Error javax.mail.NoSuchProviderException: pop3

Question

When my application runs within JBuilder everything works fine. But with a native executable I get the following error: javax.mail.NoSuchProviderException: pop3.
The Dependencies property for JavaMail=Include Dependencies. When set to Include All the native executable not even starts.
What is wrong here?
Greetings,
Hans

Answer 1

I had some difficulty looking for a solution to this problem.
All solutions 'beat about the same bush' but I couldnt get any of them to work.
My advice is dont give up- the problem will eventually be resolved.
How I resolved it was to assume, ( rightly) that when working inside JBuilder, it is not using the machine classpath to find library files such as mail.jar, but looking at its own library of jar files to find mail.jar.
I tracked down the JBuilder mail.jar in the /lib dir and copied out all classes beginning with POP... also all non Class files eg proviider and map files , the mailcap file and all files beginning with SUN, and also the Manifest file and placed them in a separate folder on the hard drive.
I then made an application jar definition from my JBuilder application but told it NOT to make a manifest file.I then right clicked on the build file, and selected properties/content and added in all files from the directory that I previously made containing the files mentioned above.
To the Manifest file in that directory I also added the mine Main Class: to tell it where my main class was.
I then re-built the executable jar file.
It worked. Just when I was down to pulling out the last tuft of hair.
Message was edited by:
1straybullet