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JRockit, a proprietary Java virtual machine (JVM) originally developed by Appeal Virtual Machines and acquired by BEA Systems in 2002, became part of Oracle Fusion Middleware in 2008. The JRockit code base and the HotSpot virtual machine from Sun Microsystems (now Oracle) are currently being integrated, with the target of releasing a JVM with a combined code base around the release date of JDK 8. JRockit was made free and publicly available in May 2011. Many JRE class files distributed with JRockit exactly replicate those distributed with HotSpot. JRockit overrides class files which relate closely to the JVM, therefore retaining API compatibility while enhancing the performance (processing speed) of the JVM. == History == Following the finalization of the acquisition of Sun Microsystems, Oracle announced in JavaOne 2010 that the best features of JRockit would be implemented in OpenJDK. In May 2011, Oracle announced that JRockit has become free, confirming that they plan to port JRockit features on OpenJDK. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「JRockit」の詳細全文を読む スポンサード リンク
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