// Test multiple replacements in same string
        System.setProperty("var1", "value1");
        System.setProperty("var2", "value2");

        String value = "${var1}-${var2}";
        assertEquals("value1-value2", ResourceUtil.resolve(value));

        // Test nested-like patterns (but not actual nesting)
        value = "${var1${var2}}"; // The ${var2} part gets replaced first

   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

    @Override
    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {

   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

    @Override
    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {

      maxSize = maxSize,
      taskRunner = taskRunner,
    )

  // read and write statistics, all guarded by 'this'.
  internal var writeSuccessCount = 0
  internal var writeAbortCount = 0
  private var networkCount = 0
  private var hitCount = 0
  private var requestCount = 0

  val isClosed: Boolean
    get() = cache.isClosed()

  internal fun get(request: Request): Response? {

        File libDir = new File(tempDir, "lib");
        assertTrue(libDir.mkdir());

        // Create test jar files
        File jar1 = new File(libDir, "test1.jar");
        File jar2 = new File(libDir, "test2.JAR");
        File notJar = new File(libDir, "test.txt");
        assertTrue(jar1.createNewFile());
        assertTrue(jar2.createNewFile());
        assertTrue(notJar.createNewFile());

          println("Server: ${response.header("Server")}")
          println("Date: ${response.header("Date")}")
          println("Vary: ${response.headers("Vary")}")
        }
      }
    ```

=== ":material-language-java: Java"
    ```java
      private final OkHttpClient client = new OkHttpClient();

      public void run() throws Exception {

  private val atomicRequestCount = AtomicInteger()

  private var serverSocketFactory_: ServerSocketFactory? = null
  private var serverSocket: ServerSocket? = null

  /** Non-null after [start]. */
  private var socketAddress_: InetSocketAddress? = null

  private var sslSocketFactory: SSLSocketFactory? = null
  private var clientAuth = CLIENT_AUTH_NONE

  private var closed: Boolean = false

  /**

		<packaging.fess.conf.dir>/etc/fess</packaging.fess.conf.dir>
		<packaging.fess.var.dir>/var/lib/fess</packaging.fess.var.dir>
		<packaging.fess.lib.dir>${packaging.fess.home.dir}/lib</packaging.fess.lib.dir>
		<packaging.fess.log.dir>/var/log/fess</packaging.fess.log.dir>
		<packaging.fess.temp.dir>/var/tmp/fess</packaging.fess.temp.dir>

    cacheHit
      .cacheResponse()
      .assertCode(200)
      .assertHeader("Donut", "a")
      .assertHeader("ETag", "v1")
      .assertRequestUrl(server.url("/"))
      .assertRequestHeader("Accept-Language") // No Vary on Accept-Language.
      .assertRequestHeader("Accept-Charset", "UTF-8") // Because of Vary on Accept-Charset.

    var method: String? = recordedRequest.method
    var path: String? = recordedRequest.path
    var headers: Headers = recordedRequest.headers
    val header: String? = recordedRequest.getHeader("")
    var chunkSizes: List<Int>? = recordedRequest.chunkSizes
    var bodySize: Long = recordedRequest.bodySize
    var body: Buffer = recordedRequest.body
    var utf8Body: String = recordedRequest.body.readUtf8()