I am using
Java SDK version -> 1.4.2
Java Enterprise version->1.4.2
Windows platform->Windows xp professional

What's Sun's deadline for making Java opensource?
Thanks,
Dave Feustel

I have made a jar file and I'm trying to execute the jar file, but it
gives me NoClassDefError. However, when I extract the jar file, I see
that class but, jar file in not able to find it.
The only different thing I'm doing is I've extracted another jar file

I just upgraded my development environment (on Windows/2000) to
use J2SE 1.5.0_07, and even though I recreate the application Jar
file from scratch, and I attempt to run it using java -jar, I
get Invalid or corrupt jarfile.

I've got the following problem:
In my current perspective there are some views that cannot be closed
and haven't got any content in it (see screenshot:

I am new to Java Studio Enterprise 8 and  have searched for tutorials , but
those available on Sun site are mostly about UML .
Could you please tell me if there are some tutorials that contain working
examples ?

How to I activate these tools?
How do I choose to use them from Eclipse?
Thanks,
IanO

Is there a plugin that would enable me to change all occurrences of a
variable/function name in a software project?
I mean I see that I can change a variable name in one file at time,
selecting each one.