Java Thread State occurs simultaneously 'RUNNABLE,WAITING'

Question

"Thread-1" #99 prio=5 os_prio=0 tid=0x00007f1ef15ad800 nid=0x1393 runnable [0x00007f1e419d8000]
   java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00000005c140bdc0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:550)
    at com.superatomfin.athena.feed.InstrumentAggregation.run(InstrumentAggregation.java:51)

many thread state like this, linux load become very high

I wonder what happened that led to the.

'java.lang.Thread.State: WAITING' but first line show 'runnable'

And ,How do I fix it?