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This page contains an archived post to the Java Answers Forum made prior to February 25, 2002.
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Message:
RMI server sample code of "Thinking in JAVA"
Posted by Robert Ding on July 27, 2000 at 12:01 PM
I've tried to compile and run the RMI sample code of "Thinking in Java" ebook. But I always got exceptions while running server,
here is the exception traces, anybody can tell me, what's wrong with that. Thanks
Robert java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.(Throwable.java:94)
at java.lang.Exception.(Exception.java:42)
at java.lang.RuntimeException.(RuntimeException.java:47)
at java.lang.SecurityException.(SecurityException.java:39)
at java.security.AccessControlException.(AccessControlException.java:57)
at java.security.AccessControlContext.checkPermission(Compiled Code)
at java.security.AccessController.checkPermission(Compiled Code)
at java.lang.SecurityManager.checkPermission(Compiled Code)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1021)
at java.net.Socket.(Socket.java:258)
at java.net.Socket.(Socket.java:98)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:29)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Compiled Code)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:497)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:194)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Compiled Code)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:165)
at PerfectTime.main(PerfectTime.java:19)The server code is:
public class PerfectTime extends UnicastRemoteObject implements PerfectTimeI{
public long getPerfectTime() throws RemoteException{
return System.currentTimeMillis();
}
public PerfectTime() throws RemoteException{
super();
} public static void main(String[] args){
System.setSecurityManager(new RMISecurityManager());
try{
PerfectTime pt = new PerfectTime();
Naming.rebind("PerfectTime", pt);
System.out.println("Object registered!");
}catch(Exception e){
e.printStackTrace();
}
}
}
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