TIOBE - Java Coding Standard

Rule: Basic27

This rule is Obsolete
Synopsis:	Avoid using ThreadGroup; it is not thread safe
Language:	Java
Severity Level:	2
Category:	Basic

Description:

Avoid using ThreadGroup; although it is intended to be used in a threaded environment it contains methods that are not thread safe.

public class Bar {
     void buz() {
      ThreadGroup tg = new ThreadGroup("My threadgroup") ;
      tg = new ThreadGroup(tg, "my thread group");
      tg = Thread.currentThread().getThreadGroup();
      tg = System.getSecurityManager().getThreadGroup();
     }
    }