@Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;

      AllowedValues a2 = (AllowedValues) o;
      if (canBeOred != a2.canBeOred) {
        return false;
      }
      Set<PsiAnnotationMemberValue> v1 =
          new THashSet<PsiAnnotationMemberValue>(Arrays.asList(values));
      Set<PsiAnnotationMemberValue> v2 =
          new THashSet<PsiAnnotationMemberValue>(Arrays.asList(a2.values));
      if (v1.size() != v2.size()) {
        return false;
      }
      for (PsiAnnotationMemberValue value : v1) {
        for (PsiAnnotationMemberValue value2 : v2) {
          if (same(value, value2, value.getManager())) {
            v2.remove(value2);
            break;
          }
        }
      }
      return v2.isEmpty();
    }
  private static Map<MethodSignature, HierarchicalMethodSignature> buildMethodHierarchy(
      PsiClass aClass,
      PsiSubstitutor substitutor,
      final boolean includePrivates,
      final Set<PsiClass> visited,
      boolean isInRawContext) {
    Map<MethodSignature, HierarchicalMethodSignature> result =
        new LinkedHashMap<MethodSignature, HierarchicalMethodSignature>();
    final Map<MethodSignature, List<PsiMethod>> sameParameterErasureMethods =
        new THashMap<MethodSignature, List<PsiMethod>>(
            MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY);

    Map<MethodSignature, HierarchicalMethodSignatureImpl> map =
        new THashMap<MethodSignature, HierarchicalMethodSignatureImpl>(
            new TObjectHashingStrategy<MethodSignature>() {
              @Override
              public int computeHashCode(MethodSignature signature) {
                return MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY.computeHashCode(
                    signature);
              }

              @Override
              public boolean equals(MethodSignature o1, MethodSignature o2) {
                if (!MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY.equals(o1, o2))
                  return false;
                List<PsiMethod> list = sameParameterErasureMethods.get(o1);
                boolean toCheckReturnType = list != null && list.size() > 1;
                if (!toCheckReturnType) return true;
                PsiType returnType1 =
                    ((MethodSignatureBackedByPsiMethod) o1).getMethod().getReturnType();
                PsiType returnType2 =
                    ((MethodSignatureBackedByPsiMethod) o2).getMethod().getReturnType();
                if (returnType1 == null && returnType2 == null) return true;
                if (returnType1 == null || returnType2 == null) return false;

                PsiType erasure1 =
                    TypeConversionUtil.erasure(o1.getSubstitutor().substitute(returnType1));
                PsiType erasure2 =
                    TypeConversionUtil.erasure(o2.getSubstitutor().substitute(returnType2));
                return erasure1.equals(erasure2);
              }
            });

    for (PsiMethod method : aClass.getMethods()) {
      if (!method.isValid()) {
        throw new PsiInvalidElementAccessException(
            method, "class.valid=" + aClass.isValid() + "; name=" + method.getName());
      }
      if (!includePrivates && method.hasModifierProperty(PsiModifier.PRIVATE)) continue;
      final MethodSignatureBackedByPsiMethod signature =
          MethodSignatureBackedByPsiMethod.create(method, substitutor, isInRawContext);
      HierarchicalMethodSignatureImpl newH = new HierarchicalMethodSignatureImpl(signature);

      List<PsiMethod> list = sameParameterErasureMethods.get(signature);
      if (list == null) {
        list = new SmartList<PsiMethod>();
        sameParameterErasureMethods.put(signature, list);
      }
      list.add(method);

      LOG.assertTrue(newH.getMethod().isValid());
      result.put(signature, newH);
      map.put(signature, newH);
    }

    for (PsiClassType superType : aClass.getSuperTypes()) {
      PsiClassType.ClassResolveResult superTypeResolveResult = superType.resolveGenerics();
      PsiClass superClass = superTypeResolveResult.getElement();
      if (superClass == null) continue;
      if (!visited.add(superClass)) continue; // cyclic inheritance
      final PsiSubstitutor superSubstitutor = superTypeResolveResult.getSubstitutor();
      PsiSubstitutor finalSubstitutor =
          obtainFinalSubstitutor(superClass, superSubstitutor, substitutor, isInRawContext);

      final boolean isInRawContextSuper =
          (isInRawContext || PsiUtil.isRawSubstitutor(superClass, superSubstitutor))
              && superClass.getTypeParameters().length != 0;
      Map<MethodSignature, HierarchicalMethodSignature> superResult =
          buildMethodHierarchy(superClass, finalSubstitutor, false, visited, isInRawContextSuper);
      visited.remove(superClass);

      List<Pair<MethodSignature, HierarchicalMethodSignature>> flattened =
          new ArrayList<Pair<MethodSignature, HierarchicalMethodSignature>>();
      for (Map.Entry<MethodSignature, HierarchicalMethodSignature> entry : superResult.entrySet()) {
        HierarchicalMethodSignature hms = entry.getValue();
        MethodSignature signature = entry.getKey();
        PsiClass containingClass = hms.getMethod().getContainingClass();
        List<HierarchicalMethodSignature> supers =
            new ArrayList<HierarchicalMethodSignature>(hms.getSuperSignatures());
        for (HierarchicalMethodSignature aSuper : supers) {
          PsiClass superContainingClass = aSuper.getMethod().getContainingClass();
          if (containingClass != null
              && superContainingClass != null
              && !containingClass.isInheritor(superContainingClass, true)) {
            // methods must be inherited from unrelated classes, so flatten hierarchy here
            // class C implements SAM1, SAM2 { void methodimpl() {} }
            // hms.getSuperSignatures().remove(aSuper);
            flattened.add(
                new Pair<MethodSignature, HierarchicalMethodSignature>(signature, aSuper));
          }
        }
        putInMap(aClass, result, map, hms, signature);
      }
      for (Pair<MethodSignature, HierarchicalMethodSignature> pair : flattened) {
        putInMap(aClass, result, map, pair.second, pair.first);
      }
    }

    for (Map.Entry<MethodSignature, HierarchicalMethodSignatureImpl> entry : map.entrySet()) {
      HierarchicalMethodSignatureImpl hierarchicalMethodSignature = entry.getValue();
      MethodSignature methodSignature = entry.getKey();
      if (result.get(methodSignature) == null
          && PsiUtil.isAccessible(
              aClass.getProject(), hierarchicalMethodSignature.getMethod(), aClass, aClass)) {
        LOG.assertTrue(hierarchicalMethodSignature.getMethod().isValid());
        result.put(methodSignature, hierarchicalMethodSignature);
      }
    }

    return result;
  }