*
     * @param thumbnailId the identifier for the thumbnail being generated
     * @param cmdList the list of command arguments to execute
     * @return the exit code of the process if it finishes normally; -1 if the process fails or is terminated
     */
    protected int executeCommand(final String thumbnailId, final List<String> cmdList) {
        ProcessDestroyer task = null;
        Process p = null;
        InputStreamThread ist = null;

     * Creates a RelatedQuery entity from the provided form data.
     *
     * @param form the form containing the related query data
     * @return optional entity containing the related query data, or empty if creation fails
     */
    public static OptionalEntity<RelatedQuery> getRelatedQuery(final CreateForm form) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

            assertFalse(echoResponse.isVerifyFailed());
            verify(mockDigest).verify(buffer, 0, 100, 0, echoResponse);
        }

        @Test
        @DisplayName("Should fail signature verification when digest verification fails")
        void testVerifySignatureFailed() throws Exception {
            byte[] buffer = new byte[1024];
            echoResponse.setDigest(mockDigest);

                 * be cached and cause other types to fail even though they may
                 * not be the authority for the name. For example, if a WINS lookup
                 * for FOO fails and caches unknownAddress for FOO, a subsequent
                 * lookup for FOO using BCAST should not fail because of that
                 * name cached from WINS.
                 *

        buf[i++] = (byte) '\0';
        advance(i - index);
    }

    /**
     * Decodes a string from NDR format.
     *
     * @return the decoded string
     * @throws NdrException if decoding fails
     */
    public String dec_ndr_string() throws NdrException {
        align(4);
        int i = index;
        String val = null;
        int len = Encdec.dec_uint32le(buf, i);
        i += 12;

        // Execute send - should retry after transport error
        try {
            c.send(loc, req, resp, EnumSet.noneOf(RequestParam.class));
        } catch (Exception e) {
            // It's ok if it fails, we just want to verify reset was called
        }

        // Request/response reset should happen on retry
        verify(req, atLeastOnce()).reset();
        verify(resp, atLeastOnce()).reset();

    // is cancelled.
    future1.cancel(false);

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    // (This is the assertion that fails.)
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();
    executor.shutdown();

   * executor will not be {@linkplain ScheduledExecutorService#shutdown shutdown} when this service
   * {@linkplain Service.State#TERMINATED terminates} or {@linkplain Service.State#TERMINATED
   * fails}. Subclasses may override this method to supply a custom {@link ScheduledExecutorService}
   * instance. This method is guaranteed to only be called once.
   *

        // Mock transports
        SmbTransportImpl trans1 = mock(SmbTransportImpl.class);
        SmbTransportImpl trans2 = mock(SmbTransportImpl.class);

        // trans2 fails first (lower fail count, tried first), trans1 succeeds
        when(trans2.unwrap(SmbTransportImpl.class)).thenReturn(trans2);
        when(trans2.ensureConnected()).thenThrow(new IOException("Connection failed"));

      assertBitEquals(VALUES[i], aa.get(i));
      aa.lazySet(i, -3.0);
      assertBitEquals(-3.0, aa.get(i));
    }
  }

  /** compareAndSet succeeds in changing value if equal to expected else fails */
  public void testCompareAndSet() {
    AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i : new int[] {0, SIZE - 1}) {
      double prev = 0.0;
      double unused = Math.E + Math.PI;