[TAPESTRY-2260] Null relationships cause an NPE inside Hibernate when being value encoded by RadioGroup

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.0.11
• Fix Version/s: 5.0.12
• Component/s: tapestry-hibernate
• Assignee: Howard Lewis Ship
• Reporter: Howard Lewis Ship
• Created: 14/Mar/08 18:56
• Updated: 14/Mar/08 21:25
• Resolved: 14/Mar/08 21:25

Description

If a property is null and that property is value encoded (perhaps due to a RadioGroup), then an NPE occurs:

1. sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:36)
2. sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:18)
3. java.lang.reflect.Field.get(Field.java:357)
4. org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:32)
5. org.apache.tapestry.internal.hibernate.HibernateEntityValueEncoder.toClient(HibernateEntityValueEncoder.java:46)
6. org.apache.tapestry.corelib.components.RadioGroup.setupRender(RadioGroup.java:146)
7. org.apache.tapestry.corelib.components.RadioGroup.setupRender(RadioGroup.java)

The ValueEncoder should check for null, and return null.