// Test executing BoostQuery with a BooleanQuery inside
        BooleanQuery.Builder boolBuilder = new BooleanQuery.Builder();
        boolBuilder.add(new TermQuery(new Term("field1", "value1")), BooleanClause.Occur.MUST);
        boolBuilder.add(new TermQuery(new Term("field2", "value2")), BooleanClause.Occur.SHOULD);
        BooleanQuery boolQuery = boolBuilder.build();
        BoostQuery boostQuery = new BoostQuery(boolQuery, 2.0f);

// JSON utilities with proper escaping
String escaped = JsonUtil.escape("Hello \"World\" with special chars");
String unescaped = JsonUtil.unescape(escaped);

// Text tokenization
Tokenizer tokenizer = new Tokenizer("field1,field2,field3", ",");
while (tokenizer.hasMoreTokens()) {
    String token = tokenizer.nextToken();
    // Process each token
}

// Decimal formatting

import jakarta.annotation.PostConstruct;

/**
 * Configuration class for query field mappings in the Fess search engine.
 * This class manages field configurations for various query operations including
 * response fields, search fields, facet fields, sort fields, and highlighting.
 * It initializes field mappings from the FessConfig and provides methods to
 * query field properties and capabilities.
 */
public class QueryFieldConfig {

    /**

# Field name for document ID in the index.
index.field.doc_id=doc_id
# Field name for internal ID in the index.
index.field.id=_id
# Field name for version in the index.
index.field.version=_version
# Field name for sequence number in the index.
index.field.seq_no=_seq_no
# Field name for primary term in the index.
index.field.primary_term=_primary_term
# Field name for language in the index.
index.field.lang=lang

        Field[] fields = FessLabels.class.getDeclaredFields();
        Pattern labelPattern = Pattern.compile("^LABELS_[A-Za-z0-9_]+$");

        for (Field field : fields) {
            if (Modifier.isStatic(field.getModifiers()) && Modifier.isFinal(field.getModifiers()) && Modifier.isPublic(field.getModifiers())
                    && field.getType() == String.class && !field.getName().equals("serialVersionUID")) {

        Field[] fields = FessHtmlPath.class.getDeclaredFields();
        for (Field field : fields) {
            int modifiers = field.getModifiers();
            if (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers)) {
                if (field.getType().equals(HtmlNext.class)) {
                    HtmlNext htmlNext = (HtmlNext) field.get(null);

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);
        }
        return sourceMap;
    }

    @Override

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

        assertEquals(3, fields.length);
        assertEquals("expires", fields[0]);
        assertEquals("start_time", fields[1]);
        assertEquals("end_time", fields[2]);
    }

    public void test_indexAdminIntegerFields() {
        String[] fields = fessConfig.getIndexAdminIntegerFields().split(",");
        assertEquals(1, fields.length);
        assertEquals("boost", fields[0]);
    }

        try {
            // Try to access the field, handling potential security restrictions
            Field field = DBFluteSystem.class.getDeclaredField("finalTimeZoneProvider");
            field.setAccessible(true);
            return (DfFinalTimeZoneProvider) field.get(null);
        } catch (NoSuchFieldException e) {
            // Field might not exist in this version, return null
            return null;