Java APIs

Hi,

I've created a java client that communicates with a server via RMI/IIOP. On server side EJB's are implementing the functionality. The EJB creates on demand simple beans (POJO) out of a database and returns them as an array of these beans. When 10-20 Beans are transmittet, everything works fine. 2-2.5 sec. per call. When I try to transmit 1000 beans, two or three calls go through, round about 10 seconds. Then a call blocks and the following exception is thrown:

WARNUNG: "IOP00410215: (COMM_FAILURE) Read of full message failed : bytes requested = 4.340.948 bytes read = 1.508.168 max wait time = 60.000 total time spent w
aiting = 71.229"
org.omg.CORBA.COMM_FAILURE:   vmcid: SUN  minor code: 215  completed: No
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.transportReadTimeoutExceeded(Unknown Source)
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.transportReadTimeoutExceeded(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.readFully(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.read(Unknown Source)
        at com.sun.corba.se.impl.protocol.giopmsgheaders.MessageBase.readGIOPBody(Unknown Source)
        at com.sun.corba.se.impl.transport.CorbaContactInfoBase.finishCreatingMessageMediator(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.finishReadingBits(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.doWork(Unknown Source)
        at com.sun.corba.se.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(Unknown Source)
Exception in thread "main" java.rmi.MarshalException: CORBA COMM_FAILURE 1398079696 Maybe; nested exception is:
        org.omg.CORBA.COMM_FAILURE:   vmcid: SUN  minor code: 208 completed: Maybe
        at com.sun.corba.se.impl.javax.rmi.CORBA.Util.mapSystemException(Unknown Source)
        at javax.rmi.CORBA.Util.mapSystemException(Unknown Source)
        at com.ser.sedna.services.transfer.iiop._OrgaServiceIIOPRemote_Stub.findGroupMembers(Unknown Source)
        at com.ser.sedna.ws.test.IIOPTest.findAllUsers(IIOPTest.java:133)
        at com.ser.sedna.ws.test.IIOPTest.main(IIOPTest.java:174)
Caused by: org.omg.CORBA.COMM_FAILURE:   vmcid: SUN  minor code: 208 completed: Maybe
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.connectionAbort(Unknown Source)
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.connectionAbort(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.finishReadingBits(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.doWork(Unknown Source)
        at com.sun.corba.se.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(Unknown Source)
Caused by: org.omg.CORBA.COMM_FAILURE:   vmcid: SUN  minor code: 215  completed: No
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.transportReadTimeoutExceeded(Unknown Source)
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.transportReadTimeoutExceeded(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.readFully(Unknown Source)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.read(Unknown Source)
        at com.sun.corba.se.impl.protocol.giopmsgheaders.MessageBase.readGIOPBody(Unknown Source)
        at com.sun.corba.se.impl.transport.CorbaContactInfoBase.finishCreatingMessageMediator(Unknown Source)
        ... 3 more

I've played around with the timeout settings (this exception raised with a timeout of 60sec) but that does not solve the problem. It only happens one or two calls later.

Any one an idea?

Thx,
Stephan