Before you create any code to extend IBM Director Sever, you need to prepare to compile the Java code for your extension.
These are the main things you should consider about the compiler:
For IBM Director 4.x. Use the 1.3.1 JDK. For IBM Director 5.1, use the 1.4.2 JDK.
For most extension programming, you will require DirLibs.jar and Director.jar to be added to your classpath.
An exampler of a Java development environment is described in the sections under Starting
to program your extension in the Table of Contents.