Hi,
Can you please explain the casting rule on this example? Why does it cause
exception?
Thanks
The userProfileDO is the object extracted from database through hibernate
ArrayList<Contact> tmpContactList = (ArrayList<Contact>)
userProfileDO.getContacts();
//warning message: List is a raw type. References to generic type List<E>
should be parameterized
public List getContacts()
{
return this.contacts;
}
The above ArrayList<Contact> casting caused exception
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public
abstract com.project.frontpage.client.serialize.UserProfile
com.rentorama2.frontpage.client.rpc.Access.getUserProfile(long) throws
com.project.frontpage.client.serialize.LoginServiceException' threw an
unexpected exception: java.lang.ClassCastException:
org.hibernate.collection.PersistentList cannot be cast to java.util.ArrayList
......
Caused by: java.lang.ClassCastException:
org.hibernate.collection.PersistentList cannot be cast to java.util.ArrayList
at
com.project.frontpage.server.dao.UserProfileDAO.getUserProfile(UserProfileDAO.java:250)
at
com.project.frontpage.server.impl.AccessImpl.getUserProfile(AccessImpl.java:655)
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