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服务器启动异常：mysql 报错
vax.inject.Inject' annotation found and supported for autowiring
2018-05-29 17:19:16.038 WARN 2324 --- [ Timer-0] com.mchange.v2.async.ThreadPoolAsynchronousRunner [ run: 608] : com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1b50daeb -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2018-05-29 17:19:16.042 WARN 2324 --- [ Timer-0] com.mchange.v2.async.ThreadPoolAsynchronousRunner [ run: 624] : com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1b50daeb -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@159737f1 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@11a8b19b (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@54aa3dca (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@49303236
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@65b4ac5e
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
java.net.SocketInputStream.read(SocketInputStream.java:171)
java.net.SocketInputStream.read(SocketInputStream.java:141)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:112)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:159)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:187)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3158)
com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:598)
com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1086)
com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506)
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2539)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2321)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
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-#1,5,main]
java.net.SocketInputStream.socketRead0(Native Method)
java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
java.net.SocketInputStream.read(SocketInputStream.java:171)
java.net.SocketInputStream.read(SocketInputStream.java:141)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:112)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:159)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:187)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3158)
com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:598)
com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1086)
com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506)
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2539)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2321)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
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.socketRead(SocketInputStream.java:116)
java.net.SocketInputStream.read(SocketInputStream.java:171)
java.net.SocketInputStream.read(SocketInputStream.java:141)
com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:112)
com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:159)
com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:187)
com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3158)
com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:598)
com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1086)
com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506)
com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2539)
com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2321)
com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832)
com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:423)
com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
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)
可能原因：
1.数据库死锁,kill 掉死锁进程
2.数据库连接出错，连接账号或者密码出错，或者连接数据库被限制了
（给人一种死锁的错觉，实际上是连接问题）