Classes in added jar on classpath not found

Hi there,
The javafx compiler seems to have trouble finding classes from a jar that was added to the lib directory of a javafx project. I experience this trouble when working with the Netbeans 6.5.1 IDE and javafx version 1.2.
When trying to import a single class in a javafx file from a manually added jar, a compiler error occurs stating that the class cannot be found. Package names, however, do get recognized when importing classes, and therefore star import are possible. The actual classes from a package that was imported by means of a star import, don't get recognized.
Does anyone have an idea what causes this problem and how to resolve it?
Kind regards and thanks in advance,
Rienk

Can I refer classes in embedded jar's? I thought that did not work. It wasn't working so I tried putting the same jars into the same directory as the main class.
Let me try again with less information.
My jar with the main class is: testpojo.jar
The class path inside the manifest is
Class-Path: swing-layout-1.0.03.jar AbsoluteLayout.jar
The directory with the external jar is:
Directory of C:\DOCUME~1\MDARR\WORKSP~1\TESTPO~1\TARGET
9/11/2008 10:44 PM <DIR> .
9/11/2008 10:44 PM <DIR> ..
9/11/2008 10:44 PM 2,850 AbsoluteLayout.jar
9/11/2008 10:44 PM 118,103 swing-layout-1.0.3.jar
9/11/2008 10:56 PM 51,660 testpojo.jar
Unless I've missed something the the swing-layout-1.0.3.jar jar file is in the same relative directory as testpojo.jar.
When I execute the main class should be able to reference classes in that file.
But it gets,
Exception in thread "main" java.lang.NoClassDefFoundError: org/jdesktop/layout/GroupLayout$Group
What's happening? It's a little confusing because the same jar is also stored inside testpojo.jar. I read that Java can't load from embedded jar's so I tried putting them in the same directory as testpojo.jar and setting the class path inside the manifest.
And yes, I understand about the main class name. That was just me goofing around trying to label things. At this I'm a rookie.
Tia,
Maurice

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"Mark Griffith" <[email protected]> wrote in message
news:[email protected]...
From a FAQ on netui:
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cheers
mbg
"Robert Varga" <[email protected]> wrote in message
news:[email protected]...
Hi Rob,
I also have a similar error with deploying a Struts web application into
a
8.1 Basic Workshop Domain created
by 8.1 Platform.
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LogFactory.getLog(org.apache.....<classname>.class), it would not try touse
the property file and the
class defined in knex.jar.
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Robert Varga
"Rob Woollen" <[email protected]> wrote in message
news:[email protected]...
Actually it complained about a NoClassDefFoundError. Generally this
is
caused by something in a parent classloader that is found but then
depends on something only loadable in a child classloader.
eg.
You have something in your $CLASSPATH that references something in the
WEB-INF/lib. This will NoClassDefFoundError.
So, as I recommended, remove everything you've added to the$CLASSPATH,
add the jars to WEB-INF/lib. If you're still having problems, show me
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yuruo chen wrote:
Hello, Rob,
I did put the common-beanutils and other jar files in the
web-inf/lib
directory.
And from the weblogic console, I do see the jar file get included in
the
classpath.
(those generated file name have some number attached at the end.)
As
I
mentioned
before, I can use javap find the class using this weblogic generatedclasspath.
But weblogic complained that the class is not found.
Rob Woollen <[email protected]> wrote:
Remove anything you've added to the server's classpath.
Add the required jar files to WEB-INF/lib
-- Rob
yuruo chen wrote:
Hello,
I am tring to deploy my struts web application in weblogic 8.1. I
have
all the
library files in web-inf\lib directory. It gave me the error that
class
not found
for some class in struts library. The console also told me the
classpath.
But
I can use javap to find the class using the same classpath. Could
any
>>>>>
one point
me some direction what I am doing wrong here.
Thanks.
Here is the error message:
java.lang.NoClassDefFoundError:
org/apache/commons/beanutils/Converter.>
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<Servlet:
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"action"
fa
iled to preload on startup in Web application: "voppocWebApp".
javax.servlet.ServletException:
[HTTP:101250][ServletContext(id=9921725,name=vop
pocWebApp,context-path=/voppocWebApp)]: Servlet classorg.apache.struts.action.A
ctionServlet for servlet action could not be loaded because a classon which it
depends was not found in the classpath
C:\bea\weblogic81\server\bin\myserver\upl
>
oad\voppocWebApp.war;C:\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\extrac
>
t\myserver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF\lib\activation30425.jar;C:
>
\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\extract\myserver_voppocWebApp
>
_voppocWebApp\jarfiles\WEB-INF\lib\commons-beanutils30426.jar;C:\bea\weblogic81\
>
server\bin\.\myserver\.wlnotdelete\extract\myserver_voppocWebApp_voppocWebApp\ja
>
rfiles\WEB-INF\lib\commons-collections30427.jar;C:\bea\weblogic81\server\bin\.\m
>
yserver\.wlnotdelete\extract\myserver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF
>
\lib\commons-digester30428.jar;C:\bea\weblogic81\server\bin\.\myserver\.wlnotdel
>
ete\extract\myserver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF\lib\commons-file
>
upload30429.jar;C:\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\extract\mys
>
erver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF\lib\commons-lang30430.jar;C:\be
>
a\weblogic81\server\bin\.\myserver\.wlnotdelete\extract\myserver_voppocWebApp_vo
>
ppocWebApp\jarfiles\WEB-INF\lib\commons-logging30431.jar;C:\bea\weblogic81\serve
>
r\bin\.\myserver\.wlnotdelete\extract\myserver_voppocWebApp_voppocWebApp\jarfile
>
s\WEB-INF\lib\commons-validator30432.jar;C:\bea\weblogic81\server\bin\.\myserver
>
\.wlnotdelete\extract\myserver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF\lib\ja
>
karta-oro30433.jar;C:\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\extract\
>
myserver_voppocWebApp_voppocWebApp\jarfiles\WEB-INF\lib\jdbc2_0-stdext30434.jar;
>
C:\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\extract\myserver_voppocWebA
>
pp_voppocWebApp\jarfiles\WEB-INF\lib\mailapi30435.jar;C:\bea\weblogic81\server\b
>
in\.\myserver\.wlnotdelete\extract\myserver_voppocWebApp_voppocWebApp\jarfiles\W
>
EB-INF\lib\struts30436.jar;C:\bea\weblogic81\server\bin\.\myserver\.wlnotdelete\
extract\myserver_voppocWebApp_voppocWebApp\jarfiles\_wl_cls_gen.jar.
java.lang.NoClassDefFoundError:
org/apache/commons/beanutils/Converter.
atweblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubI
mpl.java:800)
atweblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppS
ervletContext.java:3236)
atweblogic.servlet.internal.WebAppServletContext.preloadServlets(WebApp
ServletContext.java:3181)

Servlet Class dependency is not found at weblogic startup.

I have the following ear file which includes:
web-inf\lib (contains all the needed utilities jar)
*ejb.jar
*webapp.war (The WEB-INF\lib dir inside war file contains all the needed utilities
jars.
I get the following BEA-101250 error saying that a servlet could not be loaded
because a class that it depends on is not in the classpath. But I think I place
all the needed jars in the startWebLogic.cmd file as well as in the WEB-INF\lib
of the ear and war files. However, if a classs that a servlet depends on is not
found, why doesn't weblogic simply tells us what that class is (instead of guessing
to death)? How can I find which class that the servlet depends on is not found?
Thanks.
BEA-101250
Error: [context]: Servlet class className for servlet svltName could not be loaded
because a class on which it depends was not found in the classpath classPath.\nt.
Description
[context]: Servlet class className for servlet svltName could not be loaded because
a class on which it depends was not found in the classpath classPath.\nt.
Cause
One of the classes the servlet class uses was not recognized by the Web application
classloader.
Action
Make sure the class is available either in WEB-INF/classes or WEB-INF/lib or
system classpath.

Hmm, do you perhaps have the prefer web-inf-classes set in weblogic.xml?
-- Rob
rock wrote:
I place all the utilties class in the top level APP-INF/lib. Same error. I installed
this application on JBoss and everything runs fine. I really don't know what
classes or jar that weblogic says that a servlet depends on.
There are only a finite number of places where you can put all the needed jars
in which that servlet depends:
1. myapp.ear/APP-INF/lib
2. myapp.ear/WEB-INF/lib
3. or put it to a directory in the ear and refer to each jars in the CLASS-PATH
line of the MANIFEST.MF file.
4. myweb.war/WEB-INF/lib
5. EJBs are in myapp.ear top directory
6. Refer to all the jars in startWebLogic.cmd script as it starts.
I still don't know what jars I am missing.
Thanks.
Rob Woollen <[email protected]> wrote:
rock wrote:
Rob,
I remove all the classpath, but when I deploy the ejb complains thatit missed
all the needed utilities class. Ok, stop there. If the utilities classes need to be seen by both the
EJBs and webapp, then placing them in WEB-INF/lib is not enough. That
makes them available only to the webapp.
If you're using 8.1, then the solution is pretty simple. Move your
utility classes into a top-level directory named APP-INF/lib
ie
ear/APP-INF/lib/utils.jar
ear/fooejb.jar
ear/fooweb.war
If you're using < 8.1, then you can still move the jars to APP-INF/lib,
but you'll need to add manifest class-path entries to the EJB and webapp.
-- Rob
I again place it on - the ear deploys fine (ejbs
and war). But the starting servlet could not loaded because it cannotfinds a
class that it depends on. I think I reference all the classes or jarsthat it
needs - so I need it to tell me which one. I don't know why weblogicmakes it
so difficult. It took me a month already and all I need to do is findthe class
that it complains about.
Rob Woollen <[email protected]> wrote:
Yes, it would be nicer if that exception had more information.
You told the web container the servlet-class in your web.xml. THe
web
container tried to load it and got a NoClassDefFoundError.
Unfortuantely that exception doesn't include much information.
NoClassDefFoundErrors are caused by something in a parent loader
depending on something in a child classloader.
Step #1 is for you to remove everything you've added to the $CLASSPATH.
If that doesn't solve your problem, post again.
-- Rob
rock wrote:
I have the following ear file which includes:
web-inf\lib (contains all the needed utilities jar)
*ejb.jar
*webapp.war (The WEB-INF\lib dir inside war file contains all the
needed
utilities
jars.
I get the following BEA-101250 error saying that a servlet could notbe loaded
because a class that it depends on is not in the classpath. But Ithink I place
all the needed jars in the startWebLogic.cmd file as well as in theWEB-INF\lib
of the ear and war files. However, if a classs that a servlet dependson is not
found, why doesn't weblogic simply tells us what that class is (insteadof guessing
to death)? How can I find which class that the servlet depends onis not found?
Thanks.
BEA-101250
Error: [context]: Servlet class className for servlet svltName couldnot be loaded
because a class on which it depends was not found in the classpathclassPath.\nt.
Description
[context]: Servlet class className for servlet svltName could notbe loaded because
a class on which it depends was not found in the classpath classPath.\nt.
Cause
One of the classes the servlet class uses was not recognized by theWeb application
classloader.
Action
Make sure the class is available either in WEB-INF/classes or WEB-INF/libor
system classpath.

Classes in added jar on classpath not found

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