public static void main(String[] args)
  {
    EClass x = EcorePackage.Literals.ESTRUCTURAL_FEATURE;
    String lookingForName = "name";
    Set<EObject> models = new HashSet<EObject>();
    models.add(EcorePackage.eINSTANCE);
    for (TreeIterator<EObject> i = EcoreUtil.getAllContents(models); i.hasNext();)
    {
      EObject eObject = i.next();
      if (eObject instanceof EClass)
      {
        EClass otherEClass = (EClass)eObject;
        if (x.isSuperTypeOf((EClass)eObject))
        {
          System.out.println("It's a sublcass: " + otherEClass);
        }

        for (EStructuralFeature eStructuralFeature : otherEClass.getEStructuralFeatures())
        {
          if (lookingForName.equals(eStructuralFeature.getName()))
          {
            System.out.println("It has the feautre: " + otherEClass.getName() + " : " + eStructuralFeature);
          }
        }
      }
    }
  }