assertTrue("number of child collections should be 2", rootColl.getChildCollectionCount()==2);
c1 = rootColl.getChildCollection("dummy1"); assertNull(c1);
	public void testMultipleCreates() {		try {        	Collection rootColl = DatabaseManager.getCollection("xmldb:exist:///db");        	CollectionManagementService cms = (CollectionManagementService)				rootColl.getService("CollectionManagementService", "1.0");			assertNotNull(cms);        	cms.createCollection("dummy1");        	printChildren(rootColl);        	Collection c1 = rootColl.getChildCollection("dummy1");			assertNotNull(c1);        	cms.setCollection(c1);        	cms.createCollection("dummy2");        	Collection c2 = c1.getChildCollection("dummy2");			assertNotNull(c2);        	cms.setCollection(c2);        	cms.createCollection("dummy3");        	Collection c3 = c2.getChildCollection("dummy3");			assertNotNull(c3);        	cms.setCollection(rootColl);        	cms.removeCollection("dummy1");        	printChildren(rootColl);			assertTrue("number of child collections should be 2", 				rootColl.getChildCollectionCount()==2);		} catch(Exception e) {			e.printStackTrace();			fail(e.getMessage());		}	}