所有线程处于TIMED_WAITING状态程序死掉

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并发程序线程dump后发现很多处于等待状态的线程（线程总数10-70个都试过）导致程序假死，用jstack检测未发现死锁：

"pool-116-thread-1" prio=5 tid=295 TIMED_WAITING
	at sun.misc.Unsafe.park(Native Method)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
	at jsr166y.LinkedTransferQueue.awaitMatch(LinkedTransferQueue.java:691)
	at jsr166y.LinkedTransferQueue.xfer(LinkedTransferQueue.java:600)
	   Local Variable: jsr166y.LinkedTransferQueue$Node#6
	at jsr166y.LinkedTransferQueue.poll(LinkedTransferQueue.java:1068)
	at com.jolbox.bonecp.BoneCP.getConnection(BoneCP.java:500)
	at com.jolbox.bonecp.BoneCPDataSource.getConnection(BoneCPDataSource.java:114)
	at test.Main.getSqlServerConnection(Main.java:232)