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The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform.
OpenJDK (Open Java Development Kit) is a free and open-source implementation of the Java Platform, Standard Edition (Java SE). [2] It is the result of an effort Sun Microsystems began in 2006, four years before the company was acquired by Oracle Corporation .
Java 3D is a scene graph-based 3D application programming interface (API) for the Java platform. It runs on top of either OpenGL or Direct3D until version 1.6.0, which runs on top of Java OpenGL (JOGL). Since version 1.2, Java 3D has been developed under the Java Community Process. A Java 3D scene graph is a directed acyclic graph (DAG).
The Java Research License (JRL) is a software distribution license created by Sun in an effort to simplify and relax the terms from the "research section" of the Sun Community Source License. Sun's J2SE 1.6.0, Mustang , is licensed under the JRL as well as many projects at Java.net .
HotSpot, Java SE embedded edition Sun Microsystems, Oracle: 27 April 1999 ? ? Commercial Proprietary [5] HotSpot, Zero port Gary Benson [6]? ? ? Free GPL version 2 only IKVM.NET: Jeroen Frijters 28 June 2004 7.0.4335.0 5 December 2011 Free zlib License [7] JAmiga: Peter Werno, Joakim Nordström 19 May 2005 [8] 1.2 6 January 2014 Free GPL ...
JRuby was originally created by Jan Arne Petersen, in 2001. At that time and for several years following, the code was a direct port of the Ruby 1.6 C code. With the release of Ruby 1.8.6, an effort began to update JRuby to 1.8.6 features and semantics.
Early JVMs always interpreted Java bytecodes.This had a large performance penalty of between a factor 10 and 20 for Java versus C in average applications. [5] To combat this, a just-in-time (JIT) compiler was introduced into Java 1.1.
Java SE 5.0, for example, has the internal version number of 1.5.0, and versions of Windows from NT 4 on have continued the standard numerical versions internally: Windows 2000 is NT 5.0, XP is Windows NT 5.1, Windows Server 2003 and Windows XP Professional x64 Edition are NT 5.2, Windows Server 2008 and Vista are NT 6.0, Windows Server 2008 R2 ...