@Test
public void deregisterPropertyDefinitions() {
Assert.assertNotNull(PropertyClassManager.getInstance().getPropertyClass(MEMORY));
PropertyClass propertyClass = PropertyClassManager.getInstance().getPropertyClass(MEMORY);
propertyClass.deregisterPropertyDefinition("con1");
Assert.assertTrue(!propertyClass.isDefinitionExists("con1"));
}
class MemoryKey extends AbstractPropertyKey {
public MemoryKey(String name) {