some useful java packages we have relied on in the past and might also
in the future:

Java Developer Kit: http://www.oracle.com/technetwork/java/javase/downloads/index.html

Jetty: http://www.eclipse.org/jetty/

Unlimited JCE jars for arbitrary key size in encryption / signing:
  search for: unlimited jce encryption oracle java 

Apache Wicket (web apps in java): http://wicket.apache.org/

Eclipse IDE: https://eclipse.org/downloads/

Java Service Wrapper: http://wrapper.tanukisoftware.com/doc/english/download.jsp