How to avoid NoClassDefError?

[dmjpro]

Please help!
And please differentiate between ClassNotFoundEx ception and NoClassDefError .

Debasis Jana.

[r035198x]

Please help!
And please differentiate between ClassNotFoundEx ception and NoClassDefError .

Debasis Jana.

What do the specs say?
Note that one is an error while the other is an exception.

[JosAH]

Straight from the API docs:

public class ClassNotFoundEx ception extends Exception

Thrown when an application tries to load in a class through its string name using:

The forName method in class Class.
The findSystemClass method in class ClassLoader .
The loadClass method in class ClassLoader.

but no definition for the class with the specified name could be found.


public class NoClassDefFound Error extends LinkageError

Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.

The searched-for class definition existed when the currently executing class was compiled, but the definition can no longer be found.

kind regards,

Jos

[dmjpro]

Ok !
Both of you thanks but how could I avoid this Error?
One more thing the error comes with ....
java.lang.NoCla ssDefFoundError : com/oreilly/servlet/MultipartReques t
What is this????

Debasis Jana.

[r035198x]

Ok !
Both of you thanks but how could I avoid this Error?


Debasis Jana.

Just make sure the circumstances explained in the docs for that error to occur do not arise.
e.g Make sure you type your class names correctly when using the java command.

[dmjpro]

Just make sure the circumstances explained in the docs for that error to occur do not arise.
e.g Make sure you type your class names correctly when using the java command.

Actually the class exists!
But ....... when I try to get the instance then I can't get the Instance.
Please help!

Debasis Jana

[r035198x]

Actually the class exists!
But ....... when I try to get the instance then I can't get the Instance.
Please help!

Debasis Jana

Does it exist in that path that it's being looked for?

[dmjpro]

Does it exist in that path that it's being looked for?

I got it solved.
Thanks a lot guys!

Debasis Jana

[jlsevasion]

Let me know how you solved it..please