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1. Re: strange problem - NoClassDefFoundError
adrian.brock Aug 13, 2003 7:46 AM (in response to surekharao)You have a problem with class visibilty.
The class trying to load the other class is in
a classloader that cannot see the other class.
You'll need to post more details about your packaging.
Regards,
Adrian -
2. Re: strange problem - NoClassDefFoundError
surekharao Aug 17, 2003 7:19 PM (in response to surekharao)Hi Adrian
Thanks for your reply
sorry for late reply since I was on vacation
well .. my package structure is like below:
UserBean module
com.sms.user.ejb.*; --> calling bean package
UserControlBean--> Bean class
UserControl---> Remote Interface
UserControlHome--> Home Interface
MilageBean module
com.sms.milage.ejb.*; --> other bean package
MilageControlBean--> Bean class
MilageControl---> Remote Interface
MilageControlHome--> Home Interface
Problem :
When I call MilageControlHome in my calling bean(UserControlBean) getting exception java.lang.NoClassDefounderErrorException
The below code is where my bean calling other beans out side of package
MilageControlHome milageHome = (MilageControlHome) EJBUtility.getEJBHome("com/wizit/milage/ejb/MilageControl");
MilageControl milageControl = milageHome.create();
And as I told if I packaged other bean classes in my calling bean package then it didn't give any exception and working very fine
I doubt some thing wrong in classpath, I have checked already my classpath settings and pretty sure there is nothing wrong.
So confusing what is the real problem with this..I am using Jboss -2.4.4 + tomcat -4.0.3 both are standard alone.
Pls refer once this once and help me out.
Thanks in advance
regards
Surekharao -
3. Re: strange problem - NoClassDefFoundError
surekharao Aug 17, 2003 7:26 PM (in response to surekharao)Hi again
I mistyped the package path in the code where my bean calling other beans out side of package
Context ctx = EJBUtil.getInitialContext();
MilageControlHome milageHome = (MilageControlHome) EJBUtility.getEJBHome(ctx,"com/wizit/milage/ejb/MilageControlHome",MilageControlHome.class);
MilageControl milageControl = milageHome.create();
thanks
Surekharao -
4. Re: strange problem - NoClassDefFoundError
surekharao Aug 17, 2003 7:30 PM (in response to surekharao)Hi once again !
The below code is the correct code for package path in the code where my bean calling other beans.
Context ctx = EJBUtil.getInitialContext();
MilageControlHome milageHome = (MilageControlHome) EJBUtility.getEJBHome(ctx,"com/sms/milage/ejb/MilageControlHome",MilageControlHome.class);
MilageControl milageControl = milageHome.create();
thanks
Surekharao -
5. Re: strange problem - NoClassDefFoundError
adrian.brock Aug 18, 2003 2:25 PM (in response to surekharao)You have to do your workaround in jboss-2.4 unless
you deploy the classes statically using the
ClassPathExtension mbean.
There is no unified classloader.
Regards,
Adrian -
6. Re: strange problem - NoClassDefFoundError
surekharao Aug 20, 2003 1:05 AM (in response to surekharao)Hi Adrian
I am doing work around Jboss-2.4.4, And you said have to deploy the classes statically using the classpath extension .. this i don't understand clearly .. could you plase explain once more..
As I am deploying EJBs in .jar files which are storing $JBOSS_HOME/deploy/, Servelt's and Jsp's are in Tomcat(both are standarad alone)
I am not creatign any types of .EAR, .WAR files
But very strangly in my project some modules are working very fine even that modules beans calls other beans out side of packages and some other modules are not working and getting Exception classDefounderError when the bean calling other beans out side of pakage
Don't understand what could be the problem
thanks & regards
Suree -
7. Re: strange problem - NoClassDefFoundError
adrian.brock Aug 21, 2003 4:36 AM (in response to surekharao)The classpath extension mbean adds classes to global
classloader space. e.g. all jars in lib/ext are added this
way. If I remember correctly it is in jboss.conf
Making an ear will solve your problem as well.
Regards,
Adrian