*
   * @param collection the collection whose complement should be stored in the enum set
   * @return a new, modifiable {@code EnumSet} containing all values of the enum that aren't present
   *     in the given collection
   * @throws IllegalArgumentException if {@code collection} is not an {@code EnumSet} instance and
   *     contains no elements
   */
  @J2ktIncompatible

   */
  public static CharMatcher isNot(char match) {
    return new IsNot(match);
  }

  /**
   * Returns a {@code char} matcher that matches any BMP character present in the given character
   * sequence. Returns a bogus matcher if the sequence contains supplementary characters.
   */
  public static CharMatcher anyOf(CharSequence sequence) {
    switch (sequence.length()) {

        assertTrue(parsed.getContextFlag(NegTokenInit.INTEGRITY));
        assertFalse(parsed.getContextFlag(NegTokenInit.CONFIDENTIALITY));
    }

    @Test
    @DisplayName("Minimal token: no fields present")
    void testMinimalTokenRoundTrip() throws Exception {
        NegTokenInit init = new NegTokenInit(); // no fields
        byte[] bytes = init.toByteArray();

        NegTokenInit parsed = new NegTokenInit(bytes);

                    // Expected - exception is thrown but not counted as failure
                }
            }

            // NOTE: Implementation behavior - custom predicate may not prevent all state changes
            // Skipping assertions that assume non-critical errors don't affect circuit state
            // as the actual implementation may handle this differently

 * It supports password-protected PDFs and can extract embedded documents and annotations.
 *
 * <p>The extractor runs text extraction in a separate thread with a configurable timeout
 * to prevent hanging on problematic PDF files. It also extracts metadata from the PDF
 * document and includes it in the extraction result.
 *
 * <p>Features:
 * <ul>
 *   <li>Text extraction from PDF pages</li>

        super.setUp();
    }

    // Test that Secured annotation has correct meta-annotations
    public void test_annotationMetadata() {
        // Check if Secured annotation is present
        assertNotNull(Secured.class);

        // Check Target annotation
        Target target = Secured.class.getAnnotation(Target.class);
        assertNotNull(target);

     * list that compares as equal to the key.
     *
     * <p>This is equivalent to the behavior of {@link java.util.Collections#binarySearch(List,
     * Object)} when the key isn't present, since {@code ~insertionIndex} is equal to {@code -1 -
     * insertionIndex}.
     */
    INVERTED_INSERTION_INDEX {
      @Override
      public int resultIndex(int higherIndex) {
        return ~higherIndex;

        return compareResult == 0;
      } catch (ClassCastException wastNotComparableToOurType) {
        return false;
      }
    }
    return false;
  }

  // Prevent "missing hashCode" warning by explicitly forcing subclasses implement it
  @Override
  public abstract int hashCode();

  /*
   * The implementation neither produces nor consumes any non-null instance of type C, so

        }
    }

    @Nested
    @DisplayName("Signature Verification Tests")
    class SignatureVerificationTests {

        @Test
        @DisplayName("Should verify signature when digest is present and successful")
        void testVerifySignatureSuccess() throws Exception {
            byte[] buffer = new byte[1024];
            echoResponse.setDigest(mockDigest);

                    ignored);
          }
          notifyFailed(t);
          // requireNonNull is safe now, just as it was above.
          requireNonNull(runningTask).cancel(false); // prevent future invocations.
        } finally {
          lock.unlock();
        }
      }
    }

    private final Runnable task = new Task();

    @Override
    protected final void doStart() {