Difference between revisions of "JVM"
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| − | {{AN}} is an acronym for {{bu|J|ava}} {{bu|V|irtual}} {{bu|M|achine}}. | + | {{AN}} is an acronym for {{bu|J|ava}} {{bu|V|irtual}} {{bu|M|achine}}. The JVM contains the Java "CPU" - which runs Java Byte Code instructions - and the supportive libraries. |
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| + | The [[iSeries]] supports multiple full featured Java Virtual Machines, all invoked through the same JAVA/RUNJVA command. The system property "java.version" tells JAVA which JVM to start. | ||
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| + | The traditional JVM is 64-bit which gives a very large heap space but also uses up a lot of memory. From 5.4 there is a new 32-bit JVM which uses only about half of the memory needed by the 64-bit JVM for a given task. As it is ported from AIX it requires the PASE environment. | ||
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| + | Java 1.5 is avaliable from V5R1, and Java 6 is available from V5R4. | ||
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==Categories== | ==Categories== | ||
{{stub}} | {{stub}} | ||
[[Category:Java]] | [[Category:Java]] | ||
Latest revision as of 23:36, 5 March 2008
JVM is an acronym for Java Virtual Machine. The JVM contains the Java "CPU" - which runs Java Byte Code instructions - and the supportive libraries.
The iSeries supports multiple full featured Java Virtual Machines, all invoked through the same JAVA/RUNJVA command. The system property "java.version" tells JAVA which JVM to start.
The traditional JVM is 64-bit which gives a very large heap space but also uses up a lot of memory. From 5.4 there is a new 32-bit JVM which uses only about half of the memory needed by the 64-bit JVM for a given task. As it is ported from AIX it requires the PASE environment.
Java 1.5 is avaliable from V5R1, and Java 6 is available from V5R4.
Categories
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