I am working on a Java RMI application and have problems binding the server to the registry. I am working on eclipse using the rmi plugin and everything worked fine before I had to format my computer. In addition, I am sure that the code is in order, since it was provided to me as a solution, so there should be something wrong with my configuration. Here is the code:
public static void main (String[] args){ try{ RMIChatServer myObject = new RMIChatServerImpl(); System.setSecurityManager(new RMISecurityManager()); Naming.rebind("Hello", myObject); System.out.println("Remote object bound to registry"); } catch( Exception e){ System.out.println("Failed to register object " + e); e.printStackTrace(); System.exit(1); } }
Exceptions that he gives:
Failed to register object java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: access to class loader denied java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: access to class loader denied at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:419) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267) at sun.rmi.transport.Transport$1.run(Transport.java:177) at sun.rmi.transport.Transport$1.run(Transport.java:174) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:173) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:273) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:251) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:377) at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source) at java.rmi.Naming.rebind(Naming.java:177) at RMIChatServerImpl.main(RMIChatServerImpl.java:175) Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: access to class loader denied at sun.rmi.registry.RegistryImpl_Skel.dispatch(Unknown Source) at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:409) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:267) at sun.rmi.transport.Transport$1.run(Transport.java:177) at sun.rmi.transport.Transport$1.run(Transport.java:174) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:173) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.ClassNotFoundException: access to class loader denied at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:447) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:184) at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637) at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264) at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:216) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1593) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1514) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369) ... 13 more Caused by: java.security.AccessControlException: access denied ("java.io.FilePermission" "\D:\uni\YEAR 3\Enterprise Programming\java\czat solution 2\bin\-" "read") at java.security.AccessControlContext.checkPermission(AccessControlContext.java:366) at java.security.AccessController.checkPermission(AccessController.java:555) at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) at sun.rmi.server.LoaderHandler$Loader.checkPermissions(LoaderHandler.java:1176) at sun.rmi.server.LoaderHandler$Loader.access$000(LoaderHandler.java:1130) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:411) ... 22 more
I investigated the problem, and most of them say that it is because of the code settings (I also use a security policy), I tried different settings and currently use the "calculate from class" parameter provided by the rmi plugin that worked before, but does not work now :( Please advice!
tomsky
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