ClassCastException at OracleImplicitConnectionCache setConnection method.

Question

Hi,
I am using OracleConnectionCacheManager to cache the OracleDataSource connection. So I have been calling createCache method of OracleConnectionCacheManager with datasource and cache properties. So I am getting an ClassCastExceptiond
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Properties
at oracle.jdbc.pool.OracleImplicitConnectionCache.setConnectionCacheProperties(OracleImplicitConnectionCache.java:1848)
at oracle.jdbc.pool.OracleImplicitConnectionCache.<init>(OracleImplicitConnectionCache.java:184)
at oracle.jdbc.pool.OracleConnectionCacheManager.createCache(OracleConnectionCacheManager.java:270)
at oracle.jdbc.pool.OracleConnectionCacheManager.createCache(OracleConnectionCacheManager.java:172)
I google this exception but did not find anything, so thought to dig it. So I decompiled the class file of OracleImplicitConnectionCache, in setConnectionCacheProperties method of this class I found a line, which I think the cause of the problem.
Properties properties1 = (Properties)properties.get("AttributeWeights")
I just want to know whether it is right or not. If it is right then what could be the reason of this exception and how can I resolve it?
If no, then how can I make it work? I mean is there any patch available?
Thanks in advance.

Answer 1

even if isAssignableFrom returns false, still it can work.....
here is how
Object notificationServiceObject = initialContext.lookup(NotificationServiceHome.JNDI_NAME);          
//Key Step
Object notificationServiceRawObject = ((org.jnp.interfaces.MarshalledValuePair)
notificationServiceObject).get();
NotificationServiceHome notificationServiceHome =
          (NotificationServiceHome)javax.rmi.PortableRemoteObject.narrow
(notificationServiceRawObject,NotificationServiceHome.class);
NotificationService notificationService = notificationServiceHome.create();