cant run java file from command line but works with .sh file??

[Ben Flowers]

Hi, basically i am writing an RMI based java application and ive written some scripts to run and comile it.
The compile scipt is:
rm *.class javac *.java rmic RMIChatClientImpl rmic RMIChatServerImpl rmic RMIServerImpl

and to run the server i run the script:
pkill rmiregistry rmiregistry & java RMIServerImpl

if i type those exact commands in the same order i get an exception and the server fails.
if i run the scripts from the command line i get the same exception
but if i run them from the GUI the server works perfectly.
THIS IS DRIVING ME INSANE. does anyone have a clue why this is happening and how i can fix it??
Thanks,
Ben


the exception i am getting is:

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
	java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
	java.lang.ClassNotFoundException: RMIServerImpl_Stub
	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 RMIServerImpl.main(RMIServerImpl.java:68)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
	java.lang.ClassNotFoundException: RMIServerImpl_Stub
	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: RMIServerImpl_Stub
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:453)
	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

[Koen Aerts]

Looks like perhaps the CLASSPATHs are different from the one on your command line vs the one through the GUI. You could try an "echo $CLASSPATH>/tmp/myfile.txt" just before you execute the "java RMIServerImpl" command (both command line and GUI) and then compare.

[Tim Holloway]

RMI has special needs. One of them is that the RMI Registry needs to have the application linkage classes within its classpath. That is because the registry is simply an app that listens on a port, receives client requests, and returns the requested linkage to the client. For more details, check in out RMI forum where the experts hang out.

IDEs tend to have sloppy classpaths, since both the development and debug environments exist and overlap, as do multiple applications that might be running at the same time. So the fact that something runs in an IDE doesn't guarantee it will run in the Real World.