Resources:

https://www.apache.org/: Apache's home page

https://java.apache.org/: The home of the mod_jserv extension

https://java.blackdown.org/: The Blackdown JDK for Linux

https://www.camb.opengroup.org/RI/java/linux/: The OpenGroup's JDK for Linux

https://www.javasoft.com/docs/books/tutorial/: Sun's Java Tutorial