java.lang.NoClassDefFoundError:

Hi All,

I am getting the follwing excepition while running the application.
which jar i need to add in the class path. I am using weblogic 10.0 sever.
pls help as soon as possible.

Exception in thread "main" java.lang.NoClassDefFoundError:
weblogic/transaction/internal/TransactionHelperImpl
at
weblogic.jndi.spi.EnvironmentManager$DefaultFactoryMaker.<clinit>(Environm
entManager.java:26)
at weblogic.jndi.spi.EnvironmentManager.getInstance(EnvironmentManager.java:48)
at weblogic.jndi.Environment.getContext(Environment.java:307)
at weblogic.jndi.Environment.getContext(Environment.java:277)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.
java:117)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at
com.deceval.security.businessobjects.ServiceLocator.getContext(ServiceLocator.ja
va:66)
at
com.deceval.security.businessobjects.ServiceLocator.getSecurityServerMgrSO(Servi
ceLocator.java:138)
at
com.deceval.security.securityinterface.SecuritySubSystemWin.<init>(Securit
ySubSystemWin.java:121)
at
com.deceval.security.securitywindow.StartClass.<init>(StartClass.java:29)
at com.deceval.security.securitywindow.StartClass.main(StartClass.java:47)
Press any key to continue . . .

thanks in advance