ClassCast Exception on EJB remote object lookup

[Sachin Deokar]

Hi,

I am a complete beginner to EJB, trying to debug an issue for an application I recently started to work on.

I am getting this error "Security Error: java.lang.ClassCastException: com.security.SecurityManagerEJB_2ym79a_EOImpl_CBV cannot be cast to com..security.SecurityManagerRemote" at the first line in the code. I have also copied the ejb-jar.xml and ResourceLocator method. This is EJB 2.0

Would appreciate your help.

SecurityManagerRemote oSecManager = (SecurityManagerRemote)ResourceLocator.getInstance().getEJBObject(SecurityManagerEJB);

ejb-jar.xml
<session>
       <ejb-name>SecurityManagerEJB</ejb-name>
       <home>com.efs.ims.security.SecurityManagerHome</home>
       <remote>com.efs.ims.security.SecurityManagerRemote</remote>
       <ejb-class>com.efs.ims.security.SecurityManagerBean</ejb-class>
       <session-type>Stateless</session-type>
       <transaction-type>Container</transaction-type>
   </session>


ResourceLocator.java
public EJBHome getEJBHome(String jndiHomeName)throws Exception{
		EJBHome ejbHome = null;
		try{
			if (resourceCache.containsKey(jndiHomeName)) {
				// reference from the Cache
				ejbHome = (EJBHome) resourceCache.get(jndiHomeName);
			}else{
				// look up using the JNDI name
				Object anyHome = this.ic.lookup(jndiHomeName);
				// get the class name
				Class  cHomeClass = anyHome.getClass();
				// Checks to ensure that an object of a remote or abstract interface type can be cast to a desired type
				ejbHome = (EJBHome)PortableRemoteObject.narrow(anyHome, cHomeClass);
				// put the reference in the cache
				resourceCache.put(jndiHomeName, ejbHome);
			}
		}catch(Exception e){
			throw new Exception(e.toString());
		}
		// return the EJBHome
		return ejbHome;
	}
    

Thanks,
Sachin

[Marcelo Sousa Ancelmo]

Hello Sachin,

Look if you don't have on your client classpath an older version of the stubs and /or dependecies of the EJB component.

Regards,