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| | Java (Reliant UNIX) |
Java™ development and runtime environment (JENV) |
Current version: V1.3
JENV (Reliant UNIX) V1.3 consists of a runtime environment, which sits on top of the operating system layer and lends the Java programs a high degree of platform-independence, and also consists of components for developing Java programs.
The components for running Java programs comprise:- the Java runtime system (java, also referred to as the Java Virtual Machine, JVM)
- a "Just in time" (JIT)- compiler, which gives significant speed up factors compared to the predecessor version.
The components for developing java programs comprise:- Java compiler (javac)
- Java debugger (jdb)
- the Java classes
- the program for Java archive files (jar)
- the applet viewer and other utility programs.
JIT Compiler
To reach better performance figures, the byte code is translated "on the fly" with a "Just-In-Time" JIT-compiler during the time of the execution of the application. The advantage of a JIT-compiler is its neglectable compile time as well as its significant performance improvements executing Java applets or applications. With the JIT-compiler of JENV V1.3 speed up factors of about 9 have been reached on average.
Ordering information
JENV V1.3 is part of Reliant UNIX and is delivered with the system on CD-SYS-MI and is also available via download. The actual release status is found in the release notes and on the download page.
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