Class not found with cglib loaded in a parent (non-webapp) classloader.
(CglibProxiedPropertyChangeObserverImpl)
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Key: TAPESTRY-1301
URL: https://issues.apache.org/jira/browse/TAPESTRY-1301
Project: Tapestry
Issue Type: Bug
Components: Framework
Affects Versions: 4.1.2
Environment: Tomcat 5.5.20
Reporter: Marcus Schulte
We need CGLIB to reside in Tomcat's common/lib Classloader due to
Hibernate-Issues.
In this case, there is a ClassNotFoundException from
CglibProxiedPropertyChangeObserverImpl.observePropertyChanges().
This is, because net.sf.cglib.proxy.Enhancer's static create-method falls back
on the classloader, in which it is loaded. The correct behaviour, imo, would be
to make the enhancer use the thread-context-classloader.
Proposed patch (tested, works well):
In o.a.t.record.CglibPropertyChangeInterceptor change the lines (90ff):
_________________
Object ret = Enhancer.create(property.getClass(), interfaces,
new ObservableMethodFilter(),
new Callback[] { new LazyProxyDelegate(property), new
CglibPropertyChangeInterceptor(component, property, propertyName)});
_______________
into:
______________________
Enhancer e = new Enhancer();
e.setClassLoader( Thread.currentThread().getContextClassLoader() );
e.setSuperclass(property.getClass());
e.setInterfaces(interfaces);
e.setCallbackFilter(new ObservableMethodFilter());
e.setCallbacks(new Callback[] { new LazyProxyDelegate(property),
new CglibPropertyChangeInterceptor(component, property,
propertyName)});
Object ret = e.create();
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