eclipse里启动tomcat报错，c3p0相关

在eclipse 里启动tomcat，程序报错：

2011-08-25 06:22:06,163 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector]

com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@11ea65f -- APPARENT DEADLOCK!!! Cr

eating emergency threads for unassigned pending tasks!

2011-08-25 06:22:06,163 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector]

com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@11ea65f -- APPARENT DEADLOCK!!! Co

mplete Status:

Managed Threads: 3

Active Threads: 3

Active Tasks:

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@f27b6e (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@185982c (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1c984f9 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)

Pending Tasks:

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@13911fe

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1cc75cb

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@4976d6

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1190cfc

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1a3b17a

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1d8c794

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@11701fd

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@183bff8

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@b04d34

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@9c9874

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@dd151f

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@95aedf

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@10bc436

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@17ebdf8

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1e9f2e2

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@48e2c5

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1202a06

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@a71c9a

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@146c2cb

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@9ecc3e

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@172fbca

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1f08e98

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@21a44e

com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@aa1384

com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@1e76a88

com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@33d09

Pool thread stack traces:

Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]

java.net.SocketInputStream.socketRead0(Native Method)

java.net.SocketInputStream.read(SocketInputStream.java:129)

oracle.net.ns.Packet.receive(Unknown Source)

oracle.net.ns.NSProtocol.connect(Unknown Source)

oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:844)

oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)

oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)

oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)

oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)

oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)

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)

oracle.net.ns.Packet.receive(Unknown Source)

oracle.net.ns.NSProtocol.connect(Unknown Source)

oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:844)

oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)

oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)

oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)

oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)

oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)

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.read(SocketInputStream.java:129)

oracle.net.ns.Packet.receive(Unknown Source)

oracle.net.ns.NSProtocol.connect(Unknown Source)

oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:844)

oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:268)

oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:414)

oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)

oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)

oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)

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)

用tomcat单独启动，没有问题，网上查了下说要改小3p0的链接数，改了不起作用，后来修改了下maxIdleTime的参数，从300改为了1000，错误就没再出现，不知道是什么原因。