}

    public void test_complex_field_names() {
        // 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 text = "test";
        String field = "content";

        List<String> readings = converter.convert(text, field);

        assertNotNull(readings);
        assertEquals(1, readings.size());
        assertEquals("TEST", readings.get(0));
    }

    @Test
    public void testConvertWithNullField() throws IOException {
        // Test convert with null field
        converter.init();

func (z *AccElem) DecodeMsg(dc *msgp.Reader) (err error) {
	var field []byte
	_ = field
	var zb0001 uint32
	zb0001, err = dc.ReadMapHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	for zb0001 > 0 {
		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "Total":
			z.Total, err = dc.ReadInt64()

     * @param name The name of the field.
     * @param value The value of the field.
     * @return The result data body.
     */
    protected String getResultDataBody(final String name, final String value) {
        // TODO: Support other XML footer types
        // TODO: Support other field types and trimming options

    }

    @Override
    public Field getField() {
        return field;
    }

    /**
     * Sets the public field recognized as a property.
     *
     * @param field
     *            The public field recognized as a property.
     */
    public void setField(final Field field) {
        this.field = field;
        if (field != null && ModifierUtil.isPublic(field)) {
            readable = true;

import java.lang.reflect.Field;

/**
 * Signals that a field could not be made accessible.
 */
public class BeanFieldSetAccessibleFailureException extends ClRuntimeException {
    private static final long serialVersionUID = 1L;

    /**
     * The target class.
     */
    protected final Class<?> targetClass;

    /**
     * The target field.
     */

        final StringBuilder buf = new StringBuilder(100);
        buf.append(form.q);
        if (!form.fields.isEmpty() && form.fields.containsKey(LABEL_FIELD)) {
            final String[] values = form.fields.get(LABEL_FIELD);
            final List<String> labelList = new ArrayList<>();
            if (values != null) {
                Collections.addAll(labelList, values);

            }
            if (FieldUtil.isPublicField(field)) {
                final PropertyDescImpl pd = new PropertyDescImpl(field.getName(), field.getType(), null, null, field, this);
                propertyDescCache.put(fname, pd);
            }
        }
    }

    private void setFieldAccessible(Field field) {
        if (isExceptPrivateAccessible(field)) {
            return;
        }
        try {

        /**
         * Splits a field name into its components.
         *
         * @param defaultField the default field name
         * @param field the field name to split
         * @return a Pair containing the field name and extension key
         */
        protected Pair<String, String> splitField(final String defaultField, final String field) {
            final int indexOf = field.indexOf(':');
            if (indexOf < 0) {

      }
    }
  ],
  "properties": {
    "@timestamp": {
      "type": "date",
      "format": "epoch_millis"
    },
    "docFreq": {
      "type": "long"
    },
    "fields": {
      "type": "keyword"
    },
    "kinds": {
      "type": "keyword"
    },
    "queryFreq": {
      "type": "long"
    },
    "roles": {
      "type": "keyword"
    },
    "languages": {