}

    private void shutdownCommonsHttpClient() { // from Tomcat7ConfigServlet (old class)
        try {
            final Class<?> clazz = Class.forName("org.apache.commons.httpclient.MultiThreadedHttpConnectionManager");
            final Method method = clazz.getMethod("shutdownAll", (Class<?>[]) null);
            method.invoke(null, (Object[]) null);
        } catch (final ClassNotFoundException e) {
            // ignore

        // Given
        Class<?> clazz = SmbComTreeDisconnect.class;

        // When & Then - verify methods are declared in this class (overridden)
        Method writeParameterWords = clazz.getDeclaredMethod("writeParameterWordsWireFormat", byte[].class, int.class);
        assertNotNull(writeParameterWords);

        Method writeBytes = clazz.getDeclaredMethod("writeBytesWireFormat", byte[].class, int.class);

    for (Class<?> clazz : getClassesBetween(descendant, ancestor)) {
      methods.addAll(getPublicStaticMethods(clazz));
    }
    return methods;
  }

  private static Set<MethodSignature> getPublicStaticMethods(Class<?> clazz) {
    Set<MethodSignature> publicStaticMethods = new HashSet<>();

    for (Method method : clazz.getDeclaredMethods()) {

    for (Class<?> clazz : getClassesBetween(descendant, ancestor)) {
      methods.addAll(getPublicStaticMethods(clazz));
    }
    return methods;
  }

  private static Set<MethodSignature> getPublicStaticMethods(Class<?> clazz) {
    Set<MethodSignature> publicStaticMethods = new HashSet<>();

    for (Method method : clazz.getDeclaredMethods()) {

         * Determines if this converter can handle the specified class.
         *
         * @param clazz The class to check.
         * @return true if the class is Date.class, false otherwise.
         */
        @Override
        public boolean isTarget(@SuppressWarnings("rawtypes") final Class clazz) {
            return clazz == Date.class;
        }

    }

    /**

                    final Class<?> clazz = writeMethod.getDeclaringClass();
                    final Class<?> valueClass = convertedValue == null ? null : convertedValue.getClass();
                    final Class<?> targetClass = target == null ? null : target.getClass();
                    throw new ClIllegalArgumentException("target", "ECL0098",

        }
    }

    private static ClassMap getClassMap(Class<?> clazz) {
        Reference<ClassMap> ref = CLASS_MAPS.get(clazz);
        ClassMap classMap = ref != null ? ref.get() : null;

        if (classMap == null) {
            classMap = new ClassMap(clazz);

            CLASS_MAPS.put(clazz, new WeakReference<>(classMap));
        }

        return classMap;
    }

        field.set(obj, value);
    }

    private Field getField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
        while (clazz != null) {
            try {
                return clazz.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                clazz = clazz.getSuperclass();
            }
        }

     */
    public static void registerDriver(final String driverClassName) {
        assertArgumentNotEmpty("driverClassName", driverClassName);

        final Class<Driver> clazz = ClassUtil.forName(driverClassName);
        registerDriver(clazz);
    }

    /**
     * Registers a JDBC driver.
     *
     * @param driverClass
     *            The class of the JDBC driver to register. Must not be {@literal null}.
     */

        Class<?> clazz = obj.getClass();
        while (clazz != null) {
            try {
                java.lang.reflect.Field field = clazz.getDeclaredField(fieldName);
                field.setAccessible(true);
                return field.get(obj);
            } catch (NoSuchFieldException e) {
                // Try parent class
                clazz = clazz.getSuperclass();
            }
        }