This paper presents a new approach to improve performance of Java programs by extending the superthreaded speculative execution model [14, 15] to exploit coarsegrained parallelism on a shared-memory multiprocessor system. The parallelization model, called Java Speculative MultiThreading (JavaSpMT), combines control speculation with run-time dependence checking to parallelize a wide variety of l...

Information technology sees references to the Java programming language with increasing frequency. It is a rare day when even casual computer users do not see Java mentioned in the media or on the many web pages they access. Mainstream news sources like The New York Times and The Wall Street Journal have been carrying substantial articles about Java.[5] The excitement that JAVA has produced has...

tuProlog is a Java-based Prolog engine explicitly designed to be minimal, dynamically configurable, and support full and clean Prolog/Java integration. In this paper, we discuss the tuProlog approach to Prolog/Java multi-paradigm integration. After tuProlog motivations and requirements, we present some examples of bidirectional Prolog/Java integration and discuss the model and architecture of t...

MATLAB, an interactive environment for numerical and symbolic computation, supports a number of interfaces to foreign programming languages including Java. However, there is no appropriate support for calling back MATLAB functions from within the Java Virtual Machine integrated with MATLAB. This paper presents such an interface which is based exclusively on documented and portable mechanisms su...

In the standard Java implementation, a Java language program is compiled to Java bytecode and this bytecode is then interpreted by the Java Virtual Machine. Since bytecode may be written by hand, or corrupted during network transmission, the Java Virtual Machine contains a bytecode veriier that performs a number of consistency checks before code is interpreted. As one-step towards a formal spec...

Although many slicing algorithms have been proposed for object-oriented programs, no slicing algorithm has been proposed which can be used to handle the problem of slicing concurrent Java programs correctly. In this paper, we propose a slicing algorithm for concurrent Java programs. To slice concurrent Java programs, we present a dependence-based representation called multithreaded dependence g...

Java is a programming language designed with concurrency in mind from its inception. However, the synchronization mechanism provided is a restricted version of Hoare’s Monitors, being too low level for most applications. In this paper we propose a high level synchronization mechanism for Java, based on Ada’s Rendez-Vous, adapting the notation and semantics to Java. The result is a nice and read...

As the number and variety of Weband network-based applications continues to increase, so does the need for flexible communication protocols and services to support them. Traditionally, a major impediment to deployment of new protocols is the need to upgrade millions of end-systems with compatible implementations. At the same time, Java — a language explicitly designed to support development and...

A Distributed Java Virtual Machine (DJVM) is a cluster-wide virtual machine that supports parallel execution of a multithreaded Java application on clusters, as if it was executed on a single machine but with improved computation power. The DJVM hides the physical boundaries between the cluster nodes and allows parallelly executed Java threads to access all cluster resources through a unified i...