%T Using Java for Parallel Computing \- JCSP versus CTJ
%A Nan C. Schaller, Gerald H. Hilderink, Peter H. Welch
%E Peter H. Welch, André W. P. Bakkers
%B Communicating Process Architectures 2000
%X Java provides support for concurrent and parallel
programming throughthreads, monitors and its socket and
Remote Method Invocation (RMI) classes.However, there have
been many concerns expressed about the way in which
thissupport is provided, e.g., , citing problems such
as improper implementation ofmonitors and difficulty of
programming with threads. Hoare’s CommunicatingSequential
Processes (CSP)  model fully specifies thread
synchronizationand is based on processes, compositions, and
channel communication. It provides amathematical notation
for describing patterns of communication using
algebraicexpressions and contains formal proofs for
analyzing, verifying and eliminatingundesirable conditions,
such as race hazards, deadlocks, livelock, and
starvation.Two independent research efforts provide a CSP
based process\-oriented designpattern for concurrency
implemented in Java: Communicating Sequential Processesfor
Java (JCSP)  and Communication Threads in Java (CTJ) .
In this paper, wecompare these two packages, looking at the
philosophy behind their development,their similarities,
their differences, their performance, and their use.
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