Sun Microsystems 820433510 manual 23JVM Statistics for Java SE Thread Info

About Monitoring

TABLE 18–22JVM Statistics for Java SE - Runtime		(Continued)
Statistic	Data Type		Description
managementspecversion	StringStatistic		Management spec. version implemented
			by the JVM.
classpath	StringStatistic		Classpath that is used by the system class
			loader to search for class files.
librarypath	StringStatistic		Java library path.
bootclasspath	StringStatistic		Classpath that is used by the bootstrap
			class loader to search for class files.
inputarguments	StringStatistic		Input arguments passed to the JVM. Does
			not include the arguments to the main
			method.
uptime	CountStatistic		Uptime of the JVM (in milliseconds).

The statistics available for ThreadInfo in the JVM in Java SE are shown in the following table.

TABLE 18–23JVM Statistics for Java SE - Thread Info

Statistic	Data Type	Description
threadid	CountStatistic	ID of the thread.
threadname	StringStatistic	Name of the thread.
threadstate	StringStatistic	State of the thread.
blockedtime	CountStatistic	Time elapsed (in milliseconds) since the
		thread entered the BLOCKED state. Returns
		-1 if thread contention monitoring is
		disabled.
blockedcount	CountStatistic	Total number of times that the thread
		entered the BLOCKED state.
waitedtime	CountStatistic	Elapsed time (in milliseconds) that the
		thread has been in a WAITING state.
		Returns -1 if thread contention
		monitoring is disabled.
waitedcount	CountStatistic	Total number of times the thread was in
		WAITING or TIMED_WAITING states.
lockname	StringStatistic	String representation of the monitor lock
		that the thread is blocked to enter or
		waiting to be notified through the
		Object.wait method.

190 Sun GlassFish Enterprise Server 2.1 Administration Guide • December 2008