// Then, run the actual tests under each alternative classloader:

    runTestMethod(NO_ATOMIC_FIELD_UPDATER);
    // TODO(lukes): assert that the logs are full of errors
  }

  /**
   * Runs the corresponding {@link FuturesTest} test method in a new classloader that disallows
   * certain core JDK classes.
   */

 *  The challenge's scheme and realm are now non-null. If you are calling
    `new Challenge(scheme, realm)` you must provide non-null values. These were
    never null in challenges created by OkHttp, but could have been null in
    application code that creates challenges.

 *  New: The `TlsVersion` of a `Handshake` is now non-null. If you are calling
    `Handshake.get()` with a null TLS version, you must instead now provide a

      }
      // It is possible for this to return null because nextEscapeIndex() may
      // (for performance reasons) yield some false positives but it must never
      // give false negatives.
      char[] escaped = escape(cp);
      int nextIndex = index + (Character.isSupplementaryCodePoint(cp) ? 2 : 1);
      if (escaped != null) {
        int charsSkipped = index - unescapedChunkStart;

        field.setAccessible(true);
        final int value = (int) field.get(null);

        assertEquals("EXPECTED_INDEX_COUNT should be 1", 1, value);
    }

    /**
     * Integration test for complete index lifecycle with refactored methods.
     * Tests that createNextIndex and switchIndex work together correctly.
     * Note: Full lifecycle testing is covered by SuggesterTest.test_switchIndex()
     */
    @Test

      if (entry.getKey() == null) {
        tryDrainReferenceQueues();
        return null;
      }
      V value = entry.getValue();
      if (value == null) {
        tryDrainReferenceQueues();
        return null;
      }

      return value;
    }

    /**
     * Performs routine cleanup following a read. Normally cleanup happens during writes, or from

 * NullPointerException} or {@link UnsupportedOperationException} whenever null is passed to a
 * parameter whose declaration or type isn't annotated with an annotation with the simple name
 * {@code Nullable}, {@code CheckForNull}, {@code NullableType}, or {@code NullableDecl}.
 *
 * <p>The tested methods and constructors are invoked -- each time with one parameter being null and
 * the rest not null -- and the test fails if no expected exception is thrown. {@code

     * Reset the {@code activeProxy} field to {@code null}.
     */
    public void flushActiveProxy() {
        this.activeProxy = null;
    }

    /**
     * @return the first active proxy
     */
    public synchronized Proxy getActiveProxy() {
        if (activeProxy == null) {
            java.util.List<Proxy> proxies = getProxies();
            if (proxies != null && !proxies.isEmpty()) {

    check(null !in (interceptors as List<Interceptor?>)) {
      "Null interceptor: $interceptors"
    }
    check(null !in (networkInterceptors as List<Interceptor?>)) {
      "Null network interceptor: $networkInterceptors"
    }

    if (connectionSpecs.none { it.isTls }) {
      check(sslSocketFactoryOrNull == null)
      check(certificateChainCleaner == null)
      check(x509TrustManager == null)

            byte[] buffer = new byte[100];
            // Create "Test\0" in UTF-16LE with proper null terminator
            byte[] testBytes = Strings.getUNIBytes("Test");
            System.arraycopy(testBytes, 0, buffer, 0, 8);
            buffer[8] = 0; // null terminator low byte
            buffer[9] = 0; // null terminator high byte

            String result = testBlock.readString(buffer, 0, buffer.length, 8, true);

     */
    if (!isJava8()) {
      runTestMethod(NO_VAR_HANDLE);
    }

    runTestMethod(NO_UNSAFE);

    runTestMethod(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
    // TODO(lukes): assert that the logs are full of errors
  }

  /**
   * Runs the corresponding {@link AbstractFutureTest} test method in a new classloader that
   * disallows certain core JDK classes.
   */