}
			if len(old) == 0 && n != 0 {
				out.Write(new)
			}
			return out.Bytes()
		}
		if simple, replace := differentImpl(in, old, new, n), Replace(in, old, new, n); !slices.Equal(simple, replace) {
			t.Errorf("The two implementations do not match %q != %q for Replace(%q, %q, %q, %d)", simple, replace, in, old, new, n)
		}
	})
}

func BenchmarkReplace(b *testing.B) {
	for _, tt := range ReplaceTests {

  @Override
  public boolean replace(K key, @Nullable V oldValue, V newValue) {
    checkNotNull(key);
    checkNotNull(newValue);
    if (oldValue == null) {
      return false;
    }
    int hash = hash(key);
    return segmentFor(hash).replace(key, hash, oldValue, newValue);
  }

  @CanIgnoreReturnValue
  @Override
  public @Nullable V replace(K key, V value) {
    checkNotNull(key);

    assertThrows(UnsupportedOperationException.class, () -> unmod.putIfAbsent(3, "three"));
    assertThrows(UnsupportedOperationException.class, () -> unmod.replace(3, "three", "four"));
    assertThrows(UnsupportedOperationException.class, () -> unmod.replace(3, "four"));
    assertThrows(
        UnsupportedOperationException.class, () -> unmod.computeIfAbsent(3, k -> k + "three"));

      }
    }

    @Override
    public boolean replace(K key, V oldValue, V newValue) {
      synchronized (mutex) {
        return delegate().replace(key, oldValue, newValue);
      }
    }

    @Override
    public @Nullable V replace(K key, V value) {
      synchronized (mutex) {
        return delegate().replace(key, value);
      }
    }

    @Override

    }

    /**
     * Add or replace an artifact. This method is now deprecated. Use the @{MavenProjectHelper} to attach artifacts to a
     * project. In spite of the 'throws' declaration on this API, this method has never thrown an exception since Maven
     * 3.0.x. Historically, it logged and ignored a second addition of the same g/a/v/c/t. Now it replaces the file for

            // Use replace(key, null, value) to make sure the *main* session, i.e. the one used
            // to load the projects, is stored. This is to avoid the session being overwritten
            // if a plugin uses the ProjectBuilder.
            this.session
                    .getData()

			panic(fmt.Sprintf("header: %x != object id: %x", x.versions[idx].header.VersionID, dst.getVersionID()))
		}
	}
	return &dst, err
}

// setIdx will replace a version at a given index.
// Note that versions may become re-sorted if modtime changes.
func (x *xlMetaV2) setIdx(idx int, ver xlMetaV2Version) (err error) {
	if idx < 0 || idx >= len(x.versions) {

                } else if (!sysFile.isFile()) {
                    String msg = "refers to a non-existing file " + sysFile.getAbsolutePath();
                    systemPath = systemPath.replace('/', File.separatorChar).replace('\\', File.separatorChar);
                    String jdkHome =
                            request.getSystemProperties().getProperty("java.home", EMPTY) + File.separator + "..";

    HTTP requests, you can use this interface to replace the real `OkHttpClient`
    with your own mocks or fakes.

    The interface will also let you use OkHttp's API with another HTTP client's
    implementation. This is useful in sandboxed environments like Google App
    Engine.

 *  **OkHttp now does cookies.** We've replaced `java.net.CookieHandler` with

    return try {
      URI(uri)
    } catch (e: URISyntaxException) {
      // Unlikely edge case: the URI has a forbidden character in the fragment. Strip it & retry.
      try {
        val stripped = uri.replace(Regex("[\\u0000-\\u001F\\u007F-\\u009F\\p{javaWhitespace}]"), "")
        URI.create(stripped)
      } catch (e1: Exception) {
        throw RuntimeException(e) // Unexpected!
      }
    }
  }

  /**