The root set of references is a reference variable collection always accessible to an executing Java program. Each variable’s reference value allows the program to access an object’s fields ...

Those objects in turn typically contain reference variables that refer to further objects, which are indirectly reachable from a member of the root set. As long as a path exists either directly or ...

Java provides a way for the programmer to exercise control over memory management by marking certain objects as expendable via reference objects. Should an application’s memory requirements ...

Object references and memory. The Java virtual machine (JVM) ... The overall effect is to have a consistent way to ask for a reference on a variable regardless of its kind.