JAMA is a basic linear algebra package for Java. It provides user-level classes for constructing and manipulating real, dense matrices. It is meant to provide sufficient functionality for routine problems, packaged in a way that is natural and understanda
JMP is a sparse matrix library, implemented in pure Java. It is aimed at the numerical solution of large, sparse matrices arising from the discretization of partial differential equations (PDEs).
P. Gottschling, D. Wise, und M. Adams. ICS '07: Proceedings of the 21st annual international conference on Supercomputing, Seite 116--125. New York, NY, USA, ACM, (2007)