InputStream is3 = mockResource.openInputStream(1, 2, 3);

            // Then
            assertNotNull(is1, "Default input stream should not be null");
            assertNotNull(is2, "Input stream with sharing should not be null");
            assertNotNull(is3, "Input stream with full params should not be null");
            assertSame(mockInputStream, is1, "Should return expected input stream");

blocking APIs. Each application-layer thread wants to do blocking I/O for a specific stream, but the streams are multiplexed on the socket. You can't just talk to the socket, you need to cooperate with the other application-layer threads that you're sharing it with.

Framing rules make it impractical to implement http/2 correctly on a single blocking thread. The flow-control features introduce feedback between reads and writes, requiring writes to acknowledge reads and reads to throttle writes....

        // Should be an error status (0xC prefix)
        assertTrue((status & (int) 0xC0000000L) == (int) 0xC0000000L);
    }

    @Test
    @DisplayName("Should handle sharing violation status")
    void testSharingViolationStatus() {
        // Given
        int status = NtStatus.NT_STATUS_SHARING_VIOLATION;

        // When/Then
        assertEquals((int) 0xC0000043L, status);

        }
        if (!replacement.startsWith(GROOVY_MATCHER)) {
            return (u, m) -> m.replaceAll(replacement);
        }
        final String template = replacement.substring(GROOVY_MATCHER.length());
        return (u, m) -> {
            final Map<String, Object> paramMap = new HashMap<>();
            paramMap.put("url", u);
            paramMap.put("matcher", m);

      return false // Wildcard pattern for single-label domain name -- not permitted.
    }

    // Hostname must end with the region of pattern following the asterisk.
    val suffix = pattern.substring(1)
    if (!hostname.endsWith(suffix)) {
      return false // Hostname does not end with the suffix.
    }

    // Check that asterisk did not match across domain name labels.

    }

    /**
     * Returns the string that has already been read.
     *
     * @return The string that has already been read.
     */
    public String getReadString() {
        return str.substring(0, colno - 1);
    }

    private int read() {
        if (colno >= str.length()) {
            return -1;
        }
        return str.charAt(colno++);
    }

    private void initVal() {

        assertNotNull(headerValue, "WWW-Authenticate header should be set");
        assertEquals("NTLM ", headerValue.substring(0, 5), "Header should start with 'NTLM '");

        // Decode the returned Type 2 message and check its signature and type
        byte[] type2Bytes = Base64.getDecoder().decode(headerValue.substring(5));
        assertEquals('N', (char) type2Bytes[0]);
        assertEquals('T', (char) type2Bytes[1]);

    val secondSpace = line.indexOf(' ', keyBegin)
    val key: String
    if (secondSpace == -1) {
      key = line.substring(keyBegin)
      if (firstSpace == REMOVE.length && line.startsWith(REMOVE)) {
        lruEntries.remove(key)
        return
      }
    } else {
      key = line.substring(keyBegin, secondSpace)
    }

    var entry: Entry? = lruEntries[key]
    if (entry == null) {

        if (StringUtil.isBlank(virtualHostKey)) {
            return null;
        }
        final String prefix = "/" + virtualHostKey;
        if (requestPath.startsWith(prefix)) {
            return requestPath.substring(prefix.length());
        }
        return null;
    }

    @Override
    public String toString() {
        return DfTypeUtil.toClassTitle(this) + ":{}";
    }

    @Override

            final byte[] challenge) throws IOException, ServletException {
        String msg = req.getHeader("Authorization");
        if (msg != null && msg.startsWith("NTLM ")) {
            final byte[] src = Base64.decode(msg.substring(5));
            if (src[8] == 1) {
                final Type1Message type1 = new Type1Message(src);
                final Type2Message type2 = new Type2Message(type1, challenge, null);