public Object[] getObjectsThatNotEqualsX() {
   CategoryEntity i1 = new CategoryEntity();
   i1.setKey(new CategoryKey(2));
   return new Object[] {i1};
 }
 public Object getObjectThatEqualsXButNotTheSame2() {
   CategoryEntity i1 = new CategoryEntity();
   i1.setKey(new CategoryKey(1));
   return i1;
 }
 public Object getObjectX() {
   CategoryEntity i1 = new CategoryEntity();
   i1.setKey(new CategoryKey(1));
   return i1;
 }