I managed to reproduce the issue with a simplified model. Notice that the same code seemed to pass the test yoesterday...not today.
I can't attach files so I paste the model here @PersistenceCapable class Inner{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) Key key; } @PersistenceCapable class Outer{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) Key key; @Persistent Inner inner; public Outer(){ inner = new Inner(); } // public void setInner(Inner in){ // inner = in; // } } @PersistenceCapable class Container{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) Key key; @Persistent ArrayList<Outer> outers; @Persistent ArrayList<Inner> inners; public void addOuters( int n){ outers = new ArrayList<Outer>(); for (int i = 0; i < n; i++){ outers.add(new Outer()); } } public void addInners(int n){ inners = new ArrayList<Inner>(); for (int i = 0; i < n; i++){ inners.add(new Inner()); } } } public class TestJDOException { private final LocalServiceTestHelper helper = new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig()); private static final PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory("transactions-optional"); @Before public void setUp() throws Exception { helper.setUp(); } @After public void tearDown() throws Exception { helper.tearDown(); } @Test public void testAddInners(){ Key key = null; Container container = new Container(); container.addInners(1); PersistenceManager pm = pmf.getPersistenceManager(); try{ pm.makePersistent(container); key = container.key; } finally{ pm.close(); } pm = pmf.getPersistenceManager(); try{ container = pm.getObjectById(Container.class, key); System.out.println(container.inners); System.out.println(container.outers); } finally{ pm.close(); } } @Test public void testAddOuters(){ Key key = null; Container container = new Container(); container.addOuters(1); PersistenceManager pm = pmf.getPersistenceManager(); try{ pm.makePersistent(container); key = container.key; } finally{ pm.close(); } pm = pmf.getPersistenceManager(); try{ container = pm.getObjectById(Container.class, key); System.out.println(container.inners); System.out.println(container.outers); } finally{ pm.close(); } } } First test passes, second fails. Every test adding Outers fails as well. Thanks to everybody Lorenzo -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.