RMi client dont lookup!
hello
I write easy RMI server and client... Every things seems look well but client dont catch reference to remote object or I dont know what...
I see "Lookuje" on console but "done" dont show...
try{
System.out.println("Lookuje");
TeleBook w = (TeleBook)Naming.lookup("rmi//loaclhost/magazine");
System.out.println("Done");
} catch(Exception e) {
e.toString();
}I have all "stub" in directory and policy, rmiregister run, please help i dont know what to do... Next step will be write all again
All source: http://ekontra.com/sadu/DEMO/RMI.rar
As your catch block has suppressed all the relevant information it is impossible to say what the problem is. Try printing something out ...
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* catch (MalformedURLException e) { e.printStackTrace(); }
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10.1.3.1 and standalone RMI client
I'm migrating our J2EE applications from 10.1.2.0.1 to 10.1.3.1.0. I also have a custom JAAS login module that is used by our applications. I have the login module working successfully and web applications that can call EJBs.
But I am unable to get a simple RMI client to call the EJBs. I can see from the server logs that the JAAS module executes successfully, but then I get a ClassNotFoundException (seems to be from the server) when the client tries to access the JNDI tree (see stack below on the client; I can't find any log relating to this event on the server).
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Any ideas?
27-Sep-2006 14:50:46 oracle.j2ee.rmi.RMIMessages EXCEPTION_ORIGINATES_FROM_THE_R
EMOTE_SERVER
WARNING: Exception returned by remote server: {0}
java.lang.ClassNotFoundException: com/evermind/server/ejb/EJBHomeObjectInfo
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at com.evermind.io.ClassLoaderObjectInputStream.resolveClass(ClassLoader
ObjectInputStream.java:33)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:153
8)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
693)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1628)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1293)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
at java.util.HashMap.readObject(HashMap.java:1013)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:919
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1813)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
713)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
at com.evermind.server.rmi.RMIClientConnection.handleListContextResponse
(RMIClientConnection.java:768)
at com.evermind.server.rmi.RMIClientConnection.handleOrmiCommandResponse
(RMIClientConnection.java:242)
at com.evermind.server.rmi.RMIClientConnection.dispatchResponse(RMIClien
tConnection.java:205)
at com.evermind.server.rmi.RMIClientConnection.processReceivedCommand(RM
IClientConnection.java:187)
at com.evermind.server.rmi.RMIConnection.handleCommand(RMIConnection.jav
a:152)
at com.evermind.server.rmi.RMIConnection.listenForOrmiCommands(RMIConnec
tion.java:127)
at com.evermind.server.rmi.RMIConnection.run(RMIConnection.java:107)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExec
utor.java:814)
at java.lang.Thread.run(Thread.java:595)
javax.naming.NamingException: com/evermind/server/ejb/EJBHomeObjectInfo [Root ex
ception is java.lang.ClassNotFoundException: com/evermind/server/ejb/EJBHomeObje
ctInfo]
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:1
00)
at com.evermind.server.rmi.RMIClientConnection.waitForJndiResponse(RMICl
ientConnection.java:334)
at com.evermind.server.rmi.RMIClientConnection.list(RMIClientConnection.
java:293)
at com.evermind.server.rmi.RMIClient.list(RMIClient.java:392)
at com.evermind.server.rmi.RMIClientContext.getListValues(RMIClientConte
xt.java:95)
at com.evermind.server.rmi.RMIContext.listBindings(RMIContext.java:444)
at com.evermind.naming.FilterContext.listBindings(FilterContext.java:91)
at com.evermind.server.ApplicationClientContext.listBindings(Application
ClientContext.java:127)
at javax.naming.InitialContext.listBindings(InitialContext.java:406)
at com.axiomsystems.common.tools.test.APITester.getEJBs(APITester.java:2
06)
at com.axiomsystems.common.tools.test.APITester.<init>(APITester.java:17
3)
at com.axiomsystems.common.tools.test.APITester.main(APITester.java:68)
Caused by: java.lang.ClassNotFoundException: com/evermind/server/ejb/EJBHomeObje
ctInfo
at com.evermind.server.rmi.RMICall.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_
SERVER(RMICall.java:109)
at com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:9
1)
... 11 moreHi Debu,
I have found the problem and a workaround in my code.
I obtained the initial context ctx with the following properties set:
Context.INITIAL_CONTEXT_FACTORY (= oracle.j2ee.naming.ApplicationClientInitialContextFactory)
Context.PROVIDER_URL (= opmn:ormi://myHost:myPort:myOC4J/myApp)
Context.SECURITY_PRINCIPAL (= my username)
Context.SECURITY_CREDENTIAL (= my password)
then I did
NamingEnumeration en = ctx.listBindings("ejb/myJndiName")
which resulted in the exception.
Changing this to
Context ctx2 = (Context)ctx.lookup("ejb/myJndiName");
NamingEnumeration en = ctx2.listBindings("");
has resolved the problem. I'm not sure why this behaves differently, I suppose it may have something to do with the fact that ctx2 is not an InitialContext object. It is an adequate workaround for my application.
Once I have an EJB reference, invoking methods over RMI works as expected.
Thanks,
Keith -
No security manager: RMI class loader disabled Error at RMI client programm
Got following error on invoking remote method from RMI client,
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: com.rmi.RmiImpl_Stub (no security manager: RMI class loader disabled)
Please let me know solution.Hello JAAZ,
I got the same error yesterday. I was a little frustrated, because the day before everything was fine...
java.rmi.UnmarshalException: error unmarshalling return; nested exception is:
java.lang.ClassNotFoundException: uk.co.it.ete.server.ETE_Server (no security manager: RMI class loader disabled)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)The solution was, that I did some refactoring and some of the classes were now in different packages. I updated the system on the client-side and now everything works again.
I think debugging RMI-applications is not as easy as "normal" applications ..
maybe this helps..
Regards
tk -
RMI client running from different machine giving error
HI all
I am trying to run the sample application getStart hello world.
I am able to run the java applet from the same machine ....
but i am get error when i am trying run client applet from the different machine .
(HelloApplet exception: access denied (java.net.SocketPermission)
client applet on machine1 and server and registory on machine2 in same lan .
i copied the Helloapplet.class and Helloclient.html to machine1.
appletviewer Helloclient.html
but the java version is different in both machines.......
can any one give some idea ....
the errror i am geting is :
HelloApplet exception: access denied (java.net.SocketPermission Neind-ws-003 res
olve)
java.security.AccessControlException: access denied (java.net.SocketPermission N
eind-ws-003 resolve)
at java.security.AccessControlContext.checkPermission(AccessControlConte
xt.java:272)
at java.security.AccessController.checkPermission(AccessController.java:
399)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:545)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1042)
at java.net.InetAddress.getAllByName0(InetAddress.java:559)
at java.net.InetAddress.getAllByName0(InetAddress.java:540)
at java.net.InetAddress.getByName(InetAddress.java:449)
at java.net.Socket.<init>(Socket.java:100)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:318)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at examples.hello.HelloApplet.init(HelloApplet.java:23)
at sun.applet.AppletPanel.run(AppletPanel.java:344)
at java.lang.Thread.run(Thread.java:484)
The helloapplet.java code is :
package examples.hello;
import java.applet.Applet;
import java.awt.Graphics;
import java.rmi.Naming;
import java.rmi.RemoteException;
public class HelloApplet extends Applet {
String message = "blank";
// "obj" is the identifier that we'll use to refer
// to the remote object that implements the "Hello"
// interface
Hello obj = null;
public void init() {
try {
System.out.println("Path looking: " +getCodeBase().getHost());
//obj = (Hello)Naming.lookup("//" +
// getCodeBase().getHost() + "/HelloServer");
obj = (Hello)Naming.lookup("//Neind-ws-003/HelloServer");
message = obj.sayHello();
} catch (Exception e) {
System.out.println("HelloApplet exception: " +
e.getMessage());
e.printStackTrace();
public void paint(Graphics g) {
g.drawString(message, 25, 50);
The helloclient.html code:
<HTML>
<title>Hello World</title>
<center> <h1>Hello World</h1> </center>
The message from the HelloServer is:
<p>
<applet
code="examples.hello.HelloApplet"
width=500 height=120>
</applet>
</HTML>Your problem is at the following line.
obj = (Hello)Naming.lookup("//Neind-ws-003/HelloServer");
The line you had commented beforehand is
//obj = (Hello)Naming.lookup("//" +
// getCodeBase().getHost() + "/HelloServer");
This worked because the applet was being retreived from the same server where the RMI server exists.
Remember, applets can only connect themselfs to the same host they are stored in and retreived from. This is because of VM, the sandbox does not allow you to connect to other machines other than the server where it resides on. If you use a applet viewer it might work if you loosen the security features. On a browser i do not belive it can be done. Maybe if you modify your security options for the VM you are able to achieve something, but personally i'm going for the "It cannot be done " answer because of what I said before.
Hope this helps
If any trouble then reply and I'll answer later.
Rui P. -
Servlet acts as an RMI client to get the current time of day
my application is servlet acts as an RMI client to get the current time of day from the DaytimeServlet RMI server so iam not getting the correctime....
import java.io.*;
import java.rmi.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class DaytimeClientServlet extends
HttpServlet
DaytimeServer daytime;
protected DaytimeServer getDaytimeServer() {
DaytimeServer stub.
if (System.getSecurityManager() == null) {
System.setSecurityManager(new
RMISecurityManager());
try {
Registry registry =
LocateRegistry.getRegistry(getRegistryHost(),
getRegistryPort());
return
(DaytimeServer)registry.lookup(getRegistryName());
catch (Exception e) {
getServletContext().log(e, "Problem getting
DaytimeServer reference");
return null;
private String getRegistryName() {
String name = getInitParameter("registryName");
return (name == null ? "DaytimeServlet" : name);
private String getRegistryHost() {
return getInitParameter("registryHost");
private int getRegistryPort() {
try { return
Integer.parseInt(getInitParameter("registryPort");
catch (NumberFormatException e) { return
Registry.REGISTRY_PORT; }
public void doGet(HttpServletRequest req,
HttpServletResponse res)
throws
ServletException, IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
if (daytime == null) {
daytime = getDaytimeserver();
if (daytime == null) {
throw new UnavailableException(this, "Could
not locate daytime");
out.println(daytime.getDate().toString());
please help me outHi lucentb,
what i observed from your code is some simple coding faults are there.. so i am giving you some test code..
i hope this will help you out.
import java.io.*;
import java.rmi.*;
import java.rmi.registry.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class DaytimeClientServlet extends HttpServlet
DaytimeServer daytime;
protected DaytimeServer getDaytimeServer()
if (System.getSecurityManager() == null)
System.setSecurityManager(new RMISecurityManager());
try {
Registry registry = LocateRegistry.getRegistry(getRegistryHost(),
getRegistryPort());
return
(DaytimeServer)registry.lookup(getRegistryName());
catch (Exception e) {
getServletContext().log(e, "Problem getting DaytimeServer reference");
return null;
private String getRegistryName()
String name = getInitParameter("registryName");
return (name == null ? "DaytimeServlet" : name);
private String getRegistryHost() {
return getInitParameter("registryHost");
private int getRegistryPort()
try
return
Integer.parseInt(getInitParameter("registryPort")); }
catch (NumberFormatException e)
return
Registry.REGISTRY_PORT;
public void doGet(HttpServletRequest req,
HttpServletResponse res)
throws
ServletException, IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
if (daytime == null) {
daytime = getDaytimeServer();
if (daytime == null) {
// Couldn't get it, so report we're
unavailable.
throw new UnavailableException(this, "Could
not locate daytime");
out.println(daytime.getDate().toString());
If you have any problem after this please send me the exceptions and problem situations with deatils codes..
Regards,
TirumalaRao
Developer Technical Support,
Sun Microsystems, India. -
Using an RMI Client to connect to a Server.
I am using an RMI Client on my PC (using Eclipse 3.2) to connect to a Server on a Linux System.
The Server is up and running and from the client side,I am reading all the server configuration into a variable and passing this variable into Naming,lookup.
String lookUp = "//" + prop.getProperty("rmi.hostName") +
":" + prop.getProperty("rmi.appPort") +
"/" + prop.getProperty("rmi.appName);
System.out.println(lookUp) // Value://17.10.222.80:40009/RMIAPP
Application a = (Application)Naming.lookup(lookUp) It is unable to connect to the Server.
Am I missing anything? Have I overlooked any point?
Thankshttp://java.sun.com/docs/books/tutorial/rmi/index.html
-
HELP! Having trouble connecting to EJB with RMI client
I've got a simple stateless session EJB deployed and I'm trying to connect
to it using a standalone
RMI client. I'm getting the following error back when I first do a
context.lookup("ejb/beanname"):
org.omg.CORBA.COMM_FAILURE: minor code: 1 completed: Maybe
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Exception.java:42)
at java.lang.RuntimeException.<init>(RuntimeException.java:47)
at org.omg.CORBA.SystemException.<init>(SystemException.java:49)
at org.omg.CORBA.COMM_FAILURE.<init>(COMM_FAILURE.java:77)
at org.omg.CORBA.COMM_FAILURE.<init>(COMM_FAILURE.java:63)
at
com.sun.corba.ee.internal.iiop.IIOPConnection.purge_calls(Compiled Code)
at com.sun.corba.ee.internal.iiop.ReaderThread.run(Compiled Code)
Any troubleshooting advice would be greatly appreciated.
BTW: After this error, iPlanet's cxs process seems to die! Until I restart
cxs I get no connection failures
of the form:
javax.naming.CommunicationException:
Cannot connect to ORB. Root exception is org.omg.CORBA.COMM_FAILURE:
minor code: 1398079490 completed: No
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.lang.RuntimeException.<init>(RuntimeException.java:47)
at org.omg.CORBA.SystemException.<init>(SystemException.java:49)
at org.omg.CORBA.COMM_FAILURE.<init>(Compiled Code)
at org.omg.CORBA.COMM_FAILURE.<init>(Compiled Code)
at com.sun.corba.ee.internal.iiop.IIOPConnection.writeLock(Compiled
Code)
at com.sun.corba.ee.internal.iiop.IIOPConnection.send(Compiled Code)
at com.sun.corba.ee.internal.iiop.IIOPOutputStream.invoke(Compiled
Code)
at
com.sun.corba.ee.internal.iiop.ClientRequestImpl.invoke(ClientRequestImpl.ja
va:74)
at
com.sun.corba.ee.internal.corba.ClientDelegate.invoke(ClientDelegate.java:16
0)
at
com.sun.corba.ee.internal.corba.InitialNamingClient.resolve(InitialNamingCli
ent.java:199)
at
com.sun.corba.ee.internal.corba.InitialNamingClient.cachedInitialReferences(
InitialNamingClient.java:278)
at
com.sun.corba.ee.internal.corba.InitialNamingClient.resolve_initial_referenc
es(InitialNamingClient.java:187)
at
com.sun.corba.ee.internal.corba.ORB.resolve_initial_references(ORB.java:1422
at
com.sun.corba.ee.internal.POA.POAORB.resolve_initial_references(POAORB.java:
541)
at com.sun.jndi.cosnaming.CNCtx.setOrbAndRootContext(CNCtx.java:252)
at com.sun.jndi.cosnaming.CNCtx.initUsingUrl(Compiled Code)
at
com.sun.jndi.cosnaming.CNCtx.initOrbAndRootContext(CNCtx.java:185)
at com.sun.jndi.cosnaming.CNCtx.<init>(CNCtx.java:72)
.... stuff deleted....
Is RMI client support in iPlanet 6.0 truly this buggy or am I missing
something?
Jack Profit
[email protected]Make sure to review the Converter sample and employ all of the workarounds
listed there.
David
Jack Profit wrote:
I've got a simple stateless session EJB deployed and I'm trying to connect
to it using a standalone
RMI client. I'm getting the following error back when I first do a
context.lookup("ejb/beanname"): -
RMI client-side - how to encrypt,decrypt in client-side
I write javacard RMI style. My problem is...
Source code below is work when it write in applet (card - side)
but in client-side (reader -side) I copy it to client - side code and test to run, if fail --> throw exception 0x3 - javacard.security.CryptoException.NO_SUCH_ALGORITHM
It seem to be "javacardx.crypto" and "javacard.security" is make for use in applet in card only. Did I misunderstand?
if it make for use in applet only, how is possible to do like this " card use privatekey to sign message and send to reader , reader use card's publickey to verify that card sign this signature or not."
or
"card use reader's publickey to encrypt message and send to reader, then reader use privatekey to decrypt message (reader authencate itself) "
because I can't do any of cipher , keybuilder in RMI-client side(reader)
Cipher.getInstance(Cipher.ALG_RSA_PKCS1,false);
it will throw nullPointerException
and if (change false to true)
Cipher.getInstance(Cipher.ALG_RSA_PKCS1,true);
throw exception 0x3 - javacard.security.CryptoException.NO_SUCH_ALGORITHM
after that I swap this line with
pri_key = (RSAPrivateKey) KeyBuilder.buildKey(KeyBuilder.TYPE_RSA_PRIVATE,KeyBuilder.LENGTH_RSA_512, false);
since it will do this first (i swap the line already) it also throw exception 0x3 - javacard.security.CryptoException.NO_SUCH_ALGORITHM
also be the same result with swap
kp = new KeyPair(KeyPair.ALG_RSA,(short)KeyBuilder.LENGTH_RSA_512 );
to a first line
it throw exception 0x3 - javacard.security.CryptoException.NO_SUCH_ALGORITHM
Please help me
RSAPrivateKey pri_key;
RSAPublicKey pub_key;
KeyPair kp;
Cipher RSAcipher;
RSAcipher = Cipher.getInstance(Cipher.ALG_RSA_PKCS1,false);
pri_key = (RSAPrivateKey) KeyBuilder.buildKey(KeyBuilder.TYPE_RSA_PRIVATE,KeyBuilder.LENGTH_RSA_512, false);
pub_key =(RSAPublicKey) KeyBuilder.buildKey(KeyBuilder.TYPE_RSA_PUBLIC,KeyBuilder.LENGTH_RSA_512, false);
kp = new KeyPair(KeyPair.ALG_RSA,(short)KeyBuilder.LENGTH_RSA_512 );
kp.genKeyPair();
pri_key = (RSAPrivateKey) kp.getPrivate();
pub_key = (RSAPublicKey) kp.getPublic();
//ENCRYPT
RSAcipher.init(pri_key, Cipher.MODE_ENCRYPT);
t_cipherLengthRSA = RSAcipher.doFinal(plaintxt,(short)0, (short)plaintxt.length, t_cipherText, (short)0);
//DECRYPT
RSAcipher.init(pub_key, Cipher.MODE_DECRYPT);
RSAcipher.doFinal(ciphertxt,(short)0,(short) t_cipherLengthRSA, temp1, (short)0);I write javacard RMI style. My problem is...
Source code below is work when it write in applet (card - side)
but in client-side (reader -side) I copy it to client - side code and test to run, if fail --> throw
exception 0x3 - javacard.security.CryptoException.NO_SUCH_ALGORITHMYou can not share code between card and client. On the card use the classes of javacardx.crypto and on the client side those of javax.crypto and java.security.
It seem to be "javacardx.crypto" and "javacard.security" is make for use in applet in card only. That is right.
if it make for use in applet only, how is possible to
do like this " card use privatekey to sign message
and send to reader , reader use card's publickey to
verify that card sign this signature or not." or
"card use reader's publickey to encrypt message and
send to reader, then reader use privatekey to decrypt
message (reader authencate itself) "On each platform you have classes that provide the same cryptographic operations but the interface of these classes is different (because of the limitations of the java card platform).
because I can't do any of cipher , keybuilder in
RMI-client side(reader)Use the java.security.KeyFactory instead.
Cipher.getInstance(Cipher.ALG_RSA_PKCS1,false);
it will throw nullPointerException
and if (change false to true)
Cipher.getInstance(Cipher.ALG_RSA_PKCS1,true);
throw exception 0x3 -
javacard.security.CryptoException.NO_SUCH_ALGORITHMCryptographic support on java cards is optional. Not every card supports every algorithm. Try to use another algo.
Jan -
RMI server object lookup in a session bean
Hi all,
I am getting MarshalException when I call java.rmi.Naming.lookup() in a session
bean. Following is the code and exception. Please note that I am using java.rmi
package instead of weblogic.rmi and that both the session bean and RMI server
object (a startup class) is deployed on the same machine.
Thanks for your help in advance.
// a simple, replica-aware session bean method
// some code here
try {
MediatorInterface mediator = (MediatorInterface) java.rmi.Naming.lookup("rmi://localhost:7001/TestMediator);
catch (Exception e) {
// log the exception
The exception:
java.rmi.MarshalException: Error marshaling transport header; nested exception
i
s:
java.io.EOFException
java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:224)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:206
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:318)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at test.mgmtop.CreateNetworkOpHandler.execute(CreateNetworkOpHandler.jav
a:88)
at test.mgmtop.CreateNetworkOpHandler.perform(CreateNetworkOpHandler.jav
a:28)
at test.ejb.MgmtServiceBean.create(MgmtServiceBean.java:57)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl.create(MgmtServiceSession_i
di8yo_EOImpl.java:46)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl_WLSkel.invoke(Unknown Sourc
e)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:346)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerR
ef.java:114)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:300)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServic
eManager.java:762)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:295)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
.java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)Hi Pyung,
How about trying this instead:
InitialContext ctx = new InitialContext();
MediatorInterface mediator = (MediatorInterface) ctx.lookup("TestMediator");
This assumes your startup class binds the Mediator to the JNDI name "TestMediator".
- Matt
Pyung Yoon wrote:
Hi all,
I am getting MarshalException when I call java.rmi.Naming.lookup() in a session
bean. Following is the code and exception. Please note that I am using java.rmi
package instead of weblogic.rmi and that both the session bean and RMI server
object (a startup class) is deployed on the same machine.
Thanks for your help in advance.
// a simple, replica-aware session bean method
// some code here
try {
MediatorInterface mediator = (MediatorInterface) java.rmi.Naming.lookup("rmi://localhost:7001/TestMediator);
catch (Exception e) {
// log the exception
The exception:
java.rmi.MarshalException: Error marshaling transport header; nested exception
i
s:
java.io.EOFException
java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:224)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:206
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:318)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at test.mgmtop.CreateNetworkOpHandler.execute(CreateNetworkOpHandler.jav
a:88)
at test.mgmtop.CreateNetworkOpHandler.perform(CreateNetworkOpHandler.jav
a:28)
at test.ejb.MgmtServiceBean.create(MgmtServiceBean.java:57)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl.create(MgmtServiceSession_i
di8yo_EOImpl.java:46)
at test.ejb.MgmtServiceSession_idi8yo_EOImpl_WLSkel.invoke(Unknown Sourc
e)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:346)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerR
ef.java:114)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:300)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServic
eManager.java:762)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.jav
a:295)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest
java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133) -
I am facing Java RMI problem on Suse Linux.
RMI server running on solaris and RMI client running on Solaris ---> works fine
RMI server running on solaris and RMI client running on Linux ---> gives error
Pls note that RMI server running fine. When invoking remote method from RMI client on Suse Linux, I get following error.
Java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException: RemoteVtskImpl_Stub
Any help/pointers will be useful.Even we tried setting the CLASSPATH to point to those jar files. But still the problem persist.
At run time is there any way to see what all the _stub files are downloaded in the JVM at the client machine (linux machine in our case) from the server machine (solaris machine in our case). -
Hi,
I am trying to use a jApplet as an rmi client. However, either creating a new instance of the class i created, that extends jApplet, in the rmi client class i created or creating a new instance of the rmi client in the class that extends jApplet results in error.
What is the correct way to go about doing this? I developed the jApplet thinking it could be simply used with the rmi client.
instanciating the rmi client in the jApplet class gives :
java.lang.OutOfMemory Error
instanciating the jApplet class in the rmi client class gives other errors I am unable to reproduce at the moment :(
thanks for any help
-Paulo Murphy de FreitasHi,
I am trying to use a jApplet as an rmi client. However, either creating a new instance of the class i created, that extends jApplet, in the rmi client class i created or creating a new instance of the rmi client in the class that extends jApplet results in error.
What is the correct way to go about doing this? I developed the jApplet thinking it could be simply used with the rmi client.
instanciating the rmi client in the jApplet class gives :
java.lang.OutOfMemory Error
instanciating the jApplet class in the rmi client class gives other errors I am unable to reproduce at the moment :(
thanks for any help
-Paulo Murphy de Freitas
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