}
    }

    /**
     * Get field values.
     * @param document Document
     * @param fieldName Field name
     * @return Field values
     */
    protected String[] getFieldValues(final Map<String, Object> document, final String fieldName) {
        final Object value = document.get(fieldName);
        if (value instanceof String) {
            return new String[] { value.toString() };
        }

private
fun getSinceJavaFieldVisitorFor(field: JApiField) =
    object : SinceVisitor() {

        override fun visit(declaration: FieldDeclaration, arg: Unit?): SinceTagStatus? =
            declaration.takeIf { matchesName(it.fieldName, field.name) }?.getSince()?.let { SinceTagStatus.Present(it) }

        override fun visit(declaration: EnumConstantDeclaration, arg: Unit?): SinceTagStatus? =
            declaration.getSinceIfMatchesName(field.name)
    }

     * Searches the class hierarchy to find the field.
     */
    private Object getField(Object obj, String fieldName) throws Exception {
        Class<?> clazz = obj.getClass();
        while (clazz != null) {
            try {
                java.lang.reflect.Field field = clazz.getDeclaredField(fieldName);
                field.setAccessible(true);
                return field.get(obj);

     */
    private void setPrivateField(Object obj, String fieldName, Object value) throws Exception {
        Field field = obj.getClass().getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(obj, value);
    }

    /**
     * Helper method to get private field value using reflection
     */
    private Object getPrivateField(Object obj, String fieldName) throws Exception {

        while (fields.hasNext()) {
            final Map.Entry<String, JsonNode> field = fields.next();
            final String fieldName = field.getKey();
            final JsonNode fieldValue = field.getValue();

            final String currentKey = buildKey(parentKey, fieldName);
            extractContent(fieldValue, currentKey, textBuilder, metadataMap, depth + 1);
        }
    }

    /**

    </ruleset-ref>
    <ruleset-ref path='rulesets/naming.xml'>
        <rule-config name='ClassName'>
            <property name='regex' value='^[A-Z][\$a-zA-Z0-9]*$'/>
        </rule-config>
        <rule-config name='FieldName'>
            <property name='finalRegex' value='^[a-z][a-zA-Z0-9]*$'/>
            <property name='staticFinalRegex' value='^logger$|^[A-Z][A-Z_0-9]*$|^serialVersionUID$'/>
        </rule-config>

    </ruleset-ref>
    <ruleset-ref path='rulesets/naming.xml'>
        <rule-config name='ClassName'>
            <property name='regex' value='^[A-Z][\$a-zA-Z0-9]*$'/>
        </rule-config>
        <rule-config name='FieldName'>
            <property name='finalRegex' value='^[a-z][a-zA-Z0-9]*$'/>
            <property name='staticFinalRegex' value='^logger$|^[A-Z][A-Z_0-9]*$|^serialVersionUID$'/>
        </rule-config>

		}
		if field.Unique != unique {
			t.Fatalf("%v: %q column %q unique should be %v but got %v", utils.FileWithLineNum(), stmt.Schema.Table, fieldName, unique, field.Unique)
		}
		if field.UniqueIndex != uniqueIndex {
			t.Fatalf("%v: %q column %q uniqueIndex should be %v but got %v", utils.FileWithLineNum(), stmt.Schema, fieldName, uniqueIndex, field.UniqueIndex)
		}
	}

	type ( // not unique

    private Field getSuperclassField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
        while (clazz != null) {
            try {
                return clazz.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                clazz = clazz.getSuperclass();
            }
        }
        throw new NoSuchFieldException("Field " + fieldName + " not found");
    }

    private Field getSuperclassField(Class<?> clazz, String fieldName) throws NoSuchFieldException {
        while (clazz != null) {
            try {
                return clazz.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                clazz = clazz.getSuperclass();
            }
        }
        throw new NoSuchFieldException("Field " + fieldName + " not found");
    }