// For direct buffers, we rely on GC
        // Could implement a more sophisticated buffer pool here
    }

    /**
     * Clean up all pooled regions
     *
     * This method should be called when shutting down to
     * release all resources.
     */
    public void cleanup() {
        // Clean up all pooled regions
        RdmaMemoryRegion region;

        void testUnicodeStringBasicFields() {
            // Given: A unicode string
            rpc.unicode_string unicodeString = new rpc.unicode_string();

            // When: Setting values
            unicodeString.length = (short) 10;
            unicodeString.maximum_length = (short) 20;
            unicodeString.buffer = new short[] { 65, 66, 67 }; // A, B, C

        // Verify
        assertNull(result);
    }

    public void test_getResponse_withUnsetType() {
        // Execute - requesting type without setting response
        ActionResponse result = authenticator.getResponse(SsoResponseType.METADATA);

        // Verify
        assertNull(result);
    }

    // Test logout method

    }
    safeChars += "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    // Avoid ambiguous parameters. Safe characters are never modified so if
    // space is a safe character then setting plusForSpace is meaningless.
    if (plusForSpace && safeChars.contains(" ")) {
      throw new IllegalArgumentException(
          "plusForSpace cannot be specified when space is a 'safe' character");
    }

        return new ProjectBuilderRequestBuilder();
    }

    /**
     * Builder for creating ProjectBuilderRequest instances.
     * This builder provides a fluent API for setting the various properties of a request.
     */
    @NotThreadSafe
    class ProjectBuilderRequestBuilder {
        Session session;
        RequestTrace trace;
        Path path;
        Source source;

`--sftp=trusted-user-ca-key=...` specifies a file containing public key of certificate authority that is trusted
to sign user certificates for authentication.

Implementation is identical with "TrustedUserCAKeys" setting in OpenSSH server with exception that only one CA
key can be defined.

If a certificate is presented for authentication and has its signing CA key is in this file, then it may be

        @Test
        @DisplayName("Should ignore extended security setting")
        void testSetExtendedSecurity() {
            testMessage.setExtendedSecurity(true);
            testMessage.setExtendedSecurity(false);
            // Method is empty, just ensure no exception
        }

        @Test
        @DisplayName("Should ignore UID setting")
        void testSetUid() {
            testMessage.setUid(123);

    return CollectCollectors.toImmutableBiMap(keyFunction, valueFunction);
  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {
    return (ImmutableBiMap<K, V>) RegularImmutableBiMap.EMPTY;
  }

   */
  private static int getAlphaIndex(char c) {
    // Fold upper-case ASCII to lower-case and make zero-indexed and unsigned (by casting to char).
    return (char) ((c | CASE_MASK) - 'a');
  }

      if (!executed) {
        runnables = new RunnableExecutorPair(runnable, executor, runnables);
        return;
      }
    }
    // Execute the runnable immediately. Because of scheduling this may end up getting called before
    // some of the previously added runnables, but we're OK with that. If we want to change the
    // contract to guarantee ordering among runnables we'd have to modify the logic here to allow
    // it.