Could not find or load main class weblogic.WLST

Hi,
I am trying to run a python script to create JMS components for use with iHub and i got the following error message when i try to run the script:
C:\ihub\bin>java weblogic.WLST omipmihubwlscript.py weblogicjms Welcome1 http://<servername>:7111 OMIPMIHUBServer
Error: Could not find or load main class weblogic.WLST
I have run the setWLSEnv.cmd file and got the following output
C:\oracle\Middleware2\wlserver_10.3\server\bin>setWLSEnv.cmd
CLASSPATH="C:\oracle\MIDDLE~2\patch_wls1036\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\oracle\MIDDLE~2\patch_ocp371\profiles\default\sys_manifest_classpath\weblogic_p
atch.jar;C:\PROGRA~1\Java\JDK17~1.0_1\lib\tools.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\weblogic_sp.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\weblogic.jar;C:\oracle\MIDDLE~2\mod
ules\features\weblogic.server.modules_10.3.6.0.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\webservices.jar;C:\oracle\MIDDLE~2\modules\ORGAPA~1.1/lib/ant-all.jar;C:\oracle\MIDDLE~2\modu
les\NETSFA~1.0_1/lib/ant-contrib.jar;C:\oracle\MIDDLE~2\patch_wls1036\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\oracle\MIDDLE~2\patch_ocp371\profiles\default\sys_man
ifest_classpath\weblogic_patch.jar;C:\PROGRA~1\Java\JDK17~1.0_1\lib\tools.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\weblogic_sp.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\weblogic.
jar;C:\oracle\MIDDLE~2\modules\features\weblogic.server.modules_10.3.6.0.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\webservices.jar;C:\oracle\MIDDLE~2\modules\ORGAPA~1.1/lib/ant-all.j
ar;C:\oracle\MIDDLE~2\modules\NETSFA~1.0_1/lib/ant-contrib.jar;C:\oracle\MIDDLE~2\patch_wls1036\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\oracle\MIDDLE~2\patch_ocp37
1\profiles\default\sys_manifest_classpath\weblogic_patch.jar;C:\PROGRA~1\Java\JDK17~1.0_1\lib\tools.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\weblogic_sp.jar;C:\oracle\MIDDLE~2\WLSER
V~1.3\server\lib\weblogic.jar;C:\oracle\MIDDLE~2\modules\features\weblogic.server.modules_10.3.6.0.jar;C:\oracle\MIDDLE~2\WLSERV~1.3\server\lib\webservices.jar;C:\oracle\MIDDLE~2\module
s\ORGAPA~1.1/lib/ant-all.jar;C:\oracle\MIDDLE~2\modules\NETSFA~1.0_1/lib/ant-contrib.jar;"
PATH="C:\oracle\MIDDLE~2\patch_wls1036\profiles\default\native;C:\oracle\MIDDLE~2\patch_ocp371\profiles\default\native;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x64;C:\oracle\MIDD
LE~2\WLSERV~1.3\server\bin;C:\oracle\MIDDLE~2\modules\ORGAPA~1.1\bin;C:\PROGRA~1\Java\JDK17~1.0_1\jre\bin;C:\PROGRA~1\Java\JDK17~1.0_1\bin;C:\oracle\MIDDLE~2\patch_wls1036\profiles\defa
ult\native;C:\oracle\MIDDLE~2\patch_ocp371\profiles\default\native;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x64;C:\oracle\MIDDLE~2\WLSERV~1.3\server\bin;C:\oracle\MIDDLE~2\module
s\ORGAPA~1.1\bin;C:\PROGRA~1\Java\JDK17~1.0_1\jre\bin;C:\PROGRA~1\Java\JDK17~1.0_1\bin;C:\oracle\MIDDLE~2\patch_wls1036\profiles\default\native;C:\oracle\MIDDLE~2\patch_ocp371\profiles\
default\native;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x64;C:\oracle\MIDDLE~2\WLSERV~1.3\server\bin;C:\oracle\MIDDLE~2\modules\ORGAPA~1.1\bin;C:\PROGRA~1\Java\JDK17~1.0_1\jre\bi
n;C:\PROGRA~1\Java\JDK17~1.0_1\bin;C:\app\paul.currie\product\11.2.0\client_2\bin;C:\app\paul.currie\product\11.2.0\dbhome_3\bin;C:\Program Files (x86)\PC Connectivity Solution\;C:\Wind
ows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Java\jdk1.7.0_13\jre\bin;;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x
64\oci920_8;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x64\oci920_8;C:\oracle\MIDDLE~2\WLSERV~1.3\server\native\win\x64\oci920_8"
Your environment has been set.
I am totally stuck at this point so any help would be much appreciated.
Cheers
Paul

I have just tested both on a Windows and a Linux server and it works fine.
D:\oracle\product\Middleware\wlserver_10.3\server\bin>setWLSEnv.cmd
CLASSPATH=D:\oracle\product\MIDDLE~1\patch_wls1035\profiles\default\sys_manifest_classpath\weblogic_patch.jar;D:\oracle\
product\MIDDLE~1\patch_jdev1111\profiles\default\sys_manifest_classpath\weblogic_patch.jar;D:\oracle\product\JAVA_C~1\li
b\tools.jar;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\lib\weblogic_sp.jar;D:\oracle\product\MIDDLE~1\WLSERV~1.3\serve
r\lib\weblogic.jar;D:\oracle\product\MIDDLE~1\modules\features\weblogic.server.modules_10.3.5.0.jar;D:\oracle\product\MI
DDLE~1\WLSERV~1.3\server\lib\webservices.jar;D:\oracle\product\MIDDLE~1\modules\ORGAPA~1.1/lib/ant-all.jar;D:\oracle\pro
duct\MIDDLE~1\modules\NETSFA~2.0_1/lib/ant-contrib.jar;D:\oracle\product\MIDDLE~1\patch_wls1035\profiles\default\sys_man
ifest_classpath\weblogic_patch.jar;D:\oracle\product\MIDDLE~1\patch_jdev1111\profiles\default\sys_manifest_classpath\web
logic_patch.jar;D:\oracle\product\JAVA_C~1\lib\tools.jar;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\lib\weblogic_sp.ja
r;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\lib\weblogic.jar;D:\oracle\product\MIDDLE~1\modules\features\weblogic.ser
ver.modules_10.3.5.0.jar;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\lib\webservices.jar;D:\oracle\product\MIDDLE~1\mod
ules\ORGAPA~1.1/lib/ant-all.jar;D:\oracle\product\MIDDLE~1\modules\NETSFA~2.0_1/lib/ant-contrib.jar;
PATH=D:\oracle\product\MIDDLE~1\patch_wls1035\profiles\default\native;D:\oracle\product\MIDDLE~1\patch_jdev1111\profiles
\default\native;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\native\win\x64;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server
\bin;D:\oracle\product\MIDDLE~1\modules\ORGAPA~1.1\bin;D:\oracle\product\JAVA_C~1\jre\bin;D:\oracle\product\JAVA_C~1\bin
;D:\oracle\product\MIDDLE~1\patch_wls1035\profiles\default\native;D:\oracle\product\MIDDLE~1\patch_jdev1111\profiles\def
ault\native;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\native\win\x64;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\bin
;D:\oracle\product\MIDDLE~1\modules\ORGAPA~1.1\bin;D:\oracle\product\JAVA_C~1\jre\bin;D:\oracle\product\JAVA_C~1\bin;C:\
Program Files\Legato\nsr\bin;C:\PROGRA~2\CA\SHARED~1\ETPKI\lib;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C
:\Windows\System32\WindowsPowerShell\v1.0\;D:\oracle\Java\current\jre\bin;C:\PROGRA~2\CA\IDENTI~1\PROVIS~1\BIN;C:\Progra
m Files (x86)\CA\SharedComponents\CAM\bin;D:\oracle\product\MIDDLE~1\WLSERV~1.3\server\native\win\x64\oci920_8;D:\oracle
\product\MIDDLE~1\WLSERV~1.3\server\native\win\x64\oci920_8
Your environment has been set.
D:\oracle\product\Middleware\wlserver_10.3\server\bin>java weblogic.WLST
Initializing WebLogic Scripting Tool (WLST) ...
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
wls:/offline>

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SMS: http://www.szybist.net/

Could not find main class. Program will now exit. *SIGH*.....

At first I thought it was just my own programs that I created with netbeans that had this problem; however, even the demo programs under the sdk folder give me this problem when i try to run them. Virtual Machine Loader will just come up with pop up saying "Could not find the main class. Program will not exit"
I am a fairly competent programmer, not new to java. But I am new to guis in java, and using netbeans to create them. The program I am creating gives me this error with javaw and with java it will tell me NoClassDef for grouplayout. I checked the manifest file it looks alright:
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 10.0-b19 (Sun Microsystems Inc.)
Main-Class: desktopapplication2.DesktopApplication2
Class-Path: lib/appframework-1.0.3.jar lib/swing-worker-1.1.jar lib/swing-layout-1.0.1.jar lib/ant-swing.jar lib/SwingSet2.jar lib/swing-layout-1.0.3.jar
X-COMMENT: Main-Class will be added automatically by build
}(brackets not included)
I am sort of lost.... Do I need to install ant separately?
I feel like there may be some classpath issues?
I have java 1.6 update 4 and netbeans 6.0
I am completely lost I have been working on fixing this for the past 2 or 3 days now, and reading up all the information.
Note: This is just a standard desktop application.
Also I just thought of something. If I have install the development kit do I also need to install the framework or whatever for 6.0 separately? Meaning installing the latest version of jvm. Sorry if this isn't clear i forgot what it is called.
Sorry if this sounds like a beginner question or something, but I am going crazy. If i am having this much trouble running my own program i really hope distributing files won't be this much of a nightmare....

Please become familar with resources at the NetBeans site. There are tutorials and FAQs that cover usage of NB, and how to do things like you're asking.
See my reply in this thread for more information
http://forum.java.sun.com/thread.jspa?threadID=5270931&tstart=0

Jar file could not find main class.. I cant see why?

I have read loads of tutorials on this and it should be very straight forward but i STILL cant make a working jar file of my program.. please see if you can see anything wrong with what im doing..
my program is one .java file that compiles perfectly, and is runnable both through eclipse and by using the command prompt.. i made a jar file using both eclipse and the command prompt, and neither worked.. every time i run it by double clicking it i get the error "could not find main class, program will exit". here is the contents of my jar:
CorePackage\IPEmailer.class
CorePackage\IPEmailer$1.class
CorePackage\IPEmailer$SMTPAuthenticator.class
META-INF\MANIFEST.MF
the MANIFEST.MF file contains:
Manifest-Version: 1.0
Class-path: .
Created-By: 1.6.0_02 (Sun Microsystems Inc.)
Main-Class: CorePackage.IPEmailer
(yes there is a blank line at the end)
the class mentioned in 'Main-Class' has a main method that looks like this:
public static void main(String[] args) {
    // TODO Auto-generated method stub
    new IPEmailer();
}the program uses 2 external jar files:
activation.jar
mail.jar
and reads a file called:
ipemailer.ini
and writes a file called:
ip.txt
the program has no GUI and is intended to run 'silently' in the background
please help me understand what is wrong with this

package CorePackage;
import javax.mail.*;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
import java.net.*;
public class IPEmailer implements Runnable{
      * @param args
     String recipientsinput[]={""};
     String subject;
     String body;
     String server;
     String user;
     String pass;
     String from;
     String urlString = "http://www.whatismyip.org";
     String currentIP;
     String ipFromFile;
     boolean webFailed;
     long interval = 900000; //15 mins
     long oldInterval;
     Thread t = new Thread(this);
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          new IPEmailer();
     public IPEmailer(){
                     ..........etccould the problem be that the class is a thread? i cant see why it would be, but ive never made a jar where the main class also 'implements runnable'

JAR: - Could not find main class

I'm sorry, I know this issue has been posted before but I am a bit confused with my situation.
After making a jar on my computer, I run it, and the program loads and runs perfectly.
However, when I try the jar on someone else's computer, it doesn't work, and gives the "could not find main class" message. The other computer has JRE but not JDK, so I don't know if that makes a difference.
Anyways, my main class file is located in a package called hw2, and the whole project is located in a folder called HW2. So my class file is located in something like C:\School\HW2\hw2\Main.class.
My Manifest.txt file is located in the \School\HW2 directory and has the following with a new line at the end:
Main-Class: hw2.Main
At the command prompt, I go to my C:\School\HW2 directory and I type the following to create the jar:
jar cvmf Manifest.txt test.jar hw2\*.class
My jar file has the following contents:
META-INF/
META-INF/MANIFEST.MF
hw2/Bank.class
hw2/GUIInterface.class
hw2/Main.class
Did I write the manifest.txt file correctly? Am I in the right directory when creating the jar file? Am I executing the jar command wrong? How come it works on my computer but not on someone else's?

Are you certain you're executing the jar in the same way on both machines?
For example, are you sure you're not executing the unjarred class files when you run on your local machine?

Java Access Bridge 1.1 Could not find the main class

When I try to load Java Access Bridge 1.1 I receive the following error:
Could not find the main class. Program will exit.
Does anyone know why?

you must check with the classpath
please see that you have not repeated %classpath%
at the end of the class path like you do in win98.
similiarly with %path%
in win2000 it is automatically taken care off.

Could not find Main Class while executing JAR

Hello all,
I am having a simple Jar file that contains one java class that merely displays a window. I am using NetBeans IDE to create the JAR file. When i execute this JAR file by double clicking on the file, it works fine on the machine. However, if i try to execute this same file on any other windows computer, it gives an error "Could not find the main class. Program will exit."
In other words, the JAR file is only working on the computer that has NetBeans and JDK installed on. Not on any other machine. Although the other machines have the JAVA Virtual Machine installed.
I would appreciated any help on this topic.

I had the same problem (i.e. Message-Box with "Could not find the main class. Program will exit.")
After insuring that the manifest contained a Main-Class: argument and that the argument pointed to the right class, I started the jar via java -jar myjar.jar and read the stacktrace, which is much better than the popup-window.
In my case the error was, that the Main-Class could not be loaded due to another referenced class, which was not on the classpath. (i.e. it was not in the same jar-File and the manifest didn't include a Class-Path: argument.)
After adding the correct Class-Path: argument in the manifest, the problem went away.
I now have the following setup:
myjar.jar and somethirdparty.jar in the same directory.
myjar.jar contains a manifest which includes the lines
Class-Path: somethirdparty.jar
Main-Class: my.package.and.MainClassafter the normal Manifest-header.

Could not find the main class: oracle.ide.boot.Launcher. Program will exit

Hi,
I have installed Oracle11g_win64_11gR1, Database and Client.
The issue is unable to invoke "sqldeveloper", getting the following error message. Could you please help ?
FYI. I have already downloaded and installed installed JRE and JDK.
ie. C:\Program Files (x86)\Java\jre6\ and C:\Program Files\Java\jdk1.6.0_24, still did not work.
C:\Users\oracle>java -version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)
Let me know, if you need more information. Here is the error message.
Error Message
=========
(1) if I invoke sqldeveloper, directly from the location " C:\app\oracle\product\11.1.0\db_1\sqldeveloper\sqldeveloper\bin " using explorer, I do get error message
"Unable to find a java Virtual Machine.
To point to a location of java Virtual machine please refer to the Oracle9i JDeveloper Install Guide ( jdev/install.html)"
(2) if I invoke sqldeveloper, directly from the locationC:\app\oracle\product\11.1.0\client_1\sqldeveloper, it prompts me to enter "full path for java.exe".
When I enter full path and continue, still it continue to prompt and ask the same input.
(3) if I invoke sqldeveloper from from command prompt using the batch file "sqldeveloper.bat"
C:\Users\oracle>C:\app\oracle\product\11.1.0\client_1\sqldeveloper\sqldeveloper\
bin\sqldeveloper.bat
C:\Users\oracle>java -Xmx512M -Xverify:none -XX:JavaPriority10_To_OSPriority=10
-XX:JavaPriority9_To_OSPriority=9 -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_F
LAG=true -Dsun.java2d.ddoffscreen=false -Dwindows.shell.font.languages= -Dide.co
nf="sqldeveloper.conf" -Dide.home.dir.name=.sqldeveloper -classpath ..\..\ide\l
ib\ide-boot.jar;..\..\jdev\lib\xmleditor.jar;..\..\ide\lib\oicons.jar;..\..\..\j
dbc\lib\ojdbc5.jar;..\..\jlib\jewt4.jar;..\..\jlib\share.jar;..\..\sqldeveloper\
lib\jle2.jar oracle.ide.boot.Launcher
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/ide/boot/Launc
her
Caused by: java.lang.ClassNotFoundException: oracle.ide.boot.Launcher
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: oracle.ide.boot.Launcher. Program will exit.
OS
==============
MS Windows 7 Home Premium
sqldeveloper.conf
===================
SetSkipJ2SDKCheck true
IncludeConfFile ../../jdev/bin/ide.conf
AddVMOption -Dapple.laf.useScreenMenuBar=true
AddVMOption -Dcom.apple.mrj.application.apple.menu.about.name="SQL_Developer"
AddVMOption -Dcom.apple.mrj.application.growbox.intrudes=false
AddVMOption -Dcom.apple.macos.smallTabs=true
AddVMOption -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_FLAG=true
AddJavaLibFile ../../jdev/lib/xmleditor.jar
AddJavaLibFile ../../ide/lib/oicons.jar
AddJavaLibFile ../../jlib/jewt4.jar
AddJavaLibFile ../../jlib/share.jar
AddJavaLibFile ../ide/jlib/xmlef.jar
AddJavaLibFile ../../sqldeveloper/lib/jle2.jar
AddJavaLibFile ../../sqldeveloper/lib/oracle.dbtools.logging.jar
AddVMOption -Dsun.java2d.ddoffscreen=false
AddVMOption -Dwindows.shell.font.languages=
IncludeConfFile sqldeveloper-nondebug.conf
SetJavaHome C:\Program Files\Java\jdk1.6.0_24
Edited by: sivapara on Feb 16, 2011 1:08 PM

I was able to resolve this issue by performing following.
1. Go to the location where sqldeveloperW.exe is being executed from.
2. You will find a file sqldeveloper.conf in that location. Edit this file and change the value of IncludeConfFile to point to actual place. For me following were old and new values.
OLD (Wrong) : IncludeConfFile ../../jdev/bin/ide.conf
NEW (Correct) : IncludeConfFile ../../ide/bin/ide.conf
After making above change in the sqldeveloper.conf file. Save and close it. Restart SQLDeveloper. You will not get the error anymore.
Thanks
Ravi

Could not find or load main class weblogic.WLST

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