[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3529) ConnectionWrapper is not visible from class loader
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-3529?page=c...
]
hugo lassiège commented on HHH-3529:
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You have to build hibernate from svn source. However, unfornately you will have to
maintain this fork of hibernate in your enterprise repository until it is fixed by
hibernate itself.
Otherwise you can try an AOP solution and change the class loader before the call to the
service, this is not an elegant solution but you don't have to maintain a hibernate
patch.
ConnectionWrapper is not visible from class loader
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Key: HHH-3529
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3529
Project: Hibernate Core
Issue Type: Bug
Components: core
Affects Versions: 3.2.6, 3.3.1
Environment: SpringFramework 2.5.5, Hibernate 3.2.6 / 3.3.1, Tomcat 5.5, CommonJ
Timer ( http://www.myfoo.de/commonj/ )
Reporter: Vladimir Kralik
Attachments: hibernate-3.2.6_p2.patch
Hibernate/Spring libraries are in app.war/WEB-INF/lib.
Timer is configured as resources in Tomcat and his libraries are in
$CATALINA_HOME/common/lib/.
Function call from GUI works, but the same function called by timers gives this exception
:
org.springframework.transaction.CannotCreateTransactionException: Could not openHibernate
Session for transaction; nested exception is java.lang.IllegalArgumentException:
interface org.hibernate.jdbc.ConnectionWrapper is not visible from class loader
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:599)
....
Caused by: java.lang.IllegalArgumentException: interface
org.hibernate.jdbc.ConnectionWrapper is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
at
org.hibernate.jdbc.BorrowedConnectionProxy.generateProxy(BorrowedConnectionProxy.java:67)
at
org.hibernate.jdbc.ConnectionManager.borrowConnection(ConnectionManager.java:163)
at org.hibernate.jdbc.JDBCContext.borrowConnection(JDBCContext.java:111)
at org.hibernate.impl.SessionImpl.connection(SessionImpl.java:359)
at
org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:510)
It's the same bug as was in HHH-2215, but this is not resolved.
I think, that the problem is extracting classloader from currentThread(). This is always
not null, so the next test in method getProxyClassLoader() is always false.
I my case, timer thread lives in top class loader, but hibernate libraries are inside
application class loader.
Attached patch removes classloader extracting from currentThread(). It works for my
case.
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