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Java Modelling Tools is a suite of scientific tools for performance analysis and modelling using queueing theory and colored stochastic Petri nets. Models are solved either with analytical, asymptotic or simulation methods; workload characterization tools are also included in the suite.
See the project website for more details: http://jmt.sf.net
...It offers both at-least-once and at-most-once delivery semantics depending on per-message configuration, and retries or re-queueing of un-acknowledged jobs are built in. The system trades off strong FIFO ordering semantics in favor of simplicity and scalability, giving best-effort ordering rather than strict global message ordering.
PerMoTo is a Performance Modelling Tool suite for decision support in the capacity and performance management of distributed transaction processing systems based on Queueing Theory and Discrete Event Simulation.
Another logging framework for Java. I try to balance flexibility, usabilty and performance using OOP. Currently the framework is usable but it lacks a lot of functionality.
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Open source middleware for message queueing like IBM WebSphere MQ (former MQ Series) written in C++/Qt supporting many platforms like Win32, Unix and Mac OS with native C/C++/Qt and JMS support.
sharq is a batch-queueingsystem that allows for multiple users to make effective use of a beowulf cluster. sharq allows for prioritization based on a user's funding, and also based on the size of the job. sharq is very light-weight and easy to learn.
The Java Batch System (JBS) is a batch queueingsystem in the
tradition of NQS and PBS for internal (Java-based) and system batch
jobs. Stand-alone operation and integration with existing batch
queueing systems, initially OpenPBS, is supported.
A pluggable jukebox, in which the components talk XMLRPC to one another. This lets you have multiple UIs, multiple player types, multiple queueing systems. The ultimate conclusion would be a build your own jukebox kit. Includes a back end that Gronk! can
Multi-user online service implementation for web-based factory modeling. Rich user interface and scalable backend system to build online simulation services on or do other processing of factory data. Demo at https://fabriksimulation.ipa.fraunhofer.de