlerCollection@1a68ef9
java.lang.NoClassDefFoundError: org/eclipse/birt/report/model/api/metadata/Valid
ationValueException
        at org.eclipse.birt.report.utility.ParameterAccessor.processWorkingFolde
r(ParameterAccessor.java:2582)
        at org.eclipse.birt.report.utility.ParameterAccessor.initParameters(Para
meterAccessor.java:1475)
        at org.eclipse.birt.report.listener.ViewerServletContextListener.context
Initialized(ViewerServletContextListener.java:56)
        at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.
java:540)

What I want to know is how to seperate the birt jar files from the other jar files I have?

[Paul Clapham]

Sam Doder wrote:I am trying to seperate the jar files out so I know which ones to update more easily...

Well, as you already know (by experiment) is that you have to put all your jar files in the WEB-INF/lib directory. I'm not sure what you mean by "update more easily" but couldn't you just write the names of those jar files on a piece of paper and tack it to your bulletin board?

[Sam Doder]

Yes , But it is not easy to constantly write down every jar need to go their when people are constantly modifying and updating their jar files.

I am working at a company that finds it really hard to keep track of what version of a jar file it needs. Some times the applications won't run correctly with out the correct jar file version.
Yet other applications won't run with older version of jar files.

I just want an easy way to keep track of what the minimal jar files you need.

What I thought is a sub folder under the WEB-INF/lib file would load the same as just being in the WEB-INF/lib top level folder. That way I could seperate out the different jar files into sub-folders to keep track of the versions ,...etc etc

My be it works for only some web application servers. Wondering if their is any other folders I could create under WEB-INF/ to work the same as lib folder.

[Joe Ess]

Do you use source control (if you don't you should!)? For the projects I manage, I check in the entire build environment, including the third-party dependencies in the WEB-INF/lib directory. That way, when one updates their sandbox or the production server, they've got the correct version of the code and all the dependencies.