Java：如何讀取鎖定的線程轉儲

任何人都可以幫助我理解我應該如何讀取此堆棧跟蹤？Java：如何讀取鎖定的線程轉儲

"Task-[email protected]488cf1f1" daemon prio=6 tid=0x000000000880f000 nid=0x644 runnable [0x00000000213ef000] 
    java.lang.Thread.State: RUNNABLE 
    at java.net.SocketInputStream.socketRead0(Native Method) 
    at java.net.SocketInputStream.read(SocketInputStream.java:129) 
    at java.io.DataInputStream.readFully(DataInputStream.java:178) 
    at java.io.DataInputStream.readFully(DataInputStream.java:152) 
    at net.sourceforge.jtds.jdbc.SharedSocket.readPacket(SharedSocket.java:841) 
    at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java:722) 
    - locked <0x000000016ac834e0> (a java.util.ArrayList) 
    at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.java:466) 
    at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103) 
    at net.sourceforge.jtds.jdbc.ResponseStream.peek(ResponseStream.java:88) 
    at net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3928) 
    at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1045) 
    - locked <0x000000016ad0b838> (a net.sourceforge.jtds.jdbc.TdsCore) 
    at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:465) 
    at net.sourceforge.jtds.jdbc.JtdsStatement.executeQuery(JtdsStatement.java:1301) 
    at com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnection(DefaultConnectionTester.java:73) 
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.testPooledConnection(C3P0PooledConnectionPool.java:374) 
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishIdleResource(C3P0PooledConnectionPool.java:310) 
    at com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1999) 
    at com.mchange.v2.async.ThreadPerTaskAsynchronousRunner$TaskThread.run(ThreadPerTaskAsynchronousRunner.java:255)

顯然有一些鎖定問題正在進行，但我只是不知道如何讀取它。例如，具有「 - locked」的第一行表示「一個java.util.ArrayList」...這是否意味着在ResponseStream.getPacket（）（行466）中，它正在執行塊，並且ArrayList具有學科？

我的整個應用程序現在都被鎖定了，還有很多其他的堆棧跟蹤，比如這個，我試圖弄清楚如何閱讀這個，以便我可以看到問題的發生。

UPDATE

這是一個使用C3P0數據庫連接池的Web應用程序。正如你可以從下面的線程看到的，我有一些數據庫鎖定正在進行。我知道其他的方法來調試，但我真正的問題是我應該如何閱讀這些線程轉儲。

"http-80-13" daemon prio=6 tid=0x000000000909e000 nid=0x153c in Object.wait() [0x0000000021eed000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:579) 
    - locked <0x0000000167a88a60> (a com.mchange.v2.resourcepool.BasicResourcePool) 
    at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) 
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) 
    at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) 
    at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81) 
    at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) 
    at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) 
    at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142) 
    at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85) 
    at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354) 
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371) 
    at sun.reflect.GeneratedMethodAccessor105.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy15.getTransaction(Unknown Source) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:317) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy79.getCrowdProperties(Unknown Source) 
    at com.jamasoftware.contour.gateway.crowd.CrowdSsoServices.autoLogin(Unknown Source) 
    at com.jamasoftware.contour.security.AutoLoginServicesManager.autoLogin(Unknown Source) 
    at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:74) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.CheckSetupFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.concurrent.ConcurrentSessionFilter.doFilterHttp(ConcurrentSessionFilter.java:99) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.ExpirationFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.GzipFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:864) 
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) 
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1665) 
    at java.lang.Thread.run(Thread.java:619) 

"http-80-12" daemon prio=6 tid=0x000000000909d800 nid=0xe90 in Object.wait() [0x0000000021ded000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:579) 
    - locked <0x0000000167a88a60> (a com.mchange.v2.resourcepool.BasicResourcePool) 
    at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) 
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) 
    at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) 
    at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81) 
    at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) 
    at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) 
    at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142) 
    at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85) 
    at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354) 
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371) 
    at sun.reflect.GeneratedMethodAccessor105.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy15.getTransaction(Unknown Source) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:317) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy79.getCrowdProperties(Unknown Source) 
    at com.jamasoftware.contour.gateway.crowd.CrowdSsoServices.autoLogin(Unknown Source) 
    at com.jamasoftware.contour.security.AutoLoginServicesManager.autoLogin(Unknown Source) 
    at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:74) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.CheckSetupFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.concurrent.ConcurrentSessionFilter.doFilterHttp(ConcurrentSessionFilter.java:99) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.ExpirationFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.GzipFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:864) 
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) 
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1665) 
    at java.lang.Thread.run(Thread.java:619) 

"http-80-11" daemon prio=6 tid=0x000000000909c800 nid=0x144c in Object.wait() [0x0000000021ced000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:579) 
    - locked <0x0000000167a88a60> (a com.mchange.v2.resourcepool.BasicResourcePool) 
    at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) 
    at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525) 
    at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128) 
    at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:81) 
    at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) 
    at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) 
    at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142) 
    at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85) 
    at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354) 
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:555) 
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371) 
    at sun.reflect.GeneratedMethodAccessor105.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy15.getTransaction(Unknown Source) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:317) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) 
    at $Proxy79.getCrowdProperties(Unknown Source) 
    at com.jamasoftware.contour.gateway.crowd.CrowdSsoServices.autoLogin(Unknown Source) 
    at com.jamasoftware.contour.security.AutoLoginServicesManager.autoLogin(Unknown Source) 
    at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:74) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.CheckSetupFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.concurrent.ConcurrentSessionFilter.doFilterHttp(ConcurrentSessionFilter.java:99) 
    at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.ExpirationFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at com.jamasoftware.contour.view.filter.GzipFilter.doFilter(Unknown Source) 
    at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) 
    at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:864) 
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) 
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1665) 
    at java.lang.Thread.run(Thread.java:619)

謝謝！ -Sean

來源

2011-08-08 Sean Adkinson

你說的是「線程轉儲」？ –

如果你認爲你有死鎖，請發佈整個線程轉儲。 FWIW，這個線程看起來沒什麼問題 - 只是用db來處理一些I/O。 – nojo

添加了更多的線程從線程轉儲...完整的線程轉儲太長張貼（它不會讓我） –

這種在JDBC調用中的鎖定是正常的。我猜你的問題不在JDBC層。

因爲我看不到數據庫控制檯，我猜你的問題是數據庫端的兩件事之一，死鎖或停頓的查詢。再次檢查數據庫控制檯，問題似乎不在JDBC代碼中。如果您看不到數據庫控制檯，請打開JDBC中的SQL跟蹤並查看正在運行的查詢。

真正的Java級死鎖將清楚地表明在線程轉儲中。您似乎遇到性能問題，數據庫查詢響應非常緩慢，這會消耗您的所有連接。

來源

2011-08-08 18:20:52 KaizenSoze

謝謝，我做了更多的挖掘後開始另一個問題，它似乎是在數據庫端。 http://stackoverflow.com/questions/6987562/c3p0-connection-idle-check-hangs-with-sql-server –

我得到了同樣的問題，使用C3P0調試模型找出哪些代碼使用一部分的會話，而不是釋放看到c3p0 hangs in awaitAvailable with hibernate

。

附加C3P0配置：

debugUnreturnedConnectionStackTraces = true; 
unreturnedConnectionTimeout = 20 ; // That's i used for

來源

2013-05-09 13:10:06

Java：如何讀取鎖定的線程轉儲

回答

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