Tech-Recipes - Latest Comments in Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

rahul agarwal — Sat, 04 Jul 2009 14:29:00 -0000

thanks for the replies that have been posted....
i am so glad that my problem has been solved...

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Su — Fri, 03 Jul 2009 18:55:03 -0000

Your advice point out what I missed. Thz alot techno.

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Ian — Fri, 19 Jun 2009 06:02:43 -0000

Thank you - this is so helphul for me at the moment

If you are also dependent on a jar file in the same folder you may need to have something like
java -classpath .;./dependent.jar helloworld

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Anonymous — Wed, 17 Jun 2009 08:25:32 -0000

Does not work

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

sixlead — Mon, 25 May 2009 05:12:38 -0000

You will also get this error if you append the .class designator when you try to run it. as
java HelloWorld.class

java is expecting a class so the .class suffix is not necessary

of course your class path might be wrong also ;-)

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Loser — Sun, 24 May 2009 23:39:45 -0000

Worked for me !!!

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Kieran Taylor — Sun, 24 May 2009 22:38:12 -0000

!!ALERT!! !!ALERT!!

I just followed every suggestion in this string and no dice...

FINALLY I GOT IT ----> (on Windows XP) MAKE SURE YOU COMPILE YOUR PROGRAM WITH C:\...javac ClassName.java before you try to execute with C:\...java ClassName

You will know your program is compiled when you find a ClassName.class file in the same folder as your original ClassName.java program.

Hope this helps the last desperate few.
And yes, of course, make sure your path and classpath are correctly configured.

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

hello — Mon, 18 May 2009 22:06:41 -0000

and instead of joader its loader sorry for that

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

hello — Mon, 18 May 2009 22:05:56 -0000

hey this is me hello again and please dont post anything too confusing i have no knowledge of java except for classpath and path so please keep it simple

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

hello — Mon, 18 May 2009 22:00:48 -0000

hey im not trieng to program a file or anything like taht. im just trieng to play a private game server and i keep getting the error message Exception in thread "main" java.lang.nodeffound: joader i have no idea how to fix it can anyone help? my CLASSPATH is C:\Program Files\Java\jdk1.5.0_18\bin; and my PATH in C:\Program Files\Java\jdk1.5.0_18\bin

anyone help?

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Ram — Thu, 14 May 2009 07:34:20 -0000

Hi ,

First set the JAVA_HOME variable with your bin directory.
then try to run .it will help u.

Regards
Ram Yadav

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

ut_stud007 — Thu, 30 Apr 2009 18:13:50 -0000

Awesome dude thanks this solved my problem..I used to think that java.exe compiles and executes the application but I gues I was wrong....

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

nabil — Wed, 29 Apr 2009 07:54:27 -0000

Awesome.
It worked great

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

aravind — Fri, 17 Apr 2009 12:48:36 -0000

thanq very much for giving the solution.......

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

priyaj — Mon, 06 Apr 2009 09:59:00 -0000

hello ,i got a problem while executing a sample java program.
error is java.lang.NoClassDefFoundError: and im using jdk 1.6 version .
someone helpout this

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

jango19 — Mon, 06 Apr 2009 08:22:35 -0000

Exception in thread "main" java.lang.NoClassDefFoundError: Receiver/class
Caused by: java.lang.ClassNotFoundException: Receiver.class
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: Receiver.class. Program will exit.

where Receiver is my class..code is getting compiled perfectly but when i run its givin the above error..

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Thomaso — Mon, 30 Mar 2009 20:48:28 -0000

Thanks sooo much. if the java - classpath . helloworld doesnt work it is probably due to spacing and upper lower case letter problem.

for me i didnt put a space after java and a space either side of the full stop. and i forgot to write my class with an upper case letter which is how it was saved.

java(space) -classpath(space) . (space)Welcome1

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

desperado — Tue, 24 Mar 2009 04:00:28 -0000

thanks techno, great advice!

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

desperado — Tue, 24 Mar 2009 03:53:50 -0000

i used textpad and i still got the same error, can anyone tell me what's wrong?

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

techno — Thu, 12 Mar 2009 05:07:40 -0000

i think you are not giving space between the classpath n dot n m...
like java -classpath[space].[space]m

mine was also having the same error but when i gave spacing between them it worked,,..so u can also try dis once...

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

GXOne — Tue, 10 Mar 2009 19:54:23 -0000

OMG Thankyou After 5 Hours Thankyou.. with that advice it all works exactly the way it should LOL

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Crimson — Tue, 10 Mar 2009 04:50:57 -0000

hi guys,

I got this error when i made the mistake of running the class file. Make sure you are running the job correctly (fyi, I'm running vista):

Correct: C:\Users\Crimson\teaching> java Example

Incorrect: C:\Users\Crimson\teaching> java Example.class

This is really easy to forget about, especially if you're used to using an IDE like Eclipse, which was the case for me. I scratched my head for a little while and feel really dumb now.

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

nice — Fri, 27 Feb 2009 13:55:21 -0000

hi to all

too , i have error :

Exception in thread "main" java.lang.NoClassDefFoundError: nameclass

help me.

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

Gary Lesperance — Thu, 26 Feb 2009 14:22:32 -0000

I had the same problem but your suggestion above did not work. You missed the most obvious problem which is that Java is case sensitive. If you reference the class as Helloworld in the script and then try to run it using java -classpath . helloworld (with the file actually named helloworld.class) then you will get the same error referenced above. The problem is the upper case "H" in the script and then the file starting with a lower case "h".

Re: Java: Exception in thread main java.lang.NoClassDefFoundError | Java programming | Tech-Recipes

The One — Thu, 26 Feb 2009 00:38:45 -0000

Ha! I figured it out! I just wasn't compiling every file! "javac *.java" fixed it all! YES!!