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I have a very simple Java RMI Server that looks like the following: import java.rmi.*; import java.rmi.server.*; public class CalculatorImpl extends UnicastRemoteObject implements Calculator { private String mServerName; public CalculatorImpl(String serverName) throws RemoteException { super(); mServerName = serverName; } public int calculate(int op1, int op2) throws RemoteException { return op1 + op2; } public void exit() throws RemoteException { try{ Naming.unbind(mServerName); System.out.println("CalculatorServer exiting."); } catch(Exception e){} System.exit(1); } public static void main(String args[]) throws Exception { System.out.println("Initializing CalculatorServer."); String serverObjName = "rmi://localhost/Calculator"; Calculator calc = new CalculatorImpl(serverObjName); Naming.rebind(serverObjName, calc); System.out.println("CalculatorServer running."); } } When I call the exit method, System.exit(1) throws the following exception: CalculatorServer exiting. java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:203) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126) at CalculatorImpl_Stub.exit(Unknown Source) at CalculatorClient.<init>(CalculatorClient.java:17) at CalculatorClient.main(CalculatorClient.java:29) Caused by: java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:243) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:189) ... 4 more [2]+ Exit 1

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