Hi Scott, I believe the classloading problem you mention is the same. Both BlobProxy.getProxyClassLoader() and SerializableBlobProxy.getProxyClassLoader() return ClassLoaderHelper.getContextClassLoader() if non-null.
Gail ----- Original Message ----- > From: "Scott Marlow" <smar...@redhat.com> > To: "Gail Badner" <gbad...@redhat.com>, "hibernate-dev" > <hibernate-dev@lists.jboss.org> > Sent: Tuesday, July 8, 2014 2:19:50 PM > Subject: Re: [hibernate-dev] HHH-8310 : WrappedBlob/WrappedClob classloading > problem > > On 07/08/2014 05:04 PM, Scott Marlow wrote: > > This sounds similar to https://community.jboss.org/message/879546 > > I was hoping to hear more feedback from the above link but didn't. I > suspect that its a classloader issue with ear sub-deployments having > Hibernate on their classpath but not the ear top level classloader. > > > > > > On 07/08/2014 03:53 PM, Gail Badner wrote: > >> HHH-8310 [1] mentions a Spring bug SPR-11125 [2] that results in threads > >> having a different ContextClassLoader (CCL) than their caller. As a > >> result, SerializableBlobProxy.generateProxy() throws > >> IllegalArgumentException because WrappedBlob is not found. The same > >> happens for SerializableClobProxy.generateProxy() because WrappedClob is > >> not found. > >> > >> IIUC, this will be fixed by accessing the ClassLoaderService in Hibernate > >> 5. > >> > >> I'm looking for either a fix or workaround for this in Hibernate 4.2.x and > >> 4.3.x. > >> > >> A) A possible fix for HHH-8310 suggests using the ClassLoader returned by > >> WrappedBlob.class.getClassLoader(). Could this somehow get an unintended > >> ClassLoader? > > Good question but this change might impact HHH-8010. Might be good to > check with Brett on why OSGi needs to use an alternative classloader > (which is set in ClassLoaderHelper). > > >> > >> B) A workaround is for the caller to initialize > >> ClassLoaderHelper.overridenClassLoader before calling Spring. > > I don't think this will work in a multiple deployment environment (e.g. > WildFly) unless ClassLoaderHelper defaulted to the ORM classloader > instead of an application level classloader. > > >> > >> Which would be more appropriate? > >> > >> Thanks, > >> Gail > >> > >> [1] https://hibernate.atlassian.net/browse/HHH-8310 > >> [2] https://jira.spring.io/browse/SPR-11125 > >> _______________________________________________ > >> hibernate-dev mailing list > >> hibernate-dev@lists.jboss.org > >> https://lists.jboss.org/mailman/listinfo/hibernate-dev > >> > > > > _______________________________________________ > > hibernate-dev mailing list > > hibernate-dev@lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/hibernate-dev > > > > _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
