[hibernate-issues] [Hibernate-JIRA] Resolved: (HV-492) Validation of CGLIB enhanced Objects always return null

[Hardy Ferentschik (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HV-492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hardy Ferentschik resolved HV-492.
----------------------------------

    Resolution: Rejected

> Validation of CGLIB enhanced Objects always return null
> -------------------------------------------------------
>
>                 Key: HV-492
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-492
>             Project: Hibernate Validator
>          Issue Type: Bug
>    Affects Versions: 4.1.0.Final, 4.2.0.Beta2
>         Environment: Hibernate Validator 4.1.0-final and 4.2.0-BETA2, cglib 2.2
>            Reporter: Christian Fehmer
>
> A validation of a cglib enhanced object will always validate "null". 
> The validator (i tested it with an custom validator) always gets "null" as the value in the isValid method. The cglib enhanced object has a field "selection" and a getter/setter pair for this field. The hibernate validator uses the org.hibernate.validator.util.ReflectionHelper to access the field selection directly. That fails on a cglib enhanced object.
> My workaround for now: I replaced the org.hibernate.validator.util.ReflectionHelper.getValue method. When object is a cglib enhanced object i invoke the getter method instead of accessing the field directly.
> replaced method:
> {code}
> 	public static Object getValue(Member member, Object object) {
> 		Object value = null;
> 		if (member instanceof Method) {
> 			...
> 		} else if (member instanceof Field) {
> 			// FIX: use getter method on cglib fields
> 			if (object.getClass().getName().contains("$$")) {
> 				String methodName = member.getName();
> 				methodName = "get"+ String.valueOf(methodName.charAt(0)).toUpperCase()+ methodName.substring(1);
> 				try {
> 					Method method = member.getDeclaringClass().getMethod(
> 							methodName);
> 					method.setAccessible(true);
> 					value = method.invoke(object);
> 				} catch (Exception e) {
> 					throw new ValidationException("Unable to access  "
> 							+ methodName, e);
> 				}
> 			} else {
> 				...
> 			}
> 		}
> 		return value;
> 	}
> {code}

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