[hibernate-issues] [Hibernate-JIRA] Assigned: (HHH-4063) NPE reading metadata from an mapped interface

[Adam Warski (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Warski reassigned HHH-4063:
--------------------------------

    Assignee: Adam Warski

> NPE reading metadata from an mapped interface
> ---------------------------------------------
>
>                 Key: HHH-4063
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4063
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: envers
>    Affects Versions: 3.3.2
>         Environment: Hibernate-core 3.3.2GA, Envers 1.2.1GA
>            Reporter: Hernán Chanfreau
>            Assignee: Adam Warski
>         Attachments: interface.mapping.test.zip, interfaceMappingSupportPatch.txt
>
>
> The problem arises when there is a mapped interface to load as a persistent class. 
> The metadata reader from envers do not care about interfaces.
> See the discussion about it here:
> http://www.jboss.org/index.html?module=bb&op=viewtopic&t=156233
> We've patch envers doing this:
> In AuditedPropertiesReader.addPropertiesFromClass(XClass clazz) we add the condition superclazz != null.
> 	private void addPropertiesFromClass(XClass clazz)  {
> 		XClass superclazz = clazz.getSuperclass();
>                // superclazz != null applies when superclazz is an interface
> 		if ((superclazz != null) && (!"java.lang.Object".equals(superclazz.getName()))) {
> 			addPropertiesFromClass(superclazz);
> 		}
> 		addFromProperties(clazz.getDeclaredProperties("field"), "field", fieldAccessedPersistentProperties);
> 		addFromProperties(clazz.getDeclaredProperties("property"), "property", propertyAccessedPersistentProperties);
> 	}

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