RMI server error under Linux

Hi all,
I'm not excatly sure, whether this is the right forum. Anyway, my problem is this:
I've written a JApplet that calls several methods over RMI. The RMI server is up and running properly. Most of the functions work well. One that initializes a JTree, however, causes problems. I get the following error message and I am stumped:
java.rmi.ServerError: Error occurred in server thread; nested exception is:
     java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
     at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:289)
     at sun.rmi.transport.Transport$1.run(Transport.java:148)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
     at java.lang.Thread.run(Thread.java:536)
     at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
     at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
     at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
     at de.uni_mannheim.wifo2.mlearning.portal.ServerFunctions_Stub.buildStructure(Unknown Source)
     at de.uni_mannheim.wifo2.mlearning.portal.CourseHandlerC.initialize(CourseHandlerC.java:68)
     at de.uni_mannheim.wifo2.mlearning.portal.MobilUM.actionPerformed(MobilUM.java:641)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1764)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1817)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:419)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257)
     at javax.swing.AbstractButton.doClick(AbstractButton.java:289)
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1109)
     at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItemUI.java:943)
     at java.awt.Component.processMouseEvent(Component.java:5093)
     at java.awt.Component.processEvent(Component.java:4890)
     at java.awt.Container.processEvent(Container.java:1566)
     at java.awt.Component.dispatchEventImpl(Component.java:3598)
     at java.awt.Container.dispatchEventImpl(Container.java:1623)
     at java.awt.Component.dispatchEvent(Component.java:3439)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
     at java.awt.Container.dispatchEventImpl(Container.java:1609)
     at java.awt.Component.dispatchEvent(Component.java:3439)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
Caused by: java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
     at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
     at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:125)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:140)
     at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
     at java.awt.Font.initializeFont(Font.java:309)
     at java.awt.Font.<init>(Font.java:345)
     at javax.swing.plaf.metal.DefaultMetalTheme$FontDelegate.getFont(DefaultMetalTheme.java:195)
     at javax.swing.plaf.metal.DefaultMetalTheme.getFont(DefaultMetalTheme.java:153)
     at javax.swing.plaf.metal.DefaultMetalTheme.getUserTextFont(DefaultMetalTheme.java:137)
     at javax.swing.plaf.metal.MetalLookAndFeel$FontActiveValue.createValue(MetalLookAndFeel.java:1405)
     at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:196)
     at javax.swing.UIDefaults.get(UIDefaults.java:126)
     at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
     at javax.swing.UIDefaults.getFont(UIDefaults.java:346)
     at javax.swing.UIManager.getFont(UIManager.java:491)
     at javax.swing.plaf.basic.BasicTreeUI.installDefaults(BasicTreeUI.java:596)
     at javax.swing.plaf.basic.BasicTreeUI.installUI(BasicTreeUI.java:530)
     at javax.swing.plaf.metal.MetalTreeUI.installUI(MetalTreeUI.java:86)
     at javax.swing.JComponent.setUI(JComponent.java:449)
     at javax.swing.JTree.setUI(JTree.java:551)
     at javax.swing.JTree.updateUI(JTree.java:567)
     at javax.swing.JTree.<init>(JTree.java:522)
     at javax.swing.JTree.<init>(JTree.java:498)
     at javax.swing.JTree.<init>(JTree.java:481)
     at de.uni_mannheim.wifo2.mlearning.portal.ServerFunctions.buildStructure(ServerFunctions.java:237)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
     at sun.rmi.transport.Transport$1.run(Transport.java:148)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
     at java.lang.Thread.run(Thread.java:536)
The entire system had been tested under a Windows XP environment and works without a glitch. Now I've installed the exact same system under unix and this happens!
If anyone has an idea I would be very grateful!
Kind regards,
Falk

Hi again,
alternately I get another error doing the excat same thing:
java.rmi.ServerError: Error occurred in server thread; nested exception is:
     java.lang.NoClassDefFoundError
     at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:289)
     at sun.rmi.transport.Transport$1.run(Transport.java:148)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
     at java.lang.Thread.run(Thread.java:536)
     at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
     at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
     at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133)
     at de.uni_mannheim.wifo2.mlearning.portal.ServerFunctions_Stub.buildStructure(Unknown Source)
     at de.uni_mannheim.wifo2.mlearning.portal.CourseHandlerC.initialize(CourseHandlerC.java:68)
     at de.uni_mannheim.wifo2.mlearning.portal.MobilUM.actionPerformed(MobilUM.java:641)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1764)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1817)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:419)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:257)
     at javax.swing.AbstractButton.doClick(AbstractButton.java:289)
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1109)
     at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItemUI.java:943)
     at java.awt.Component.processMouseEvent(Component.java:5093)
     at java.awt.Component.processEvent(Component.java:4890)
     at java.awt.Container.processEvent(Container.java:1566)
     at java.awt.Component.dispatchEventImpl(Component.java:3598)
     at java.awt.Container.dispatchEventImpl(Container.java:1623)
     at java.awt.Component.dispatchEvent(Component.java:3439)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
     at java.awt.Container.dispatchEventImpl(Container.java:1609)
     at java.awt.Component.dispatchEvent(Component.java:3439)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
Caused by: java.lang.NoClassDefFoundError
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:140)
     at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)
     at java.awt.Font.initializeFont(Font.java:309)
     at java.awt.Font.<init>(Font.java:345)
     at javax.swing.plaf.metal.DefaultMetalTheme$FontDelegate.getFont(DefaultMetalTheme.java:195)
     at javax.swing.plaf.metal.DefaultMetalTheme.getFont(DefaultMetalTheme.java:153)
     at javax.swing.plaf.metal.DefaultMetalTheme.getUserTextFont(DefaultMetalTheme.java:137)
     at javax.swing.plaf.metal.MetalLookAndFeel$FontActiveValue.createValue(MetalLookAndFeel.java:1405)
     at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:196)
     at javax.swing.UIDefaults.get(UIDefaults.java:126)
     at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
     at javax.swing.UIDefaults.getFont(UIDefaults.java:346)
     at javax.swing.UIManager.getFont(UIManager.java:491)
     at javax.swing.plaf.basic.BasicTreeUI.installDefaults(BasicTreeUI.java:596)
at javax.swing.plaf.basic.BasicTreeUI.installUI(BasicTreeUI.java:530)
     at javax.swing.plaf.metal.MetalTreeUI.installUI(MetalTreeUI.java:86)
     at javax.swing.JComponent.setUI(JComponent.java:449)
     at javax.swing.JTree.setUI(JTree.java:551)
     at javax.swing.JTree.updateUI(JTree.java:567)
     at javax.swing.JTree.<init>(JTree.java:522)
     at javax.swing.JTree.<init>(JTree.java:498)
     at javax.swing.JTree.<init>(JTree.java:481)
     at de.uni_mannheim.wifo2.mlearning.portal.ServerFunctions.buildStructure(ServerFunctions.java:237)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
     at sun.rmi.transport.Transport$1.run(Transport.java:148)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
     at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
     at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
     at java.lang.Thread.run(Thread.java:536)
Thanks again!

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The key was this:
The identical code works just
fine on RedHat 6.2 (kernel 2.2.14 or so) - same 1.4.1."Identical" really was - I'd used a tar archive to make a complete copy of the code running on the RH 6.2 system. The copy included the file log/Logfile.1, written by rmid (or rmiregistry). This contains lots of IP addresses; I suspect it's more than a log. Since the original machine and the clone are separated by a firewall, attempts by the clone to contact the original failed.
Deleting the "log" directory made the problem go away.

Missing data in server monitor under linux and solaris

Some metrics are not displayed in our environments, specifically under the statistics tab, request statistics, active coldfusion thread, we always have a zero line. Also under memory usage, "cf threads by memory usage" is always empty. I have all three buttons at the top checked so they are monitoring. Is there something else I'm doing wrong?
Environment 1 : dell2850->centos5->vmware->centos5->32bitJDK5->tomcat6->coldfusion8
Environment 2 : sun5120->solaris10->64bitJDK5->tomcat6->coldfusion8
I'm specifically wanting thread info to check if I should increase the defaults in CFIDE configuration. Most everything on the server is being delivered faster now that we are using a 64bit JVM and have moved to solaris in production (from windows). But there are some sections of our cfm logic that are taking much longer now (2000% longer)
Thanks
Ahnjoan

Hi all,
does anyone can write some info why java Threads are
recorded in the list of process (ps -ef) when you run
on a Linux box, but not the same when you run on
Solaris ? Which Thread support is more
performant/stable that on Linux or that on Solaris?
Thanks
FrancescoLinux treats kernell threads as light weight processes and displays them as if they are actual processes - they of course are not, so the results of 'ps' can be misleading. Solaris fully differentiates between its three concepts of threads, lightweight processes and processes and 'ps' only shows actual processes.
Both implementations in Linux and Solaris perform well.
By the way, Solaris 8 has an optional, slightly different thread model than earlier versions of Solaris (in fact it is more like NT's) and that can be more efficient for JVM's or other multithreaded systems running on SMP systems. It can also be worse - your mileage may vary.

Install ECC 6.0 and Solution Manager on same server Error (MaxDB/Linux)

I have installed Solution manager on one server and then ECC 6 also in the same server with another SID. during the installation it errored out at phase "SLD configuration" with UME error , J2EE_ADMIN locked etc..we checked the user id and noticed it got locked in ECC 6 system and we unlocked it.
But after the ECC installation the solution manager java engine is not coming up error with "com.sap.security.core.ume.service failed" error. Prior to the ECC installation the Solution Manager J2EE was working.
thanks in advance
Mathew

error in the /j2ee/cluster/server0/log/defaultTrace.1.trc
is as follows
#1.5#00137256A483001E0000001700006F190004163784D40864#1150327614343#com.sap.engine.core.Framework##com.sap.engine.core.Framework#######SAPEngine_System_Thread[impl:5]_61##0#0#Fatal#1#/System/Server#Plain###Critical shutdown was invoked. Reason is: Core service com.sap.security.core.ume.service failed. J2EE Engine cannot be started.#
When I looked at using jcmon the dispacher is up and the server0 and SDM is down

My RMI Server application Not work under Linux: Exception: Connection reset

Under Red Hat Linux 8.0 my RMI server application, when I try to bind the Impl class, sends me the exception:
"java.rmi.UnmarshalException: Error unmarshaling return header;
nested exception is: java.net.SocketException: Connection reset".
And it works under Windows 2000 without any problem.
What could it be?
Many thanks,
Ales.

Hi Ales,
Try to change your /etc/hosts file, and change the line that says :
127.0.0.1 MDK localhost.localdomain localhost
(where MDK is the machine's name).
Remove MDK from this line and add a new one mapping it to a 'real' outside IP address, visible (check firewall!!!) to the network from where you are approaching the Linux Box
Good luck,
Aart

RMI Server Object Startup Error

Greetings,
I am trying to set up a computer lab at my college. I currently have one server running Slackware 9.1 and one client (my laptop) running Windows XP Home. I can telnet and ftp from my client. I can also access the Apache web server running on the Linux machine. I recently discovered RMI as a way to do distributed computing (we are trying to build a proof-of-concept distributed computing system). However, I cannot get RMI to work. When I take the code I wrote and use my laptop as both client and server, everything works. However, when I try to use both machines, it does not work. I want the Linux box to be the server and my laptop to be the client. After compiling my RMI server class (the class that registers the server object for use under RMI) and running it by typing java RemServer, I get a strange error (see bottom of this message). I cannot find this error anywhere else on the internet. I have the rmiregistry program running. I do everything the same as when I do RMI on just my laptop. Please help!
RemServer Remote Exception: java.rmi.UnmarshalException: Error unmarshaling return; nested exception is:
java.net.SocketException: Connection reset
[Ljava.lang.StackTraceElement;@13d93f4
Thanks,
Jason

One thing I did discover is that I have not been explicitly starting rmid. Some documentation says that rmi starts rmid automatically. If I need to start rmid, what parameters to I need to pass to it?
Thanks,
Jason

Errors occurs when localizing an Struts webapps in Tomcat5.0 under Linux.

I have an Struts webapps,which was deployed correctly and ran well in my Tomat5.0 under win2K.
Then i copied the webapps to the Tomcat5.0_HOME/webapps/ under Linux.
Then i copied all the struts *.jar files to the Tomcat5.0_HOME/common/lib.
With the web.xml and struts-config.xml configed well,i restarted the Tomcat and then found my webapps existing in the Tomcat5.0 by browsing the manager page of the container,and i found that my webapps run well.(The start hyper-link of my webapps in the manager page in not underline,this means my webapps have just run well and the web.xml is correct).
Then i access my login.jsp which runs well at my Win2k platform.
But errors occured at that time:
The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Cannot find ActionMappings or ActionFormBeans collection
What's worong?

up

Rman of database under Linux from Windows server

Dear colleagues! I need some help.
I have Oracle database 10.2.0.1, which works under Linux CentOS. I've just set up rman, to backup this database to local linux partition. Now, i want to adjust rman, so it starts from Windows 2003 ( i've already install Oracle 10.2.0.1 client for Wondows 32-bit) server to backup this database to local Windows folder.Could you please answer, is it possible at all?
When i try to perform rman from Windows manually i got this errors:
channel t1: starting piece 1 at 29-APR-10
released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on t1 channel at 04/29/2010 03:07:32
ORA-19504: failed to create file "/u02/app/oracle/product/10.2.0/db_1/dbs/c:123
bak"
ORA-27038: created file already exists
Additional information: 1

1. You can run the backup from windows server 2003 which take the RMAN backup of your linux server. But this backup can only stored into your linux server.
2. You can't store the backup set of linux server into windows server.
Regards
Asif Kabir
-- mark your helpful post as correct/helpful.

Directory Server under Linux

I just installed Directory server under linux, the slapd starts ok after installation.
When I try ./start-admin I get this error:
SunONE-WebServer-Enterprise/6.0SP3 B05/19/2004 05:54
failure: server initialization failed (Interrupted system call)
Ive searched a bit and all I found is "Install TOUR 2.2" but thats for HP-UX.
Any tips for Linux? This problem seems to be common.

We have Sun-DS version 5.2 on Debian Sarge. I have just upgraded Debian Sarge to Debian Etch on one machine and admin-server did not start. I try to find out and found, that on Debian Etch the uxwdog loads first following libraries: /lib/tls/i686/cmov/libcrypt.so.1 /lib/tls/i686/cmov/libc.so.6 /lib/tls/i686/cmov/libdl.so.2 /lib/tls/i686/cmov/libm.so.6 /lib/tls/i686/cmov/libnsl.so.1 /lib/tls/i686/cmov/libnss_compat.so.2 /lib/tls/i686/cmov/libnss_files.so.2 /lib/tls/i686/cmov/libnss_nis.so.2 /lib/tls/i686/cmov/libpthread.so.0 /lib/tls/i686/cmov/libresolv.so.2
But on Debian Sarge, it loads /lib/libpthread.so.0 /lib/libdl.so.2 /lib/libcrypt.so.1 /lib/libresolv.so.2 /lib/libm.so.6 /lib/libc.so.6 /lib/libnss_files.so.2 /lib/libnss_compat.so.2 /lib/libnsl.so.1 /lib/libnss_nis.so.2.
So I have tried to update start-admin script and inserted
export LD_PRELOAD="/lib/libpthread.so.0 /lib/libdl.so.2 /lib/libcrypt.so.1 /lib/libresolv.so.2 /lib/libm.so.6 /lib/libc.so.6 /lib/libnss_files.so.2 /lib/libnss_compat.so.2 /lib/libnsl.so.1 /lib/libnss_nis.so.2"
And now, it starts without problem. So I hope it's the solution.

RMI server error under Linux

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