This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)
JLink Guide
Java Memory Management
JavaBlock release any Java objects created during evaluation once evaluation finishes
BeginJavaBlock, EndJavaBlock mark the beginning and end of a Java block
KeepJavaObject allow a Java object to persist when the current JavaBlock ends
ReleaseJavaObject finish using a Java object in Mathematica
SameObjectQ whether two JavaObject expressions reference the same Java object
LoadedJavaObjects, LoadedJavaClasses list all Java objects or classes in use