}

    @Test
    @DisplayName("initSecContext with null buffer and non-zero len throws NPE")
    void testInitSecContextNullBufferNonZeroLen() throws Exception {
        SpnegoContext ctx = newContext();
        // A null buffer with non-zero len leads to NPE while slicing input
        assertThrows(NullPointerException.class, () -> ctx.initSecContext(null, 0, 1));

     * @return current time in milliseconds
     */
    protected long getCurrentTimeMillis() {
        return ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
    }

    /**
     * Creates a string buffer for logging statistics information.
     *
     * @param keyObj the crawler object
     * @param time the timestamp to include
     * @return a StringBuilder with basic log information
     */

    public void checkException() throws SmbException {
        if (this.e != null) {
            throw this.e;
        }
    }

    synchronized void write(final byte[] buffer, final int len, final SmbFileOutputStream d) {
        this.b = buffer;
        this.n = len;
        this.out = d;
        this.ready = false;
        notify();
    }

    @Override
    public void run() {

                final ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
            final byte[] buffer = new byte[1024];
            int len;
            while ((len = gzipIn.read(buffer)) > 0) {
                bos.write(buffer, 0, len);
            }
            return bos.toByteArray();
        } catch (final IOException e) {
            throw new IORuntimeException(e);

import okio.FileNotFoundException
import okio.FileSystem
import okio.ForwardingFileSystem
import okio.ForwardingSource
import okio.Path
import okio.Sink
import okio.Source
import okio.blackholeSink
import okio.buffer

/**
 * A cache that uses a bounded amount of space on a filesystem. Each cache entry has a string key
 * and a fixed number of values. Each key must match the regex `[a-z0-9_-]{1,64}`. Values are byte

        try (InputStream in = file.getInputStream()) {
            byte[] buffer = new byte[10];
            int bytesRead = in.read(buffer);
            assertEquals(10, bytesRead, "Should read requested bytes");
            assertEquals("0123456789", new String(buffer, 0, bytesRead, "UTF-8"));

            // Read next chunk
            bytesRead = in.read(buffer);
            assertEquals(10, bytesRead, "Should read next chunk");

 *
 * @author higa
 */
public abstract class InputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected InputStreamUtil() {
    }

    /** Default buffer size. */
    private static final int BUF_SIZE = 4096;

    /**
     * Creates a {@link FileInputStream}.
     *
     * @param file the file (must not be {@literal null})

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override
    protected int readBytesWireFormat(final byte[] buffer, final int bufferIndex) {
        return 0;
    }

        assertTrue(negotiationResponse.isSigningRequired());
        assertTrue(negotiationResponse.isSigningNegotiated());
    }

    @Test
    @DisplayName("Test buffer size edge cases")
    void testBufferSizeEdgeCases() {
        // Test minimum buffer sizes
        when(negotiationResponse.getSendBufferSize()).thenReturn(1);
        when(negotiationResponse.getReceiveBufferSize()).thenReturn(1);

            } catch (final NoSuchPaddingException e) {
                throw new NoSuchPaddingRuntimeException(e);
            }
        }
        return cipher;
    }

    /**
     * Offers an encryption cipher back to the queue.
     *
     * @param cipher
     *            the cipher to offer
     */
    protected void offerEncryptoCipher(final Cipher cipher) {
        encryptoQueue.offer(cipher);