If you fancy using BlueJ on Mac OS X, head over to bluej.org and and grab the stable 2.2.1 version for OS X. Once downloaded you will have the BlueJ folder, just put this where you keep your other apps. This is a stock BlueJ install so you will need to add the OU components.
2. Navigate to the userlib folder Contents > Resources > Java > userlib.
3. Pop in the Course software CD, at the root of the CD is a folder named “libraryfiles” go inside here and copy the files “bsh-2.0b4.jar” and “ou.jar” to the userlib folder opened in the last step.
4. Next navigate to the folder Contents > Resources > Java > extensions.
5. From the root of the course CD copy the jars “eaextension.jar” and “ouwextension.jar”.
6. In the finder navigate to the folder named Library in the root of your hard drive and scroll down to the folder Java, copy the same two jars “bsh-2.0b4.jar” and “ou.jar”
to the folder named “Extensions”.
Quick listing:
Inside BlueJ application bundle:
Resources > Java > Extensions should contain the following:
eaextension.jar
ouwextension.jar
Inside BlueJ application bundle:
Resources > Java > userlib should contain
bsh-2.0b4.jar
ou.jar
In the Library Folder in the Hard Drive and not in your home folder.
/Library/Java/Extensions should contain the following:
bsh-2.0b4.jar
ou.jar
If your still stuck let me know :)
Thats it done. Now your good to go!
I have seen another site that says to put “bsh-2.0b4.jar” and “ou.jar” in /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home/lib/ext/ this location is the actual Java system and should not really be touched. The Location /Library/Java/Extensions is the official location for additional jars and classes specified by Apple, all extensions are loaded when the JavaVM is started up. Another advantage of this approach is that if Apple updates the Java installation which is common this location is static and will just work with future versions.
If you want some more info, or find this useful leave me a comment.