2016-10-05 22:16:36 [WARN]-[Thread: Timer-4]-[com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector.run()]: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@6a14bef3 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks! 2016-10-05 22:16:36 [WARN]-[Thread: Timer-4]-[com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector.run()]: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@6a14bef3 -- APPARENT DEADLOCK!!! Complete Status: Managed Threads: 3 Active Threads: 3 Active Tasks: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@3d351172 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@670c72c2 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@62425368 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0) Pending Tasks: com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@7072033d Pool thread stack traces: Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:129) com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114) com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161) com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189) com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3036) com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:624) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1110) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2395) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2428) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2213) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:797) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:513) com.mysql.jdbc.Util.handleNewInstance(Util.java:411) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547) Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:129) com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114) com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161) com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189) com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3036) com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:624) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1110) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2395) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2428) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2213) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:797) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:513) com.mysql.jdbc.Util.handleNewInstance(Util.java:411) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547) Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main] java.net.SocketInputStream.socketRead0(Native Method) java.net.SocketInputStream.read(SocketInputStream.java:129) com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114) com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161) com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189) com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3036) com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:624) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1110) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2395) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2428) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2213) com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:797) com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) java.lang.reflect.Constructor.newInstance(Constructor.java:513) com.mysql.jdbc.Util.handleNewInstance(Util.java:411) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305) com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182) com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137) com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32) com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810) com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
这个错误如何解决?