lookup NoClassDefFoundError

[merabi kamjin]

heyall.

i'm facing this error for more than 12h...
need some serious help...

I've made a EAR file called "Ad.ear".
There are JAR and WAR files in the Ad.ear.

In Jar file, I have a Remote interface called "ResetObj" and implemented Stateless Session bean called "ResetObjBean".

Here's what I'm tryin to do.

I created another EAR file called Ad2.ear which only contains the Servlet.
From the servlet, I'm tryin to call the Remote Session Bean like this:

Context ctx = new InitialContext();
ResetObj rst = (ResetObj )ctx.lookup("Ad/ResetObjBean/remote"); //this part fails
rst.resetObject();

but the prob is that it gives me following error:

java.lang.NoClassDefFoundError: ad/session/flow/ResetObj
java.lang.Class.getDeclaredConstructors0(Native Method)
java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
java.lang.Class.getConstructor0(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BasePro
tocol.java:664)
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
java.lang.Thread.run(Unknown Source)

JBoss:4.0.5GA
JVM:1.5.0_10

and using EJB3.0.

I've set ClassPath to both JAVA_HOME and JBOSS_HOME.

I copied JBoss folder and Eclipse Project folder from my co-worker, but it didn' solve the prob...

I also tried installing new Eclipse and set up the new environment, but nothing changed.

It seems that the prob is something to do w/ the JNDI, but I cannot find the answer.

ANY help will be appreciated!!

[Dave Wingate]

I created another EAR file called Ad2.ear which only contains the Servlet.

If your servlet is packaged inside an EAR that only contains the servlet (and not EJB interfaces), then the class not found exception is to be expected. Try updating your Ad2.ear so that it contains a war file (including your servlet) and a jar file containing the home and remote interfaces for your bean.

[merabi kamjin]

thanks for fast reply.

but the situation didn change any.

I edited the build xml and included the "Ad.jar" and "Ad2.war" into "Ad2.ear", but it gives me the same error...

forgot the tell you that just above the error msg it tells me:

11:43:41,968 INFO  [[/ad]] Marking servlet AdServlet as unavailable
11:43:41,968 ERROR [[AdServlet]] Allocate exception for servlet AdServlet

does this tells you anything?

I'm guessing that the my PC's classpath might be the cause...
here's the path that I have:

JAVA_HOME -> C:\Program Files\Java\jdk1.5.0_10
JBOSS_HOME -> C:\data\jboss-4.0.5.GA.2
 
CLASSPATH -> 
.;
C:\Program Files\Apache Software Foundation\Tomcat 5.5\server\lib;
JAVA_HOME;
JBOSS_HOME;
C:\data\jboss-4.0.5.GA.2\server\default\deploy;
C:\data\jboss-4.0.5.GA.2\client

Also, in Eclipse i included libraries in this order:

jbossall-client.jar
jboss-aop-jdk50-client.jar
jboss-aspect-jdk50-client.jar
mail.jar
J2EE 1.4 Libraries
JBoss EJB3.0 Libraries
JRE system Libraries jre1.5.0_10

I'm guessing that the cause is in my computer and not the code or the jboss setting...

it's wired tho...
i have some servlets inside of "Ad.ear" and from that servlet there's no problem at all.

it happens only when i tried to access from the other EAR file.