Tomcat 5.5 and Connection Pooling

Mike Thu, 29 May 2008 10:25:35 -0700

Hello,


            I'm trying to set up connection pooling for Tomcat 5.5 but it
doesn't work.  When I start Tomcat, it shows in the Catalina log this:

 

SEVERE: Exception loading sessions from persistent storage

java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException: javax.naming.InitialContext

            at java.io.ObjectInputStream.readObject0(Unknown Source)

            at java.io.ObjectInputStream.defaultReadFields(Unknown Source)

            at java.io.ObjectInputStream.readSerialData(Unknown Source)

            at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)

            at java.io.ObjectInputStream.readObject0(Unknown Source)

            at java.io.ObjectInputStream.readObject(Unknown Source)

            at
org.apache.catalina.session.StandardSession.readObject(StandardSession.java:
1402)

            at
org.apache.catalina.session.StandardSession.readObjectData(StandardSession.j
ava:931)

            at
org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)

            at
org.apache.catalina.session.StandardManager.load(StandardManager.java:321)

            at
org.apache.catalina.session.StandardManager.start(StandardManager.java:637)

            at
org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:432)

            at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4160)

            at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:7
60)

            at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)

            at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)

            at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)

            at
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889
)

            at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)

            at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)

            at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)

            at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
t.java:120)

            at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)

            at
org.apache.catalina.core.StandardHost.start(StandardHost.java:736)

            at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)

            at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)

            at
org.apache.catalina.core.StandardService.start(StandardService.java:448)

            at
org.apache.catalina.core.StandardServer.start(StandardServer.java:700)

            at org.apache.catalina.startup.Catalina.start(Catalina.java:552)

            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

            at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

            at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)

            at java.lang.reflect.Method.invoke(Unknown Source)

            at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)

            at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)

Caused by: java.io.NotSerializableException: javax.naming.InitialContext

            at java.io.ObjectOutputStream.writeObject0(Unknown Source)

            at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)

            at java.io.ObjectOutputStream.writeSerialData(Unknown Source)

            at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown
Source)

            at java.io.ObjectOutputStream.writeObject0(Unknown Source)

            at java.io.ObjectOutputStream.writeObject(Unknown Source)

            at
org.apache.catalina.session.StandardSession.writeObject(StandardSession.java
:1478)

            at
org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.
java:948)

            at
org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:51
7)

            at
org.apache.catalina.session.StandardManager.unload(StandardManager.java:463)

            at
org.apache.catalina.session.StandardManager.stop(StandardManager.java:667)

            at
org.apache.catalina.core.StandardContext.stop(StandardContext.java:4360)

            at
org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:893)

            at
org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1191)

            at
org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1162)

            at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:313)

            at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
t.java:120)

            at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1055)

            at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1067)

            at
org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)

            at
org.apache.catalina.core.StandardService.stop(StandardService.java:510)

            at
org.apache.catalina.core.StandardServer.stop(StandardServer.java:734)

            at org.apache.catalina.startup.Catalina.stop(Catalina.java:602)

            at
org.apache.catalina.startup.Catalina$CatalinaShutdownHook.run(Catalina.java:
645)

 

 

  My java code shows the error message that it "Cannot create JDBC driver of
class 'sun.jdbc.odbc.JdbcOdbcDriver'" for my ODBC alias.

  Any help would be appreciated.

 

Thanks,

 

Mike

Tomcat 5.5 and Connection Pooling

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