Threads

The java.lang.Thread class has the following enhancements:

• Thread priority handling has changed; see the above link for details.

• Thread.State enum class and the new getState() API are provided for querying the execution state of a thread.

• The new thread dump API - the getStackTrace and getAllStackTraces methods in the Thread class - provides a programmatic way to obtain the stack trace of a thread or all threads.

• The uncaughtExceptionHandler mechanism, previously available only through the ThreadGroup class, is now available directly through the Thread class.

• A new form of the sleep() method is provided which allows for sleep times smaller than one millisecond.