if (matches(c)) {
        if (c == replacement && (i == len - 1 || !matches(sequence.charAt(i + 1)))) {
          // a no-op replacement
          i++;
        } else {
          StringBuilder builder = new StringBuilder(len).append(sequence, 0, i).append(replacement);
          return finishCollapseFrom(sequence, i + 1, len, replacement, builder, true);
        }
      }
    }

    public void setReplacement_Equal(String replacement) {
        setReplacement_Term(replacement, null);
    }

    public void setReplacement_Equal(String replacement, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setReplacement_Term(replacement, opLambda);
    }

    public void setReplacement_Term(String replacement) {
        setReplacement_Term(replacement, null);
    }

    public void setReplacement_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda) {
        setReplacement_Terms("replacement", opLambda, null);
    }

    public void setReplacement_Terms(ConditionOptionCall<TermsAggregationBuilder> opLambda, OperatorCall<BsPathMappingCA> aggsLambda) {
        setReplacement_Terms("replacement", opLambda, aggsLambda);
    }

     * @param convertUrlMap the map of regex patterns to replacement strings
     */
    public void setConvertUrlMap(final Map<String, String> convertUrlMap) {
        this.convertUrlMap.putAll(convertUrlMap);
    }

    /**
     * Adds a URL conversion rule.
     *
     * @param regex the regular expression pattern to match
     * @param replacement the replacement string
     */

 * API</h2>
 *
 * <p>The successor to Guava's caching API is <a
 * href="https://github.com/ben-manes/caffeine/wiki">Caffeine</a>. Its API is designed to make it a
 * nearly drop-in replacement. Note that it is not available for Android or GWT/J2CL and that it may
 * have <a href="https://github.com/ben-manes/caffeine/wiki/Guava">different (usually better)

		{"InvalidASCII", []byte("foo\xffbar")},
		{"InvalidNonASCII", []byte("日本語\xff日本語")},
	}
	replacement := []byte("\uFFFD")
	b.ResetTimer()
	for _, test := range tests {
		b.Run(test.name, func(b *testing.B) {
			for i := 0; i < b.N; i++ {
				ToValidUTF8(test.input, replacement)
			}
		})
	}
}

func makeBenchInputHard() []byte {
	tokens := [...]string{

  }

  @Test
  fun fragmentPercentEncodedPartialCodePoint() {
    val url = parse("http://host/#%80")
    assertThat(url.toString()).isEqualTo("http://host/#%80")
    // Unicode replacement character.
    assertThat(url.fragment).isEqualTo("\ufffd")
    assertThat(url.encodedFragment).isEqualTo("%80")
  }

  @Test
  fun relativePath() {
    val base = parse("http://host/a/b/c")

        return iterator.next();
      }
    };
  }

  /**
   * Simply returns its argument.
   *
   * @deprecated no need to use this
   * @since 10.0
   */
  @InlineMe(
      replacement = "checkNotNull(iterator)",
      staticImports = "com.google.common.base.Preconditions.checkNotNull")
  @Deprecated
  public static <T extends @Nullable Object> UnmodifiableIterator<T> unmodifiableIterator(

    }
    return new UnmodifiableMultimap<>(delegate);
  }

  /**
   * Simply returns its argument.
   *
   * @deprecated no need to use this
   * @since 10.0
   */
  @InlineMe(
      replacement = "checkNotNull(delegate)",
      staticImports = "com.google.common.base.Preconditions.checkNotNull")
  @Deprecated
  public static <K, V> Multimap<K, V> unmodifiableMultimap(ImmutableMultimap<K, V> delegate) {

    }
    return new UnmodifiableMultimap<>(delegate);
  }

  /**
   * Simply returns its argument.
   *
   * @deprecated no need to use this
   * @since 10.0
   */
  @InlineMe(
      replacement = "checkNotNull(delegate)",
      staticImports = "com.google.common.base.Preconditions.checkNotNull")
  @Deprecated
  public static <K, V> Multimap<K, V> unmodifiableMultimap(ImmutableMultimap<K, V> delegate) {