Include additional Java books

Include 
* UML for Java Programmers
* Oracle Java Guide
* Introduction to 3D Programming in Java

free-programming-books.md

@@ -937,6 +937,7 @@
 
 
 ###Java
+* [3D Programming in Java](http://www.mat.uniroma2.it/~picard/SMC/didattica/materiali_did/Java/Java_3D/Java_3D_Programming.pdf) - Daniel Selman
 * [Agile Java](http://www.langrsoft.com/ftp/agileJava/) - Jeff Langr
 * [Animation/Games in Java](http://www.heatonresearch.com/articles/series/3)
 * [Apache Jakarta Commons: Reusable Java Components](http://ptgmedia.pearsoncmg.com/images/0131478303/downloads/Iverson_book.pdf) - Will Iverson
@@ -956,6 +957,8 @@
 * [Java for the Beginning Programmer](http://www.heatonresearch.com/articles/series/15)
 * [Java Programming for Kids, Parents and Grandparents](http://myflex.org/books/java4kids/java4kids.htm) - Yakov Fain
 * [Java Thin-Client Programming](http://www.redbooks.ibm.com/redbooks/SG245118.html)
+* [Java: A Beginner's Guide](http://www.oracle.com/events/global/en/java-outreach/resources/java-a-beginners-guide-1720064.pdf) - Oracle
+* [Java Programming Language Handbook](http://portal.aauj.edu/portal_resources/downloads/programming/javap_programming_language_handbook.pdf)
 * [Learning Java (4th Edition)](http://chimera.labs.oreilly.com/books/1234000001805/index.html) - Patrick Niemeyer
 * [OOP - Learn Object Oriented Thinking & Programming](http://pub.bruckner.cz/titles/oop) - Rudolf Pecinovsky
 * [Open Data Structures (in Java)](http://opendatastructures.org/ods-java.pdf) (PDF)
@@ -971,10 +974,12 @@
 * [Think Java: How to Think Like a Computer Scientist](http://greenteapress.com/thinkapjava/) - Allen B. Downey
 * [Thinking in Java](http://www.mindview.net/Books/TIJ/)
 * [Tutorial: Java, Maven 2, Eclipse & JSF](http://www.lulu.com/shop/arulkumaran-kumaraswamipillai-and-sivayini-arulkumaran/tutorial-java-maven-2-eclipse-jsf/ebook/product-1603040.html;jsessionid=E57B1E8662500F2ADF96D7B317769B6E) - Arulkumaran Kumaraswamipillai, Sivayini Arulkumaran
+* [UML For Java Programmers](http://www.csd.uoc.gr/~hy252/references/UML_for_Java_Programmers-Book.pdf) - Robert Cecil Martin
 * [Welcome to Java for Python Programmers](http://interactivepython.org/runestone/static/java4python/index.html) - Brad Miller
 * [Welcome to the Java Workshop](http://javaworkshop.sourceforge.net/) - An Apache Project
 * [What's New in Java 8](https://leanpub.com/whatsnewinjava8/read) - Adam L. Davis
 
+
 ####Wicket
 * [Official Free Online Guide for Apache Wicket framework](http://wicket.apache.org/guide/)