Thread: [Hibernate-issues] [Hibernate-JIRA] Closed: (HB-551) Proxool included with 2.1 throws exception on s

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Message:

   The following issue has been closed.

   Resolver: Gavin King
       Date: Sun, 14 Dec 2003 7:48 PM

I just upgraded to proxool 0.8.3. We kinda knew in advance that there might be some issues between proxool and CGLIB2. Hopefully should now be fixed.
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View the issue:

  http://opensource.atlassian.com/projects/hibernate/secure/ViewIssue.jspa?key=HB-551

Here is an overview of the issue:
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        Key: HB-551
    Summary: Proxool included with 2.1 throws exception on startup.
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: FIXED

    Project: Hibernate2
 Components: 
             core
   Fix Fors:
             2.1.1
   Versions:
             2.1

   Assignee: Gavin King
   Reporter: Krzysztof Dabrowski

    Created: Sun, 14 Dec 2003 12:31 PM
    Updated: Sun, 14 Dec 2003 7:48 PM
Environment: Hibernate 2.1 , MySQL 4.0.16, Mandrake Linux 9.2

Description:
I've decided to turn on Proxool connection pool and it throws the following exception on startup:

[19:20:56.899] Proxool Provider using delegate JDBC Driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://localhost/boxlife
[19:20:56.930] Proxool Provider Connection URL: proxool.hibernate-1:com.mysql.jdbc.Driver:jdbc:mysql://localhost/boxlife
[19:20:57.128] Proxool 0.8.2-bh-1+
[19:20:57.434] Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
[19:20:57.582] No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
[19:20:59.164] Prototype
[19:20:59.164] net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[19:20:59.164]  at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:192)
[19:20:59.164]  at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:330)
[19:20:59.164]  at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:246)
[19:20:59.164]  at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:406)
[19:20:59.164]  at org.logicalcobwebs.proxool.ProxyFactory.buildProxyConnection(ProxyFactory.java:44)
[19:20:59.164]  at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:150)
[19:20:59.164]  at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:95)
[19:20:59.164]  at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:42)
[19:20:59.164] Caused by: java.lang.reflect.InvocationTargetException
[19:20:59.164]  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[19:20:59.164]  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[19:20:59.164]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[19:20:59.164]  at java.lang.reflect.Method.invoke(Method.java:324)
[19:20:59.164]  at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:373)
[19:20:59.164]  at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:181)
[19:20:59.164]  ... 7 more
[19:20:59.164] Caused by: java.lang.ClassFormatError: Illegal Class name "java/sql/Connection$$EnhancerByCGLIB$$f39e9d85-2"
[19:20:59.164]  at java.lang.ClassLoader.defineClass0(Native Method)
[19:20:59.164]  at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
[19:20:59.164]  at java.lang.ClassLoader.defineClass(ClassLoader.java:382)
[19:20:59.164]  ... 13 more
[19:20:59.174] Couldn't get connection
[19:20:59.174] net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[19:20:59.174]  at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:192)
[19:20:59.174]  at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:330)
[19:20:59.174]  at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:246)
[19:20:59.174]  at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:406)
[19:20:59.174]  at org.logicalcobwebs.proxool.ProxyFactory.buildProxyConnection(ProxyFactory.java:44)
[19:20:59.174]  at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:150)
[19:20:59.174]  at org.logicalcobwebs.proxool.PrototyperController.buildConnection(PrototyperController.java:88)
[19:20:59.174]  at org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPool.java:222)
[19:20:59.174]  at org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:89)
[19:20:59.174]  at java.sql.DriverManager.getConnection(DriverManager.java:512)
[19:20:59.174]  at java.sql.DriverManager.getConnection(DriverManager.java:193)
[19:20:59.174]  at net.sf.hibernate.connection.ProxoolConnectionProvider.getConnection(ProxoolConnectionProvider.java:46)
[19:20:59.174]  at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
[19:20:59.174]  at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1078)
[19:20:59.174]  at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
[19:20:59.174]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.initHibernate(HibernatePlugIn.java:113)
[19:20:59.174]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.init(HibernatePlugIn.java:90)
[19:20:59.174]  at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1158)
[19:20:59.174]  at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
[19:20:59.174]  at javax.servlet.GenericServlet.init(GenericServlet.java:82)
[19:20:59.174]  at com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:511)
[19:20:59.174]  at com.caucho.server.dispatch.ServletManager.init(ServletManager.java:153)
[19:20:59.174]  at com.caucho.server.webapp.Application.start(Application.java:1318)
[19:20:59.174]  at com.caucho.server.webapp.WebAppEntry.createApplicationInt(WebAppEntry.java:656)
[19:20:59.174]  at com.caucho.server.webapp.WebAppEntry.createApplication(WebAppEntry.java:460)
[19:20:59.174]  at com.caucho.server.webapp.ApplicationContainer.start(ApplicationContainer.java:541)
[19:20:59.174]  at com.caucho.server.host.Host.start(Host.java:433)
[19:20:59.174]  at com.caucho.server.host.HostEntry.createHostInt(HostEntry.java:520)
[19:20:59.174]  at com.caucho.server.host.HostEntry.createHost(HostEntry.java:298)
[19:20:59.174]  at com.caucho.server.host.HostContainer.start(HostContainer.java:504)
[19:20:59.174]  at com.caucho.server.resin.ServletServer.start(ServletServer.java:727)
[19:20:59.174]  at com.caucho.server.resin.ResinServer.start(ResinServer.java:363)
[19:20:59.174]  at com.caucho.server.resin.Resin.init(Resin.java:284)
[19:20:59.174]  at com.caucho.server.resin.Resin.main(Resin.java:490)
[19:20:59.174] Caused by: java.lang.reflect.InvocationTargetException
[19:20:59.174]  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[19:20:59.174]  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[19:20:59.174]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[19:20:59.174]  at java.lang.reflect.Method.invoke(Method.java:324)
[19:20:59.174]  at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:373)
[19:20:59.174]  at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:181)
[19:20:59.174]  ... 33 more
[19:20:59.174] Caused by: java.lang.ClassFormatError: Illegal Field name "CGLIB$load_class$ARRAY0$_Ljava_lang_String;"
[19:20:59.174]  at java.lang.ClassLoader.defineClass0(Native Method)
[19:20:59.174]  at java.lang.ClassLoader.defineClass(ClassLoader.java:537)
[19:20:59.174]  at java.lang.ClassLoader.defineClass(ClassLoader.java:382)
[19:20:59.174]  ... 39 more
[19:20:59.222] Problem
[19:20:59.222] java.sql.SQLException: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[19:20:59.222]  at org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPool.java:238)
[19:20:59.222]  at org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:89)
[19:20:59.222]  at java.sql.DriverManager.getConnection(DriverManager.java:512)
[19:20:59.222]  at java.sql.DriverManager.getConnection(DriverManager.java:193)
[19:20:59.222]  at net.sf.hibernate.connection.ProxoolConnectionProvider.getConnection(ProxoolConnectionProvider.java:46)
[19:20:59.222]  at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
[19:20:59.222]  at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1078)
[19:20:59.222]  at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
[19:20:59.222]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.initHibernate(HibernatePlugIn.java:113)
[19:20:59.222]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.init(HibernatePlugIn.java:90)
[19:20:59.222]  at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1158)
[19:20:59.222]  at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
[19:20:59.222]  at javax.servlet.GenericServlet.init(GenericServlet.java:82)
[19:20:59.222]  at com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:511)
[19:20:59.222]  at com.caucho.server.dispatch.ServletManager.init(ServletManager.java:153)
[19:20:59.222]  at com.caucho.server.webapp.Application.start(Application.java:1318)
[19:20:59.222]  at com.caucho.server.webapp.WebAppEntry.createApplicationInt(WebAppEntry.java:656)
[19:20:59.222]  at com.caucho.server.webapp.WebAppEntry.createApplication(WebAppEntry.java:460)
[19:20:59.222]  at com.caucho.server.webapp.ApplicationContainer.start(ApplicationContainer.java:541)
[19:20:59.222]  at com.caucho.server.host.Host.start(Host.java:433)
[19:20:59.222]  at com.caucho.server.host.HostEntry.createHostInt(HostEntry.java:520)
[19:20:59.222]  at com.caucho.server.host.HostEntry.createHost(HostEntry.java:298)
[19:20:59.222]  at com.caucho.server.host.HostContainer.start(HostContainer.java:504)
[19:20:59.222]  at com.caucho.server.resin.ServletServer.start(ServletServer.java:727)
[19:20:59.222]  at com.caucho.server.resin.ResinServer.start(ResinServer.java:363)
[19:20:59.222]  at com.caucho.server.resin.Resin.init(Resin.java:284)
[19:20:59.222]  at com.caucho.server.resin.Resin.main(Resin.java:490)
[19:20:59.251] Could not obtain connection metadata
[19:20:59.251] java.sql.SQLException: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[19:20:59.251]  at org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPool.java:238)
[19:20:59.251]  at org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:89)
[19:20:59.251]  at java.sql.DriverManager.getConnection(DriverManager.java:512)
[19:20:59.251]  at java.sql.DriverManager.getConnection(DriverManager.java:193)
[19:20:59.251]  at net.sf.hibernate.connection.ProxoolConnectionProvider.getConnection(ProxoolConnectionProvider.java:46)
[19:20:59.251]  at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
[19:20:59.251]  at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1078)
[19:20:59.251]  at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:724)
[19:20:59.251]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.initHibernate(HibernatePlugIn.java:113)
[19:20:59.251]  at pl.elysium.hibernate.struts.util.HibernatePlugIn.init(HibernatePlugIn.java:90)
[19:20:59.251]  at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:1158)
[19:20:59.251]  at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
[19:20:59.251]  at javax.servlet.GenericServlet.init(GenericServlet.java:82)
[19:20:59.251]  at com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:511)
[19:20:59.251]  at com.caucho.server.dispatch.ServletManager.init(ServletManager.java:153)
[19:20:59.251]  at com.caucho.server.webapp.Application.start(Application.java:1318)
[19:20:59.251]  at com.caucho.server.webapp.WebAppEntry.createApplicationInt(WebAppEntry.java:656)
[19:20:59.251]  at com.caucho.server.webapp.WebAppEntry.createApplication(WebAppEntry.java:460)
[19:20:59.251]  at com.caucho.server.webapp.ApplicationContainer.start(ApplicationContainer.java:541)
[19:20:59.251]  at com.caucho.server.host.Host.start(Host.java:433)
[19:20:59.251]  at com.caucho.server.host.HostEntry.createHostInt(HostEntry.java:520)
[19:20:59.251]  at com.caucho.server.host.HostEntry.createHost(HostEntry.java:298)
[19:20:59.251]  at com.caucho.server.host.HostContainer.start(HostContainer.java:504)
[19:20:59.251]  at com.caucho.server.resin.ServletServer.start(ServletServer.java:727)
[19:20:59.251]  at com.caucho.server.resin.ResinServer.start(ResinServer.java:363)
[19:20:59.251]  at com.caucho.server.resin.Resin.init(Resin.java:284)
[19:20:59.251]  at com.caucho.server.resin.Resin.main(Resin.java:490)

Upgrading to latest (0.8.3) proxool fixes it:

[19:23:27.696] Proxool 0.8.3 (14-Dec-2003 16:06)
[19:23:27.982] Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
[19:23:28.055] No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)

so please update the proxool jar in cvs.

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Thread: [Hibernate-issues] [Hibernate-JIRA] Closed: (HB-551) Proxool included with 2.1 throws exception on s

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