/**
     * The name of the field.
     */
    private final String fieldName;

    /**
     * Creates a {@link FieldNotFoundRuntimeException}.
     *
     * @param targetClass
     *            Target class
     * @param fieldName
     *            Field name
     */
    public FieldNotFoundRuntimeException(final Class<?> targetClass, final String fieldName) {
        super("ECL0070", asArray(targetClass.getName(), fieldName));

        // Test various complex field names
        String[] fieldNames = { "simple_field", "field-with-dashes", "field.with.dots", "field_with_underscores", "fieldWithCamelCase",
                "field with spaces", "field@with#special!chars", "フィールド名", "字段名称", "필드명" };

        for (String fieldName : fieldNames) {
            String encoded = BaseEncoding.base64().encode(fieldName.getBytes(StandardCharsets.UTF_8));

            }
        }
        throw new NoSuchFieldException(fieldName);
    }

    private static void setPrivateField(Object target, String fieldName, Object value) throws Exception {
        Class<?> clazz = target.getClass();
        while (clazz != null) {
            try {
                Field f = clazz.getDeclaredField(fieldName);
                f.setAccessible(true);
                f.set(target, value);

    /**
     * The name of the field.
     */
    private final String fieldName;

    /**
     * Creates a {@link FieldNotStaticRuntimeException}.
     *
     * @param targetClass
     *            Target class
     * @param fieldName
     *            Field name
     */
    public FieldNotStaticRuntimeException(final Class<?> targetClass, final String fieldName) {
        super("ECL0099", asArray(targetClass.getName(), fieldName));

        super("ECL0070", asArray(targetClass.getName(), fieldName), cause);
        this.targetClass = targetClass;
        this.fieldName = fieldName;
    }

    /**
     * Returns the target class.
     *
     * @return Target class
     */
    public Class<?> getTargetClass() {
        return targetClass;
    }

    /**

public class StandardSystemPropertyTest extends TestCase {

  public void testGetKeyMatchesString() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      String fieldName = property.name();
      String expected = Ascii.toLowerCase(fieldName).replaceAll("_", ".");
      assertEquals(expected, property.key());
    }
  }

  public void testGetValue() {

     *
     * @param fieldName the name of the field to get configuration for
     * @return an OptionalThing containing the Config if the field exists and has a non-blank value,
     *         otherwise an empty OptionalThing
     */
    public OptionalThing<Config> getConfig(final String fieldName) {
        final String value = params.get(fieldName);
        if (StringUtil.isNotBlank(value)) {

    /** The {@link BeanDesc} of the class that owns this field */
    protected final BeanDesc beanDesc;

    /** The field */
    protected final Field field;

    /** The field name */
    protected final String fieldName;

    /** The type of the field */
    protected final Class<?> fieldType;

    /** Information about the parameterized type */
    protected final ParameterizedClassDesc parameterizedClassDesc;

    /**

     */
    private Object getFieldValue(Object obj, String fieldName) {
        try {
            Field field = SmbComWrite.class.getDeclaredField(fieldName);
            field.setAccessible(true);
            return field.get(obj);
        } catch (Exception e) {
            throw new RuntimeException("Failed to access field " + fieldName, e);
        }
    }

    /**

     * Returns whether the {@link FieldDesc} exists.
     *
     * @param fieldName
     *            The field name. Must not be {@literal null} or empty string
     * @return Whether the {@link FieldDesc} exists
     */
    boolean hasFieldDesc(String fieldName);

    /**
     * Returns the {@link FieldDesc}.
     *
     * @param fieldName
     *            The field name. Must not be {@literal null} or empty string