@Test
 public void nullSafeFromNotNull() throws Exception {
   assertNotNull(
       RecordReferences.nulSafeFrom(
           RecordTypeEnum.ASSEMBLY_UNBUILD, "A126", RecordIdType.INTERNAL));
 }
 @Test(expected = IllegalArgumentException.class)
 public void nullSafeFromNotIllegalArgument() throws Exception {
   RecordReferences.nulSafeFrom(null, "A126", null);
 }
 @Test
 public void nullSafeFromNull() throws Exception {
   assertNull(RecordReferences.nulSafeFrom(null, null, null));
 }