private void _verifyProperty(BeanDescription beanDesc, boolean verifyDesc, boolean verifyIndex) {
   assertNotNull(beanDesc);
   List<BeanPropertyDefinition> props = beanDesc.findProperties();
   assertEquals(2, props.size());
   for (BeanPropertyDefinition prop : props) {
     String name = prop.getName();
     final PropertyMetadata md = prop.getMetadata();
     if ("a".equals(name)) {
       assertFalse(md.isRequired());
       assertNull(md.getRequired());
       if (verifyDesc) {
         assertEquals(PropDescBean.A_DESC, md.getDescription());
       }
       if (verifyIndex) {
         assertNull(md.getIndex());
       }
     } else if ("b".equals(name)) {
       assertTrue(md.isRequired());
       assertEquals(Boolean.TRUE, md.getRequired());
       if (verifyDesc) {
         assertNull(md.getDescription());
       }
       if (verifyIndex) {
         assertEquals(Integer.valueOf(PropDescBean.B_INDEX), md.getIndex());
       }
     } else {
       fail("Unrecognized property '" + name + "'");
     }
   }
 }