Software, Tools and Documentation

Language: Java 1.8.0 ( API documentation, Overall documentation, tutorial, download),

OpenMP 4.5 ( Specification, Summary, Examples)

MPI ( Specification).

Tools:

Debuggers ( jdb (comes with jdk) Jswat (a graphical java debugger) ).
IDEs for Java ( Eclipse (includes a debugger too) ).

Some other links: