question: public static ThreadDump create ( ) { ThreadDump threadDump = _threadDumpRef . get ( ) ; if ( threadDump == null ) { threadDump = new ThreadDumpPro ( ) ; _threadDumpRef . compareAndSet ( null , threadDump ) ; threadDump = _threadDumpRef . get ( ) ; } return threadDump ; }
target:  Returns the singleton instance, creating if necessary.   An instance of  com.caucho.server.admin.ProThreadDump will be returned if available and  licensed.  ProThreadDump includes the URI of the request the thread is processing, if applicable.