问题描述
在应用程序启动期间出现此错误，它连接到在虚拟框中运行的Oracle DB：
20200924182802.072Uninitialized129Uninitialized`Uninitialized``Uninitialized`WARN`com.mchange.v2.async.ThreadPoolAsynchronousRunner`com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@67237c3e -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks! `20200924182802.075`Uninitialized`129UninitializedUninitialized``UninitializedWARNcom.mchange.v2.async.ThreadPoolAsynchronousRunnercom.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@67237c3e -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@54e7df38
on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#0
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@19bb1ac0
on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#1
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@2c6f0fde
on thread: C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#2
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@48f66bde
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@220273e7
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@632e007d
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@376be239
Pool thread stack traces:
Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#1,5,main]
java.net.InetAddress.getLocalHost(InetAddress.java:1486)
oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945)
oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#2,main]
java.net.InetAddress.getLocalHost(InetAddress.java:1486)
oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945)
oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
Thread[C3P0PooledConnectionPoolManager[identityToken->2u1lo5ac1hnhzmq1ul0o8t|18bedf20]-HelperThread-#0,main]
java.net.InetAddress.getLocalHost(InetAddress.java:1486)
oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:945)
oracle.jdbc.driver.T4CTTIoauthenticate.(T4CTTIoauthenticate.java:238)
oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:553)
oracle.jdbc.driver.T4CConnection.(T4CConnection.java:254)
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:214)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
是否有解决此问题的指针？
解决方法
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