请分析一下错误原因,是否因为线程阻塞造成那?
java.lang.NullPointerException
at cmtsmib.Cmts.searchMib(Ljava.lang.String;Ljava.lang.String;)Ljava.uti
l.ArrayList;(Optimized Method)
at cmtsmib.Cmts.getcmtsandcmStatus(Ljava.lang.String;)V(Cmts.java:37)
at cmtsmib.SaveTimerTask.run()V(SaveTimer.java:59)
at java.util.TimerThread.mainLoop()V(Timer.java:432)
at java.util.TimerThread.run()V(Timer.java:382)
at java.lang.Thread.startThreadFromVM(Ljava.lang.Thread;)V(Unknown Sourc
e)