title: I am running a RMI application and no security manager: RMI class loader disabled exception comes
body: <p>This is the whole exception:</p>
  
  <pre><code>Computeappengine exceptionRemoteException occurred in server thread; nested exception is: 
  java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
  java.lang.ClassNotFoundException: Client.prog (no security manager: RMI class loader disabled)
  java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
  java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
  java.lang.ClassNotFoundException: Client.prog (no security manager: RMI class loader disabled)
  at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:334)
  at sun.rmi.transport.Transport$1.run(Transport.java:159)
  at java.security.AccessController.doPrivileged(Native Method)
  at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
  at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
  at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
  at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
  at java.lang.Thread.run(Thread.java:662)
  at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
  at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
  at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
  at Engine.ComputeappEngine_Stub.executeTask(Unknown Source)
  at Client.computeappprog.main(computeappprog.java:23)
  Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
  java.lang.ClassNotFoundException: Client.prog (no security manager: RMI class loader disabled)
  at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
  at sun.rmi.transport.Transport$1.run(Transport.java:159)
  at java.security.AccessController.doPrivileged(Native Method)
  at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
  at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
  at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
  at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
  at java.lang.Thread.run(Thread.java:662)
  Caused by: java.lang.ClassNotFoundException: Client.prog (no security manager: RMI class loader disabled)
  at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:373)
  at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:163)
  at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
  at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
  at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
  at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574)
  at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
  at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
  at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
  at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
  at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:288)
  ... 9 more
  </code></pre>
  
  <p>My client package contains two classes <code>Computeappproj</code> which contains <code>main</code> also and
  <code>prog</code></p>
  
  <p>I already searched 1000 of forums. Nothing helped.</p>
  
  <p>Hoping for something positive</p>
  
  <p>and good</p>
  
  <p>may be...</p>