My FAQs > Programming > Java
Last updated on Sep 27, 2002
The extension mechanism is a new feature in Java(TM) 1.2 platform. Its simply a way of using JAR libraries in all applications running on the Java platform without having to include its location in the 'classpath'. This is achieved by copying the JAR file into a special location (JAVA_HOME/jre/ext/lib).
http://java.sun.com/docs/books/tutorial/ext/index.html