JDeveloper 10g classpath problem

Question

The source file has:
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
The error on making is
Error(20,1): cannot access directory javax\mail; verify that directory is reachable from classpath and/or sourcepath
Please what is the answer?
Thanks.

Answer 1

For anybody that has a similar problem, I have fixed it by going to
Project/Project Properties/Profiles/Development/Paths/Additional Classpath
in JDeveloper.
Although JDeveloper will not compile Java classes using the latest release from Sun (5.0), you can surprisingly specify project classpaths to the latest Sun release in the Additional Classpaths and JDeveloper doesn't object.
I put the additional classpaths in my project as:
C:\Sun\AppServer\lib\j2ee.jar;C:\Sun\AppServer\lib\mail.jar
which is what you would set if you compile from a DOS prompt.
Now it recognises all the javax Mail Internet and Mime classes.
It seems Java is not particularly backward or forward compatible and you have to watch out for things from release to release.
PS If you install JDeveloper 10g and mistakenly point it to the latest Sun Java, it is best to de-install (just delete the complete directory tree) and re-install and point it to an earler version. There is an XML initialization file which holds all the paths, but it is a futile task to try to fix it up retrospectively to point to the right places.