Rmi execution error
error:
http://www.comp.hkbu.edu.hk/~jng/comp3320/rmi.html
at the above site some examples are available.I have taken first one,
those are given below and copied all ther programs in c:\tesing\remote
SampleClient.java
SampleServer.java
SampleServer.Impl.java
in windows os
Those programs are compiled like this,no errors are given
# To Compile:
C:\Testing\remote>javac SampleServer.java
C:\Testing\remote>javac SampleServerImpl.java
C:\Testing\remote>rmic SampleServerImpl
C:\Testing\remote>javac SampleClient.java
when it comes to run it is giving the error
C:\Testing\remote> start rmiregistry
C:\Testing\remote>java -Djava.security.policy=policy.all SampleServerImpl
Exception in thread "main" java.security.AccessControlException: access denied (
java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkConnect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown S
ource)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S
ource)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Unknown Source)
at SampleServerImpl.main(SampleServerImpl.java:33)
C:\Testing\remote>java -Djava.security.policy=policy.all SampleClient
cliend case also same type of error
what is the solution to execute this one?
thanks in advance
can u paste the contents of your policy file..
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java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is:
java.net.SocketException: Connection reset
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:203)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
at com.emf1.dataserver.KeyFrequencyKeeper_Stub.getDUNSCounts(Unknown Source)
at com..match.KeyFrequencyKeeperProxy.getKeyKQSs(KeyFrequencyKeeperProxy.java:307)
at com.emf1.match.KeyGenerator.generateKeys(KeyGenerator.java:453)
at com.emf1.match.InquiryProcessor.run(InquiryProcessor.java:870)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)
at java.io.BufferedInputStream.read(BufferedInputStream.java:201)
at java.io.DataInputStream.readByte(DataInputStream.java:331)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:189)
... 6 more
The period of time, the server keeps on running (before it crashes) is also not the same. Sometimes it works fine without any problem. But most of the time the server crashes after processing some records.
I don't know why this is happening.
Please help...
Thanks in advance..I have this error too when I running my rmi server site program.
I am running it in Linux Environment.
Anyone got any idea about this? -
Hello,
I am trying to make an Applet work with an RMI server, but i keep getting the same exception again and again whatever i do.
More specifically, i get the following :
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.net.MalformedURLException: unknown protocol: c
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at server.ClientDemo.initGUI(ClientDemo.java:100)
at server.ClientDemo.<init>(ClientDemo.java:85)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.MalformedURLException: unknown protocol: c
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at java.net.URL.<init>(Unknown Source)
at sun.rmi.server.LoaderHandler.pathToURLs(Unknown Source)
at sun.rmi.server.LoaderHandler.loadProxyClass(Unknown Source)
at java.rmi.server.RMIClassLoader$2.loadProxyClass(Unknown Source)
at java.rmi.server.RMIClassLoader.loadProxyClass(Unknown Source)
at sun.rmi.server.MarshalInputStream.resolveProxyClass(Unknown Source)
at java.io.ObjectInputStream.readProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
... 13 more
The exeption is thrown at the following line :
remoteReference = (RMIServer) registry.lookup(RMIServer.REGISTRY_NAME);
This is the code of the server which seems to be running ok:
if(System.getSecurityManager()==null)
System.setSecurityManager(new SecurityManager());
registry = LocateRegistry.createRegistry(1099);
RMIServer sr=(RMIServer) UnicastRemoteObject.exportObject(new ServerDemo(),1099);
registry.rebind(RMIServer.REGISTRY_NAME, sr);
and the client:
registry = LocateRegistry.getRegistry("localhost");
remoteReference = (RMIServer) registry.lookup(RMIServer.REGISTRY_NAME);
Thank you in advance
Alex
Forgot to mention that i am setting the security policy and codebase programmatically:
System.setProperty("java.security.policy","C:\\Users\\Alex\\workspace\\Demo\\grantall.policy");
System.setProperty("java.rmi.server.codebase","C:\\Users\\Alex\\workspace\\Demo\\bin");
Edited by: Alkon on May 15, 2008 4:31 PMI edited the code that sets the security and i am now getting the following error, again at the lookup:
java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is:
java.io.EOFException
at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at server.ClientDemo.initGUI(ClientDemo.java:101)
at server.ClientDemo.<init>(ClientDemo.java:91)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.EOFException
at java.io.DataInputStream.readByte(Unknown Source)
... 15 more -
Java.rmi.UnmarshalException:error
hi,
A rmi program does not work on my pc but it worked on others pc there are three programs ie RMIServer.java which is the server application ,RMIClient.java which is the client application and RMIInterface.java which has two methods which are remote all these programs gets compiled but while running it from the dos prompt it gives these errors:
RemoteException occured in serverthread;nested exception is:java.rmi.UnmarshalException:error unmarshalling arguments;nested exception is:java.lang.ClassNotFoundException:RMIServer_stub
what is the problem how does it work on others pc and not on mine how should i handle these exception what are the reasons for its occurrance please helpIt might help to start the rmiregistry from the directory where your class files are stored.
In this case the rmiregistry adds its working directory to its codebase.
Just keep in mind that the rmiregistry works in a similar fashion to the javac compiler & needs to be able to find the _Stub & _Skel class files. -
Java.rmi.UnmarshalException: error unmarshalling arguments;
Hi!
I'm a newbe with rmi, and I try to use a test program, from Thinking in Java:
ITiempoPerfecto.java
package c15.rmi;
import java.rmi.*;
interface ITiempoPerfecto extends Remote {
long obtenerTiempoPerfecto() throws RemoteException;
TiempoPerfecto.java
package c15.rmi;
import java.rmi.*;
import java.rmi.server.*;
import java.rmi.registry.*;
import java.net.*;
public class TiempoPerfecto extends UnicastRemoteObject implements ITiempoPerfecto {
public long obtenerTiempoPerfecto () throws RemoteException {
return System.currentTimeMillis();
public TiempoPerfecto() throws RemoteException {
super();
public static void main(String[] args) throws Exception {
System.setSecurityManager(new RMISecurityManager());
TiempoPerfecto tp=new TiempoPerfecto();
Naming.bind("//localhost/TiempoPerfecto",tp);
System.out.println("Preparado para dar la hora");
}and
MostrarTiempoPerfecto.java
package c15.rmi;
import java.rmi.*;
import java.rmi.registry.*;
public class MostrarTiempoPerfecto {
public static void main(String[] args) throws Exception {
System.setSecurityManager( new RMISecurityManager());
ITiempoPerfecto t=(ITiempoPerfecto)Naming.lookup("//localhost/TiempoPerfecto");
for (int i=0;i<10;i++)
System.out.println("Tiempo perfecto: "+t.obtenerTiempoPerfecto());
}I compile all the files normally.
Later I do:
rmiregistry &
rmic c15.rmi.TiempoPerfecto(This only generate the file TiempoPerfecto_Stub.class, it's ok?)
Without warnings or errors. But when I try to create a server object
java c15/rmi/TiempoPerfectoI obtain this:
Exception in thread "main" java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: c15.rmi.TiempoPerfecto_Stub
at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:385)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:240)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
.......What is the mistake? What may I do to run this programs?
Thank you!You must change your current directory to your class path (EX: java c15/rmi/TiempoPerfecto) then execute command remiregistry.
-
RemoteException: java.rmi.ConnectIOException: error during JRMP connection
We have a Java application implementing a RMI server.
The server uses with the jacob api in order to generate Word files in a windows system.
My clients work in linux.
The RMI method is synchronized in order not to have problems executing Word from multiple threads.
The application and the RMI server work all right for some time, but after some hours (sometimes days) the client throws the following error:
RemoteException: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.net.SocketException: Connection resetHi Varun,
This is definitely required even if you are on WAS6.40.
After copying this , you have to also follow the register dll using this command
rgsvr32 "c:\Winnt\system32\librfc32.dll"
check the OS your using wether it is windowsXP/2003 or 2000.
there are seperate commands for them to register the dll.
This is available in the installation guide.
we also had the same problem and then we did this and it worked for us.
f you have done this, then there are other possibilities also
1. Install SOAP toolkit on the CRM server as this is required to establish the connectivity
2. See whether the MAPBOX services are deployed on the SAP J2EE engine
3. Create RFC through SM59 only for mapbox and register them.
4. See if there are any old versions of Java on your machine then uninstall them and install the required java components.
Let us know if it resolved the problem
Thanks
Yash
reward points if it helps.
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