@Nullable
  private static PsiMethod existingClassIsCompatible(PsiClass aClass, List<ParameterChunk> params) {
    if (params.size() == 1) {
      final ParameterChunk parameterChunk = params.get(0);
      final PsiType paramType = parameterChunk.parameter.type;
      if (TypeConversionUtil.isPrimitiveWrapper(aClass.getQualifiedName())) {
        parameterChunk.setField(aClass.findFieldByName("value", false));
        parameterChunk.setGetter(paramType.getCanonicalText() + "Value");
        for (PsiMethod constructor : aClass.getConstructors()) {
          if (constructorIsCompatible(constructor, params)) return constructor;
        }
      }
    }
    final PsiMethod[] constructors = aClass.getConstructors();
    PsiMethod compatibleConstructor = null;
    for (PsiMethod constructor : constructors) {
      if (constructorIsCompatible(constructor, params)) {
        compatibleConstructor = constructor;
        break;
      }
    }
    if (compatibleConstructor == null) {
      return null;
    }
    final PsiParameterList parameterList = compatibleConstructor.getParameterList();
    final PsiParameter[] constructorParams = parameterList.getParameters();
    for (int i = 0; i < constructorParams.length; i++) {
      final PsiParameter param = constructorParams[i];
      final ParameterChunk parameterChunk = params.get(i);

      final PsiField field = findFieldAssigned(param, compatibleConstructor);
      if (field == null) {
        return null;
      }

      parameterChunk.setField(field);

      final PsiMethod getterForField = PropertyUtil.findGetterForField(field);
      if (getterForField != null) {
        parameterChunk.setGetter(getterForField.getName());
      }

      final PsiMethod setterForField = PropertyUtil.findSetterForField(field);
      if (setterForField != null) {
        parameterChunk.setSetter(setterForField.getName());
      }
    }
    return compatibleConstructor;
  }