#2 "." in classpath causes exception

[Stephan Jaetzold]

If the classpath contains the current working directory
("."), adding a new Agent in the Tool is not possible.
When trying to, a window opens saying "Cant load class:
java.lang.NullPointerException".

Im not sure about the following facts, but:
- I think this applies to all elements of the classpath
which are relative paths.
- Maybe this applies only if the first element of the
classpath is a relative path.
- Maybe this does not happen when running on Windows.