[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-2572) NullPointerException when cascade-merge detached entity graph that contains null component property

NullPointerException when cascade-merge detached entity graph that contains null component property --------------------------------------------------------------------------------------------------- Key: HHH-2572 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2572 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.3 Environment: hibernate 3.2.3 only Reporter: Nguyen Hau Giang Assignee: Gail Badner Priority: Critical Attachments: HHH-2572-testcase-corrected.patch, HHH-2572.patch, testCase.zip when merging detached entity graph whose leaf-entity contains null-component property, hibernate 3.2.3 will throw NPE. (leaf-entity level>2) No exception was thrown in hibenate 3.2.2 Mapping: Parent -> Child -> GrandChild All associations is cascade. GrandChild contains a component property. Test Case: parent=<load>; child=parent.get1Child(); GrandChild grandChild=new GrandChild(); grandChild.setComponent(null); child.add(grandChild); evict(parent);//session is closed ... merge(parent);//merge in new sesson -> THROW NullPointerException for further detail, see attache test case.