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Real-time Java is a catch-all term for a combination of technologies that enables programmers to write programs that meet the demands of real-time systems in the Java programming language. Java's sophisticated memory management , native support for threading and concurrency, type safety , and relative simplicity have created a demand for its ...
The progress of the Apache Harmony project can be tracked against J2SE 1.4 and Java SE 5.0. [32] Also, there is a branch for Harmony v6.0 in development for Java SE 6.0. Apache Harmony developers integrate several existing, field-tested open-source projects to meet their goal (not reinventing the wheel ).
Java backporting tools are programs (usually written in Java) that convert Java classes bytecodes from one version of the Java Platform to an older one (for example Java 5.0 backported to 1.4). Java backporting tools comparison
In server mode, extensive compilation and optimization is performed, to maximize performance once the application is running by sacrificing startup time. Other Java just-in-time compilers have used a runtime measurement of the number of times a method has executed combined with the bytecode size of a method as a heuristic to decide when to ...
Excalibur: Java inversion of control framework including containers and components; Falcon: data governance engine; Forrest: documentation framework based upon Cocoon; Giraph: scalable Graph Processing System; Hama: Hama is an efficient and scalable general-purpose BSP computing engine; Harmony: Java SE 5 and 6 runtime and development kit
In computer science, ahead-of-time compilation (AOT compilation) is the act of compiling an (often) higher-level programming language into an (often) lower-level language before execution of a program, usually at build-time, to reduce the amount of work needed to be performed at run time.
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For example, the Java compiler, which converts Java source code into Java bytecode (an intermediate language for the JVM), is provided as part of the Java Development Kit (JDK). The Java Runtime Environment (JRE), complementing the JVM with a just-in-time (JIT) compiler , converts intermediate bytecode into native machine code on the fly.