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Java Network Q&A
Java Network Q&A » RMI » exception 

1. Bad idea to chain exceptions with RMI?    stackoverflow.com

Is it a bad idea to use exception chaining when throwing RemoteExceptions? We have an RMI server that does something like this:

public Object doSomething() throws RemoteException

2. java.rmi.NoSuchObjectException: no such object in table    stackoverflow.com

I am writing a very simple RMI server, and I am seeing intermittent java.rmi.NoSuchObjectExceptions in the unit tests. I have a string of remote method calls on the same object, and ...

3. Exceptions over remote methods    stackoverflow.com

What are the best practices for exceptions over remote methods? I'm sure that you need to handle all exceptions at the level of a remote method implementation, because you need to log ...

4. running rmi client server in a different process... unbound exception    stackoverflow.com

i need to write a RMI client/server application that the server is running in a different process. when i am running my code in the same process everything is working fine, ...

5. java rmi client exceptions    stackoverflow.com

I'm writing an rmi application. Everything works perfectly fine when i put the all classes in one directory(one single package). However, when i try to split the server part and the ...

6. RMI on client side generating exception when getting a reference to the RMI server    stackoverflow.com

When I try to run an RMI client after running the RMI server I get the following exception:

EncodeInterface exception: java.lang.ClassCastException: $Proxy30 cannot be cast to hw2.chat.backend.main.EncodeInterface
java.lang.ClassCastException: $Proxy30 cannot be cast to ...

7. Access control Exception    stackoverflow.com

When iam running RMI Server in netbeans iam getting java.security.AccessControlException: access denied (java.net.SocketPermission connect,resolve) Pls suggest what to do? Thanks in Advance

8. RMI Server Exception    stackoverflow.com

I am getting below exception from RMI when I try to run a Server which uses a remote registry. My registry cod for the main method in Server2 class is

Registry registry = ...

9. java rmi call discarded after remote exception thrown    stackoverflow.com

When using rmi ,after a call to remote metod if connection betwen two computer broke and remote exception thrown ,called metod execution discarded immediately or it continue execution until it finish ? ...

10. java rmi server side exception handling    stackoverflow.com

Do you see any possibility to log server side exceptions?
Consider such code on the server side:

catch (Exception ex) {  
    throw new IllegalStateException (ex);  
}  ...

11. Exception while executing the RMI program    stackoverflow.com

While executing any program , i am getting the unmarshalling exception , my rmiregistry is also running , does anyone of you have any idea of this exception. is there some ...

12. java.rmi.NoSuchObjectException: The object identified by xxx could not be found    stackoverflow.com

I have come across this error message, it is coming from a data connection pool, has anyone come across this before?

java.rmi.NoSuchObjectException: The object identified by: '835' could not be found. 
Either ...

13. java.rmi.MarshalException: ciphering    stackoverflow.com

i get this error when i try to call a remote interface:

java.rmi.MarshalException: error marshalling arguments; nested exception is:    java.io.NotSerializableException: javax.crypto.Cipher
These are the interfaces:
public interface Operacion extends Remote{

 String ...

14. rmi exception    coderanch.com

15. RMI Exception    coderanch.com

package rahul; import java.rmi.*; public interface Hello extends Remote{ String sayHello() throws RemoteException; } package rahul; import java.rmi.*; import java.rmi.server.UnicastRemoteObject; import rahul.*; public class HelloImpl extends UnicastRemoteObject implements rahul.Hello{ private String name; public HelloImpl(String s) throws RemoteException { super(); name = s; } public String sayHello() throws RemoteException { return "Hello World!"; } public static void main(String args[]){ try { System.setSecurityManager(new ...

16. RMI exception handling    coderanch.com

Hi, I'm writing a client/server application using RMI. The method book ticket calls remote methods. While testing the application I noticed that if I stop the server and then call this method errors are displayed on dos prompt instead of displaying message dialog. Is my logic wrong ? public void bookTickets(int recordNumber, int seats, int operatingMode) { : : try { ...

18. RMI Exceptions    coderanch.com

I am running in to some problems. Here is the setup. I have an HP Unix System running rmiregistry with a bound Controller called /OrderController. The client is a Windows NT4 system. I run the HelloClient program using the following command line: java -Djava.security.policy=Registry.policy HelloClient This works only when the 'Stub' class is in the same directory as the HelloClient class. ...

19. Need help figuring out RMI Exceptions    coderanch.com

Usually it's not a problem with the class but the interface it implements. If the registry can't see the interface for the stub, it can't "find" the class. I teach a fair number of distributed programming courses, and this is by far the most common oversight in setting up RMI. Interpreting exceptions in a distributed program is one of the more ...

20. How does RMI handle exceptions?    coderanch.com

Without looking I would assume the client will receive the exact exception. If its a checked exception I believe the client would be forced to catch it anyway, so why not pass along the unchecked exceptions too? I think remoteExceptions are reserved for things related the the remote nature of a specific issue that causes the exception and not something like ...

21. RMI - static fields and remote exceptions    coderanch.com

I have a question that should be simple for some of you to answer - I've looked at this problem quite a bit and I just can't seem to find what's wrong with this code: import java.util.Date; import java.rmi.RemoteException; import java.rmi.Remote; public interface DateFactory extends Remote { public Date build () throws RemoteException; public static final DateFactory singleton = new DateFactoryImpl ...

22. RMI Exception! Please give me a hand!    coderanch.com

23. Exception when start rmi server    coderanch.com

In this example, you are pointing java.rmi.server.codebase to your registry, which will not work. When a stub is exported to the registry, it is encoded by the server JVM with a location that the registry can use to retrieve the class definition that was used to make the stub object. The client process can get a stub from the registry, but ...

24. Rmi Exception    coderanch.com

25. MalFormed URL exception in RMI    coderanch.com

26. RMI Exception    coderanch.com

27. Strange RMI Exception!    coderanch.com

Without the stack trace and the corresponding code, it will be nearly impossible to debug this. This error comes when rmi attempts to add a live ref in the object table with an id that is already is use. By default this id is a UID that will be unique but the rmi internal classes use pre-defined ids.

29. Exceptions in Rmi program    coderanch.com

I tried http://java.sun.com/j2se/1.5.0/docs/guide/rmi/hello/hello-world.html please help to resolve these exceptions(Hello.class is available ,still...) C:\rmi2> java -Djava.security.policy=policy.all example.hello.Server Server exception: java.rmi.ServerException: RemoteException occurred in server t hread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested excep tion is: java.lang.ClassNotFoundException: example.hello.Hello java.rmi.ServerException: RemoteException occurred in server thread; nested exce ption is: java.rmi.UnmarshalException: error unmarshalling arguments; nested excep tion is: java.lang.ClassNotFoundException: example.hello.Hello at sun.rmi.server.UnicastServerRef.oldDispatch(UnicastServerRef.java:396 ) ...

31. RMI classcast exception    coderanch.com

32. RMI :remote exception    coderanch.com

you are a little terse here with details... can you show some code ?, what line/part of code is causing the exception ? does localhost resolve to your machine ? is the registry up and running, is the service bound to the registry, are you allowed to connect to the port ? are you using the good port number ? pascal ...

33. RMI and broken pipe exception    coderanch.com

35. Java.rmi.server exception    coderanch.com

Hi Please check the below code, I am receiving an error when I try to add a new client to the server. public void actionPerformed(ActionEvent e) { if(e.getSource()==ok) { try { Connection con = dbPool.getConnection(); Statement stm = con.createStatement(); ResultSet rs = stm.executeQuery("select * from Login where username='"+txtuser.getText()+"'"); if(rs.next()) { JOptionPane.showMessageDialog(null,"Existing User","WARNING",JOptionPane.WARNING_MESSAGE); txtuser.setText(""); txtpassword.setText(""); txtipadd.setText(""); txtuser.requestFocus(); } else { ServImp obj=new ...

36. rmi classes compiled. Execution of server class throwing exception    coderanch.com

import java.rmi.RemoteException; import java.rmi.registry.LocateRegistry; import java.rmi.registry.Registry; import java.rmi.server.UnicastRemoteObject; public class EchoEngine implements Echo { public EchoEngine() { } public void echo(String s9) { System.out.println(s9); } public static void main(String[] args) { //if(System.getSecurityManager()==null) System.setSecurityManager(new SecurityManager()); try { String name = "jefes"; Echo skeleton = new EchoEngine(); Echo stub = (Echo) UnicastRemoteObject.exportObject(skeleton,0); Registry registry = LocateRegistry.getRegistry(); registry.rebind(name,stub); System.out.println("EchoEngine found"); } catch(Exception e) { ...

37. RMI remote Exception    coderanch.com

I have some problem in working on java RMI in netbeans IDE6.0 when I run the server this exception is represented : Remote exception: java.rmi.ConnectException: Connection refused to host:; nested exception is: java.net.ConnectException: Connection refused: connect It seems I have no permisson to port, and I dont know how I can activate the premission I'll be thank ful if you ...

38. RMI Exception    coderanch.com

hi, my application is currently using JRE 3 and I want it upgrade to JRE 6. The problem is that when I point the JRE 6 it throws exception at application startup. Apr 3, 2009 10:00:49 AM sun.rmi.transport.tcp.TCPTransport$AcceptLoop executeAcceptLoop WARNING: RMI TCP Accept-0: accept loop for ServerSocket[addr=,port=0,localport=1360] throws java.net.SocketTimeoutException: Accept timed out at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384) at java.net.ServerSocket.implAccept(ServerSocket.java:453) at java.net.ServerSocket.accept(ServerSocket.java:421) ...

39. Exception in RMI program    coderanch.com

Hi all, I am running the following simple code for RMI MyRemote.java import java.rmi.Remote; import java.rmi.RemoteException; public interface MyRemote extends Remote { public String sayHello() throws RemoteException; } MyRemoteImpl.java package com.example.rmi; import java.rmi.Naming; import java.rmi.RMISecurityManager; import java.rmi.RemoteException; import java.rmi.server.UnicastRemoteObject; public class MyRemoteImpl extends UnicastRemoteObject implements MyRemote { public MyRemoteImpl() throws RemoteException{ } public String sayHello(){ return "Server says, 'Hello'"; } public ...

40. RMI Access Exceptions    coderanch.com

Hi, I've spent the last two days trying to make this work but am not getting anywhere. I am trying to deploy some RMI objects for testing so that we can move forward with other tasks we want to use RMI for. The problem is that I keep getting java.security.AccessControlException: access denied (java.net.SocketPermission [external_ip:1099] connect,resolve) exceptions. Here is what I've done: ...

42. RMI UnMarshal Exception.    coderanch.com

43. RMI server startup exception    coderanch.com

Hi, I have written a simple RMI program and compiled it using JDK 1.6_14. I am starting the rmi registry explicitly on a particular port which works properly. When i proceed to start the server where i am binding the remote object the program fails: Here are the programs i have written: Remote Interface package com.pack.rmi; import java.rmi.Remote; import java.rmi.RemoteException; public ...

44. RMI: FileNotFound exception and NullPointException    coderanch.com

Hi, Please have a look at the following set of codes FileChoose.java import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import java.rmi.Naming; public class FileChoose extends JFrame { private JButton choose; private JPanel southPanel, centerPanel, northPanel, scrollPanel; private FlowLayout flow1, flow2,flow3; private JFileChooser fileChooser; private int returnValue; private JLabel text; private JTextArea area; private JScrollPane scroll; private File folder, listOfFiles[], file, ...

45. java.rmi.Exception    forums.oracle.com

Yes, my registry is running fine . If i do a client and server in the same machine, no problems, but when i use two different machine then only this problem come in. I have made sure the registry and the server is up, plus i have disabled the firewall and tried including the 1099 port into the exception list. It ...

46. RMI Exception    forums.oracle.com

$ java Client Client exception: java.rmi.ConnectException: Connection refused to host:; nested exception is: java.net.ConnectException: Connection refused java.rmi.ConnectException: Connection refused to host:; nested exception is: java.net.ConnectException: Connection refused at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy0.sayHello(Unknown Source) at Client.main(Client.java:52) Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) ...

47. client/server RMI app using Command pattern: return values and exceptions    forums.oracle.com

I'm developing a client/server java app via RMI. Actually I'm using the cajo framework overtop RMI (any cajo devs/users here?). Anyways, there is a lot of functionality the server needs to expose, all of which is split and encapsulated in manager-type classes that the server has access to. I get the feeling though that bad things will happen to me in ...

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