## Uses of Interface
com.sun.jdi.ThreadGroupReference

Packages that use ThreadGroupReference
com.sun.jdi: This is the core package of the Java Debug Interface (JDI), it defines mirrors for values, types, and the target VirtualMachine itself - as well bootstrapping facilities.

### Uses of ThreadGroupReference in com.sun.jdi

Methods in com.sun.jdi that return ThreadGroupReference
`ThreadGroupReference` ThreadGroupReference.`parent()` Returns the parent of this thread group.
`ThreadGroupReference` ThreadReference.`threadGroup()` Returns this thread's thread group.

Methods in com.sun.jdi that return types with arguments of type ThreadGroupReference
`List<ThreadGroupReference>` ThreadGroupReference.`threadGroups()` Returns a List containing each active `ThreadGroupReference` in this thread group.
`List<ThreadGroupReference>` VirtualMachine.`topLevelThreadGroups()` Returns each thread group which does not have a parent.