/**
   * Returns a new {@code MutableClassToInstanceMap} instance backed by a given empty {@code
   * backingMap}. The caller surrenders control of the backing map, and thus should not allow any
   * direct references to it to remain accessible.
   */
  public static <B extends @Nullable Object> MutableClassToInstanceMap<B> create(
      Map<Class<? extends @NonNull B>, B> backingMap) {
    return new MutableClassToInstanceMap<>(backingMap);
  }

        authenticator.secureWipePassword();
        authenticator.secureWipePassword();
        authenticator.secureWipePassword();

        assertNull(authenticator.getPassword(), "Password should remain null after multiple wipes");
    }

    assertThat(forJavaName(CipherSuite.TLS_KRB5_WITH_DES_CBC_MD5.javaName))
      .isSameInstanceAs(
        CipherSuite.TLS_KRB5_WITH_DES_CBC_MD5,
      )
  }

  /**
   * Tests that interned CipherSuite instances remain the case across garbage collections, even if
   * the String used to construct them is no longer strongly referenced outside of the CipherSuite.
   */
  @Test
  fun instancesAreInterned_survivesGarbageCollection() {

     * identifier are added, then the value of the replace argument determines the behaviour.
     *
     * If replace is false, then any existing repository with the same ID will remain in use. If replace
     * is true, the new repository replaces the original.
     *
     * @param repository the repository to add to the internal search chain, must not be {@code null}

        byte[] originalRequestBuffer = negotiation.getRequestRaw();
        byte[] originalResponseBuffer = negotiation.getResponseRaw();

        // Verify fields remain unchanged on subsequent calls
        assertSame(originalRequest, negotiation.getRequest());
        assertSame(originalResponse, negotiation.getResponse());
        assertSame(originalRequestBuffer, negotiation.getRequestRaw());

        doc.put("content", "コンテンツ");

        languageHelper.updateDocument(doc);

        assertEquals("ja", doc.get("lang"));
        assertEquals("既存のタイトル", doc.get("title_ja")); // Should remain unchanged
        assertEquals("コンテンツ", doc.get("content_ja"));
    }

    @Test
    public void test_detectLanguage_blank() {
        assertNull(languageHelper.detectLanguage(null));

   * If the new value is loaded successfully it will replace the previous value in the cache; if an
   * exception is thrown while refreshing the previous value will remain, <i>and the exception will
   * be logged (using {@link java.util.logging.Logger}) and swallowed</i>.
   *
   * <p>Caches loaded by a {@link CacheLoader} will call {@link CacheLoader#reload} if the cache

        // When
        int bytesWritten = response.writeBytesWireFormat(buffer, 10);

        // Then
        assertEquals(0, bytesWritten);
        assertArrayEquals(originalBuffer, buffer); // Buffer should remain unchanged
    }

    @Test
    @DisplayName("Should handle null configuration gracefully")
    void testNullConfiguration() {
        // When - constructor accepts null config without throwing

            assertEquals(0x12345 & 0xFFFF, req.getMaxCount(), "maxCount should contain lower 16 bits");
            assertEquals(0x12345, req.getMinCount(), "minCount should remain original full value");
        }

        @Test
        @DisplayName("Named pipe request uses fixed 1024 hints")
        void namedPipeRequestHints() throws Exception {

        ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }); // exceeds threshold
        cos.flush();
        // Do NOT call getFile() - done remains false

        // ## Act ##
        cos.close();

        // ## Assert ##
        // The temp file should have been cleaned up by close()
        assertFalse(cos.isInMemory());
    }

    @Test