I've got an RMI call defined as:
public void remoteGetCustomerNameNumbers(ArrayList<String> customerNumberList, ArrayList<String> customerNameList) throws java.rmi.RemoteException;
The function does a database lookup and populates the two ArrayLists. The calling function gets nothing. I ... |
I have some code which I am making available via RMI.
If my program terminates abnormally, I won't have called Naming.unbind(), and a reference to the object will presumably be hanging around ... |
Is there a tool which traces & logs all RMI activity of a Java application?
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I want to distribute a webstart application which uses RMI.
I want to avoid to ask the user the address of the RMI server, because the website that distributes the application is ... |
I'm having a problem sending java.util.Date objects over RMI, to and from machines in different timezones.
For example, a client in Germany will send a date object to a server in ... |
I have two application which communicates by using RMI objects.
I do have an interface, an implementation class and the generated stub class.
I recognized, that some changes in the impl class take ... |
We have a product built on the Client-Server architecture. Some details about the technology stack used.
- Client - Java Swing
- Server - RMI
- Java Database - Oracle
The clients are located ... |
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I am want to have controlled if my rmiport is available and I can have my connection or if it is busy, not available or wathever. I know if it cannot ... |
I have a existing java based system which uses RMI. I do not have access to change this system.
I want to be able to call the RMI api methods directly ... |
I have a client that starts a long running process on the server. At regular intervals, I'd like to show the user what's happening in the background. The most simple approach ... |
How can I sniff and analyze Java RMI traffic ? There is only very partial solution in wireshark. I need to know exactly which methods where called and which args where ... |
What effect will Java RMI have on the following line of code?
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Its not working for me in an RMI call. I am new to java and RMI so please elaborate ... |
Recently I have needed to use RMI, and I know enough for what I need to do, but one thing is intriguing me as I revisit this topic. Is it possible ... |
I realize that it is a valid part of a variable name, but I've never seen variable names actually use the symbol $ before.
The Java tutorial says this:
Additionally, the ... |
I have been developing a (somewhat complex) application using RMI to read a file and JSON its contents. I have been coding this app on Netbeans 6.7, therefore I have a ... |
I have seen this question (answer: JGroups) and I'm thinking about implementing something with JavaGroups or straight RMI but speed is of the essence. I'm not sending large amounts of ... |
Hi
I like to know what is rmic in RMI and how does it create proxies for me..
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Is there a concept or implementation of RMI like concept in .net?
Can we program network programming in C#/VB just like RMI in java?
Such as stub,skeleton,registry like concepts.
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I've been able to get the java RMI running in linux / windows through some command prompt action (http://java.sun.com/javase/6/docs/technotes/guides/rmi/hello/hello-world.html goes into the gory details) but wondering if there is a way ... |
I want to create a very simple RMI code which just share the desktop.
I have created my classes and also remote interface.in the Share class ,I have an execute method which ... |
i want to write a rmi application which the server has the ability to run different programs like media player in the client, and even shut them down. how can i ... |
i want to write a java rmi application which the server has the ability to share its desktop between several clients. what is its main method to share desktop? is ... |
I have read a lot about RMI call back but I need to know the advantages of using that and is there any special code for making RMI callback?
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what are the advantages and disadvantages of RMI?
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Was wondering what kind of software and hardware component cant fail in a rmi program?
so for example in a client server model when a client invokes an object in the server?
thanks
... |
how to do the file transfer using RMI in java?
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I successfully created an RMI service and client. I can call methods and so on. But now I wanted to try the following: I wanted a standard Java object like a ... |
my prof. asked me execute a RMI program.
the compilation of client and server programs are perfect.it didn't generate any error.
but when i give 'rmic implementation class-name',it shows that no class found.
i ... |
Hi
I am developing an algorithm to find out a fraud-detecting system using a math formula. I need to work the program in different computer. How can I do that in Java? ... |
If creating an IM platform in Java, which would be a better way to implement communications between the clients and server?
I was thinking either RMI or just a socket connection...
Advice please,
Thanks
... |
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassCastException: java.io.ObjectStreamClass cannot be cast to java.lang.String
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:359)
at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
at com.nxl.smssession.SessionRMI.<init>(SessionRMI.java:33)
at com.nxl.smssession.Main.main(Main.java:33)
Caused by: java.lang.ClassCastException: java.io.ObjectStreamClass cannot be cast to java.lang.String
Can someone explain why ... |
After recording just the appearance of the logon window of our Java app in LR/VUgen 9.51 using the RMI protocol, the resulting script replays with a java.lang.ArrayIndexOutOfBoundsException. The code fragment looks ... |
We have an Java ERP type of application. Communication between server an client is via RMI. In peak hours there can be up to 250 users logged in and about 20 ... |
I have a simple RMI 'compute' server application (similar to this) that accepts objects of some interface type from clients over RMI, executes the compute() method of the ... |
I have a Java application I've been working on for a year or two now. I would like to create a very simple set (with potential to add complexity later) of ... |
I'm trying to run jGuru examples of RMI from the tutorial at (http://java.sun.com/developer/onlineTraining/rmi/RMI.html) but they didn't compile in the command line, so I can't run rmic and advance the tutorial:
$javac Calculator.java
$javac ...
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I have an application FooApplication (code in foo.jar) with a plugin BarPlugin (code in foo-bar-plugin.jar). The application instantiates an instance of the plugin dynamically. It works great.
FooApplication has some functionality ... |
I'm using RMI to allow access to my Java application via MATLAB, which runs in another JVM. MATLAB has a nice interface to print the methods of a Java object. But ... |
I have a problem with running my server application which registers itself in rmi registry. In Remote interface I have method which returns JasperPrint. The exception is thrown when server calls:
server ...
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We have a Client/Server application which communicates over RMI. The server sends HashMaps to the client. All works well, however when sending large HashMaps, transfer times can be slow.
Is there any ... |
i want to create a P2P application where there is no central server and clients communicate directly with each other. Does RMI support P2P or not ...
Please do comment and also ... |
I just finished a small program with java rmi and somehow it doesn't work. Everytime I want to start the server I'm getting the MarshalException. Are there any important points that ... |
Is it true that the rmi interface compiler is not needed for java 1.5 or newer and that just compiling the java file where the UnicastRemoteObject is defined with javac is ... |
Can someone verify if i understand java RMI correctly?
If I had:
public class Server extends UnicastRemoteObject
{
public Server() throws RemoteException
{
...
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Im looking into RMI for a university project, and ive run into a bit of a problem. From what ive read, java version 5 and up should generate the necessary stub ... |
I am trying to call a method on server-side implemented by Java RMI. This method will open, read and do some data manipulation in the excel spreadsheet.
Workbook wb = `WorkbookFactory`.create(inp);
This ... |
I get a NullPointerException at a line on which just a simple null check takes place.The line is the following:
if(routingTable[commonBitGroups][nextNumberOfOther-1]==null)
I verify that the array is not null just before this line.
commonBitGroups ... |
does rmi belong to the object oriented middleware type ?
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RMI, Remote Method Invocation, works only on Java object methods. In order to make an object remoteable, it has to be exported for stub generation, bind to a rmiregistry, and so ... |
We want to write an application that query a database remotely. the received data could be xml, txt or image.
we have our own server(server 2003_iis6). we can have our own application ... |
I have a project where I am using Java RMI to make objects remotely accessable to other objects. I need to make the following class remote:
public interface MarketBB extends Remote
{
...
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We're doing some prototyping work and we're wondering if it is possible to interrupt a thread that performed an RMI call. If we call interrupt() on this thread, would it throw ... |
I need an RMI registry that makes the service accessible from outside my machine, while still being able to refuse a connection based on the IP of the client. The following ... |
I am trying to learn how RMI works in Java (complete beginner at RMI) and I have been looking at some examples which show how to add two numbers together. The ... |
What is the differences between RMI and stored procedure , both are RPC I think , but what is the differences.
Regards
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is there a way to know what server/client invoked a method on the server?
Problem:
I have a completely connected graph of server, and when a command comes in from a client on ... |
I have the following pesudocode:
public void sendPB(ObjectId userId, Message.Builder mb) {
if (userId is logged in to server) {
set mb.ackId ...
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I want to experiment with Activatable objects in RMI. Is there a simple example somewhere that works? I'm trying to use Oracle's tutorial but I get java.security.AccessControlException: access denied ... |
I'm working on a reflection system for use with KryoNet RMI to allow me to do unreliable object calls. However, this relies on using an annotation to mark various methods as ... |
Is there any way to determine the caller process in Callee remote method.
Suppose there are 3 clients and a server and server has one remote method which is called by all ... |
I am making an Instant Messenger using RMI. I got parts of it working and the code seems right but I am still getting an error when I run ChatClient saying ... |
I am working on a development of a paperless system for leaves application and for asking queries and for scheduling meetings. It will have 3 categories of users namely Admin ... |
I'm doing a RMI call within the one .ear, yet when I check the class loader of an object returned by the RMI call, it gives another .ear's class loader. Can ... |
In the comments to this question: Testing Hessian remoting-servlet.xml
Skaffman labeled Hessian a dead duck. So question is: what to use as a replacement.
Criteria for evaluation are:
- a drop in replacement would ...
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I am following this tutorial about Java RMI http://download.oracle.com/javase/tutorial/rmi/TOC.html
However when I try to start the server I receive the following error:
ComputeEngine exception:
java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
... |
I am using a 64-bit JVM (Oracle), when i try to allocate buffer sizes larger than 256 MB it complains and throws a "segmentation fault" error. I and allocation direct ... |
I'm trying to create a system that will, on every RMI call,
1) gather some data about the current local system state (let's say the system time)
2) serialize it and transparently ... |
In want to diagnose a bottleneck which happens when my client is talking to a server on the other side of the world. I'd like to run the server on my ... |
Consider these two functions:
Function A takes inputStream as parameter.
public void processStream(InputStream stream)
{
//Do process routine
}
Function B loads a file content to pass it to Function A as InputStream.
pulic void loadFile()
{
...
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I've to develop an application running RMI between a server and a client.
Initially, the server multicasts "alive" messages and clients respond with their current status(IP and usage statistics).
When a button ... |
I'm working on a program that uses RMI for 2 connections, one from client to server, and onether for communication between 2 virtual machines on the client.
It seems the RMI ... |
I have created a simple RMI application, that just send a message to RMI server.But when sending a message i got the error message.I am using eclipse for running the programs.
sending ... |
I've successfully implemented the single server-client example here on two different physical machines. I would like to try out this scenario between 2 or more machines :
- Machine A sends ...
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I'm trying to run the sample code from this Sun tutorial:
http://download.oracle.com/javase/6/docs/technotes/guides/rmi/hello/hello-world.html
I've copied all their code exactly into an Eclipse project and run 'rmiregistry &' from terminal (I'm running OSX).
When ... |
============Server Interface:Server.java================
import java.rmi.*;
public interface Server extends Remote
{
void register (Client cl) throws RemoteException;
void broadcastCord () throws RemoteException;
}
=============Server Class:ServerImpl.java===============
import java.rmi.*;
import java.rmi.server.*;
import ...
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When running i am getting this error:
java MyRemoteClient
java.lang.ClassCastException: $Proxy2 cannot be cast to Account
`enter code here`at MyRemoteImpl_Stub.addAccount(Unknown Source)
at MyRemoteClient.main(MyRemoteClient.java:11)
at ...
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I created a simple Java RMI application in netbeans 7.0.1 ( win 7 + jdk 7u1). I have two separate projects:
RMI_Client contains:
MyClient class:
package rmi_client;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
public class MyClient
{
...
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Just Java 1.2 (same as Just Java 2). By Peter van der Linden (I think he's the Java kernel team lead - so no one knows Java better). Whenever I want to pick up something new in Java, or brush up, I go to this book first. The guy is an excellent writer. |
No idea what RMI is or does. Paul Wheaton suggested that I post it. I have an RPG back ground not C so Java is very greek to me. Sorry for the style snafus, Paul, I don't even understand the terminology yet, but I'm tryin. Any good tips on Javadoc would be appreciated. Thanks, Ray |
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Hi Prashz, To put simply, Remote Method Invocation (RMI)facilitates object function calls between Java Virtual Machines (JVMs). JVMs can be located on separate computers - yet one JVM can invoke methods belonging to an object stored in another JVM. Methods can even pass objects allowing dynamic loading of new classes as required. Both RMI and CORBA are different approaches to Distributed ... |
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Seems to be a common question! For an object to be passed using RMI it must be serializable. ResultSet isn't serializable, I've heard this is because most of the data is actually maintained in the database until it is accessed with the next() method. In order to return the results you have to create your own class which mimics the functionality ... |
86. RMI_help coderanch.com |
Hi All I am totally new to RMI. I have the following question about running RMI on a single machine. Do I need a webserver running on the system in order to try the RMI samples/tryouts I have ? I am following the RMI tutorial on the Sun website. I think I am missing something serious here. Please help. ARSKumar. |
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hi, I just start to learn some RMI. I have problems when I run the sample code there. This is from http://www.execpc.com/~gopalan/java/java_rmi.html I just follow the instruction from the above site, and this is basic information. Server site: StockMarket(interface), StockMarketImpl(class),StockMarketServer.java(class), policy.all(security) What I am doing is try to run the code in local machine. There is one sentence in StockMarketImpl.java: Naming.rebind(name, ... |
The whole idea with RMI is that you pass parameters to a method just like you would if the object was local. It is the responsibility of the RMI stub and skeleton to convert these parameters to a serial form and transmit them. And then to get back the result the same way. |
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Hi Mohamed I am sorry I dont have an answer but instead I have a question . U said One solution was to put rmi.zip along with the browser VM classes. I want to know where I can get rmi.zip file and how do i put it along with the browser VM classes. What are VM classes? Your reply will be ... |
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98. RMI ... coderanch.com |
Hello freinds, I have a written a java application using RMI in which I am trying to fetch data from a site. In the Server implementation of the application I'm fecthing the data and the client application is to pick it up using the remote method of the server application. But because my system is behind a proxy, I am not ... |
I am having an applet client which has to lookup an remote server object on a server within a firewall. The firewallport 900 has been given full access. The server objects are binding to the tnameserver on the same machine. Even the webserver where my html and applet class file are located also on the same machine . my client is ... |