NPE in NodeTypeManager when validating a recursive node definition

Create a node definition with a child node of the same type (using CND or API) Register it with the NodeTypeManager Exemple node definitions : CND <mx = urn:myproject> [mx:type] + * (mx:type) multiple API NodeTypeManager manager; // [...] final NodeTypeTemplate nodeType = manager.createNodeTypeTemplate(); nodeType.setName("mx:type"); final NodeDefinitionTemplate subTypes = manager.createNodeDefinitionTemplate(); subTypes.setRequiredPrimaryTypeNames(new String[] {"mx:type"} ); nodeType.getNodeDefinitionTemplates().add(subTypes);