As an aside, this is clearly a configuration item for Spring. From my
application context....
<bean id="persistenceUnitManager"
class
=
"org
.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
<property name="persistenceXmlLocations">
<list>
<value>classpath:META-INF/persistence.xml</value>
</list>
</property>
<property name="loadTimeWeaver">
<bean
class
="org.springframework.instrument.classloading.SimpleLoadTimeWeaver"/>
</property>
</bean>
This was derived from several JPA+Spring+Wicket examples. The weaver
is non-optional with the way I've gotten this all working as far as it
is.
-David
On May 30, 2008, at 3:20 PM, David Nedrow wrote:
On May 30, 2008, at 2:26 PM, James Carman wrote:
Take a look at what classloaders loaded each of the classes. If the
class names are the same, then that means that they were loaded by
two
different classloaders. How are you setting up your application?
Are
all jars in your WEB-INF/lib directory?
I added the following to just before line that causes the cast
failure...
java.lang.ClassLoader ctxCl =
Thread.currentThread().getContextClassLoader();
java.lang.ClassLoader tcCl =
Protocol.class.getClassLoader();
java.lang.ClassLoader soCl =
item.getModelObject().getClass().getClassLoader();
System.out.println("ctxCl=" + ((ctxCl == null)
? "null"
: ctxCl.toString()));
System.out.println("tcCl=" + ((tcCl == null)
? "null"
: tcCl.toString()));
System.out.println("soCl=" + ((soCl == null)
? "null"
: soCl.toString()));
Below is the run output, which would appear to show
WebAppClassloader for the target, and a Spring loader for the
source. Isn't the whole point of Spring to do exactly that? Load
classes dynamically? In any case, any suggestions, or should I hit
the Spring forum now that it appear to be Spring specific?
-David
[TopLink Info]: 2008.05.30 03:07:21.737--ServerSession(878231)--
file:/Users/dnedrow/Developer/NetBeansProjects/FilterRequest/build/
web/WEB-INF/classes/-NetConfPU login successful
finding all Protocol instances
ctxCl=WebappClassLoader
delegate: true
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
EJBClassLoader :
urlSet = []
doneCalled = false
Parent -> [EMAIL PROTECTED]
tcCl=WebappClassLoader
delegate: true
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
EJBClassLoader :
urlSet = []
doneCalled = false
Parent -> [EMAIL PROTECTED]
soCl
=
org
.springframework
[EMAIL PROTECTED]
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