Could not find main class - Java virtual machine launcher error

Hi,
I tried executing the following cmd, below is the following error:
<<command i executed>>
C:\Program Files\Java\jre1.5.0_09\bin>java -classpath "C:\Program Files\Java\jre1.5.0_09\lib\javaws.jar" com.sun.javaws.Main https://<IPddr>:8443/sample.jnlp
<<Error obtained>>
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/deploy/securi
ty/DeployAuthenticator
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
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)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Can you pls let me know how it can be resolved?
Thanks in advance
-NGS

tried executing the following cmd, below is the following error:
<<command i executed>>
C:\Program Files\Java\jre1.5.0_09\bin>java -classpath "C:\Program Files\Java\jre1.5.0_09\lib\javaws.jar" com.sun.javaws.Main https://<IPddr>:8443/sample.jnlp
Can you pls let me know how it can be resolved?Umm.. I am not sure, but I will start with
a question. Why not do it this way?C:\Program Files\Java\jre1.5.0_09\bin>javaws https://<IPddr>:8443/sample.jnlp

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tried executing the following cmd, below is the following error:
<<command i executed>>
C:\Program Files\Java\jre1.5.0_09\bin>java -classpath "C:\Program Files\Java\jre1.5.0_09\lib\javaws.jar" com.sun.javaws.Main https://<IPddr>:8443/sample.jnlp
Can you pls let me know how it can be resolved?Umm.. I am not sure, but I will start with
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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..
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Duplicates of the other two times you asked this question:
https://forums.oracle.com/thread/2559093
https://forums.oracle.com/thread/2558027
(and this time, your question does not appear to have anything to do with this particular forum space, either)
Duplicate is locked.
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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.
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[pre]
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Java Virtual Machine. Could not find main class

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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
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I feel like there may be some classpath issues?
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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.
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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."
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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.)
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This simply state that jvm was unable to fine Main Class file.
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[https://java.sun.com/docs/books/tutorial/deployment/jar|https://java.sun.com/docs/books/tutorial/deployment/jar]
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Another "could not find main class" thread

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Thanks for the reply martin
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Another "could not find main class.

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Class-Path: xerces/xerces.jar xml-apis/xml-apis.jar xalan\xalan.jar bin\ jdom\jdom.jarWhy are you using two different file separators? (/ and \) Try using the same one throughout.
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Class File Editor
Source not found
The source attachment does not contain the source for the file BMPImageReader.class
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Ah what the.. its working again.... odd.. very odd.. I don't know how to delete this thread , but go ahead you all mighty powerful moderators..
Edit: Yeah I had a main function.. maybe I accidentaly deleted or added a bracket or something I don't know.. very strange..
Message was edited by:
Kurisu

Could not find Main Class while running JAR outside /dist directory

Hello
I can make jar on netbeans by clicking Shift+F11. But the problem occurs when I copy paste my jar file out of /dist directory. It only works at /dist directory. I think my way making jar is incorrect. Anyone knows a way to make runnable jar by NetBeans instead of Shift + F11

Crossposted here:
[http://forums.sun.com/thread.jspa?threadID=5369074]
Don't do that.

Could not find main class - Java virtual machine launcher error

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