assertEquals(0, numCalls.get());
    reject.set(false);
    executor.execute(task);
    assertEquals(1, numCalls.get());
  }

  /*
   * Under Android, MyError propagates up and fails the test?
   *
   * TODO(b/218700094): Does this matter to prod users, or is it just a feature of our testing
   * environment? If the latter, maybe write a custom Executor that avoids failing the test when it

  // At least, I assume that's why. TODO(cpovirk): Check, and maybe add a test for this.
  @SuppressWarnings("ThreadPriorityCheck") // We only propagate user requests (which we discourage).
  private static ThreadFactory doBuild(ThreadFactoryBuilder builder) {
    String nameFormat = builder.nameFormat;
    Boolean daemon = builder.daemon;

 * continues. See {@link QueueWorker#workOnQueue} for details.
 *
 * <p>{@code RuntimeException}s thrown by tasks are simply logged and the executor keeps trucking.
 * If an {@code Error} is thrown, the error will propagate and execution will stop until it is
 * restarted by a call to {@link #execute}.
 */
@J2ktIncompatible
@GwtIncompatible
final class SequentialExecutor implements Executor {

        verify(transport).isSigningOptional();
        verify(transport).isSigningEnforced();
    }

    // Error propagation: signing checks may throw SmbException
    @Test
    @DisplayName("signing checks propagate SmbException")
    void signingChecks_throw() throws Exception {
        doThrow(new SmbException("opt error")).when(transport).isSigningOptional();

     */
    @Test
    void testClose_throwsException() {
        doThrow(new RuntimeException("Failed to close")).when(smbTree).close();

        assertThrows(RuntimeException.class, () -> smbTree.close(), "Should propagate exception when close fails");
    }

    /**
     * Test for AutoCloseable functionality.
     * Verifies that SmbTree can be used in try-with-resources.
     */
    @Test
    void testAutoCloseable() {

        };
        ComponentUtil.register(searchEngineClient, "searchEngineClient");

        // OutOfMemoryError is an Error, not Exception, so it will not be caught
        // The test should expect the error to propagate
        try {
            purgeDocJob.execute();
            fail("Expected OutOfMemoryError to be thrown");
        } catch (OutOfMemoryError e) {
            assertEquals("Out of memory", e.getMessage());

        verify(configuration, atLeastOnce()).getOemEncoding();
        verifyNoMoreInteractions(cifsContext, configuration);
    }

    @Test
    @DisplayName("getPreNTLMResponse: unsupported OEM encoding propagates as runtime exception")
    void testGetPreNTLMResponse_invalidEncoding() {
        // Arrange
        when(cifsContext.getConfig()).thenReturn(configuration);

        when(nego.isSigningNegotiated()).thenReturn(false);
        assertFalse(session.isSignatureSetupRequired());
    }

    @Test
    @DisplayName("reauthenticate propagates transport failures")
    void testReauthenticatePropagates() throws Exception {
        SmbSessionImpl session = newSession();
        // Cause the inner reauthenticate to fail at first transport call

            throw new RuntimeException("Test exception");
        };

        try {
            ThreadDumpUtil.processThreadDump(exceptionConsumer);
            fail("Should propagate RuntimeException from consumer");
        } catch (RuntimeException e) {
            assertEquals("Test exception", e.getMessage());
        }
    }

        verify(resp, atLeastOnce()).reset();
        // Verify disconnect was called on retry
        verify(c, atLeastOnce()).disconnect(eq(true));
    }

    @Test
    @DisplayName("send honors NO_RETRY and propagates error immediately")
    void send_noRetry_param() throws Exception {
        SmbTreeConnection c = newConn();
        SmbTreeImpl tree = mock(SmbTreeImpl.class);
        when(tree.acquire(false)).thenReturn(tree);