return buf.toString();
        }

        /**
         * URL-encodes text for use in text fragment parameters.
         *
         * @param text the text to encode
         * @return the URL-encoded text
         */
        private String encodeToString(final String text) {
            return URLEncoder.encode(text, Constants.CHARSET_UTF_8);
        }
    }

        queryContext.addHighlightedQuery("text");
        // Should not throw exception
    }

    // Test addHighlightedQuery with valid set
    public void test_addHighlightedQuery_validSet() {
        queryContext = new QueryContext("test", true);
        queryContext.addHighlightedQuery("text1");
        queryContext.addHighlightedQuery("text2");
        queryContext.addHighlightedQuery("text1"); // Duplicate

- **Type Safe** - Comprehensive use of generics and modern Java type system features

### Additional Components
- **Text Processing** (`org.codelibs.core.text`) - JSON utilities, tokenization, decimal formatting, and text manipulation
- **Logging Abstraction** (`org.codelibs.core.log`) - Flexible logging system supporting JCL (Jakarta Commons Logging) and JUL (Java Util Logging)

      <artifactId>guava-testlib</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>com.google.guava</groupId>
      <artifactId>guava-tests</artifactId>
      <version>${project.version}</version>
      <classifier>tests</classifier>
      <scope>test</scope>
    </dependency>
    <dependency>

        .addEqualityGroup(
            MediaType.create("text", "plain"),
            MediaType.create("TEXT", "PLAIN"),
            MediaType.parse("text/plain"),
            MediaType.parse("TEXT/PLAIN"),
            MediaType.parse("text /plain"),
            MediaType.parse("TEXT/ plain"),
            MediaType.parse("text / plain"),
            MediaType.create("text", "plain").withParameter("a", "1").withoutParameters())

  // the text processing methods below.

  public void testWhitespaceBreakingWhitespaceSubset() throws Exception {
    for (int c = 0; c <= Character.MAX_VALUE; c++) {
      if (breakingWhitespace().matches((char) c)) {
        assertTrue(Integer.toHexString(c), whitespace().matches((char) c));
      }
    }
  }

  // the text processing methods below.

  public void testWhitespaceBreakingWhitespaceSubset() throws Exception {
    for (int c = 0; c <= Character.MAX_VALUE; c++) {
      if (breakingWhitespace().matches((char) c)) {
        assertTrue(Integer.toHexString(c), whitespace().matches((char) c));
      }
    }
  }

  public void testLimitExtraSeparators() {
    String text = "a,,,b,,c,d";
    Iterable<String> items = COMMA_SPLITTER.limit(2).split(text);
    assertThat(items).containsExactly("a", ",,b,,c,d").inOrder();
  }

  public void testLimitExtraSeparatorsOmitEmpty() {
    String text = "a,,,b,,c,d";
    Iterable<String> items = COMMA_SPLITTER.limit(2).omitEmptyStrings().split(text);

        final String text = prefixQuery.getPrefix().text();

        if (Constants.DEFAULT_FIELD.equals(field)) {
            context.addFieldLog(field, text + "*");
            context.addHighlightedQuery(text);
            return buildDefaultQueryBuilder(fessConfig, context,
                    (f, b) -> QueryBuilders.matchPhrasePrefixQuery(f, toLowercaseWildcard(text))
                            .boost(b * boost)

      .assertLogEqual("Content-Type: text/plain; charset=utf-8")
      .assertLogEqual("--> END POST")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Length: 0")
      .assertLogEqual("<-- END HTTP")
      .assertNoMoreLogs()
    networkLogs
      .assertLogEqual("--> POST $url http/1.1")
      .assertLogEqual("Content-Type: text/plain; charset=utf-8")