[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2542) NullPointerException in TypeFactory.replaceAssociations for ComponentType

[Reto Urfer (JIRA)]

NullPointerException in TypeFactory.replaceAssociations for ComponentType
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                 Key: HHH-2542
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2542
             Project: Hibernate3
          Issue Type: Bug
          Components: core
    Affects Versions: 3.2.3
            Reporter: Reto Urfer


The following code block will throw a NullPointerException when targetComponentValues  should be determines and target[i] contains a NULL value.

			else if ( types[i].isComponentType() ) {
				// need to extract the component values and check for subtype replacements...
				AbstractComponentType componentType = ( AbstractComponentType ) types[i];
				Type[] subtypes = componentType.getSubtypes();
				Object[] origComponentValues = original[i] == null ? new Object[subtypes.length] : componentType.getPropertyValues( original[i], session );
				Object[] targetComponentValues = componentType.getPropertyValues( target[i], session );
				replaceAssociations( origComponentValues, targetComponentValues, subtypes, session, null, copyCache, foreignKeyDirection );


This problem can be fixed the same way as it is prevented when origComponentValues are determined (see following line)
Object[] targetComponentValues = target[i] == null ? new Object[subtypes.length] : componentType.getPropertyValues( target[i], session );
				copied[i] = target[i];
			}


The problem did not exist in Version 3.2.2

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