// The opposite order should fail (Policies.THROW).
    PotentialDeadlockException firstException = null;
    lockB.lock();
    PotentialDeadlockException expected =
        assertThrows(PotentialDeadlockException.class, () -> lockA.lock());
    checkMessage(expected, "LockB -> LockA", "LockA -> LockB");
    firstException = expected;
    // Second time should also fail, with a cached causal chain.

    @Override
    public void oneArg(String s) {
      // Fail: missing NPE for s
    }
  }

  public void testFailOneArgDoesntThrowNpe() {
    shouldFail(new FailOneArgDoesntThrowNpe());
  }

  private static class FailOneArgThrowsWrongType extends PassObject {
    @Override
    public void oneArg(String s) {
      doThrow(s); // Fail: throwing non-NPE exception for null s
    }
  }

                    try {
                      peeker.getDone(input2Failed);
                      fail("Peeker.getDone() should fail for failed inputs");
                    } catch (ExecutionException expected) {
                    }
                    try {
                      peeker.getDone(nonInput);
                      fail("Peeker should not be able to peek into non-input ClosingFuture.");

    }

    public void test_getThemeName_emptyName() {
        try {
            Artifact artifact = new Artifact("fess-theme", "1.0.0");
            themeHelper.getThemeName(artifact);
            fail("Should throw exception");
        } catch (Exception e) {
            // Could be ThemeException or StringIndexOutOfBoundsException
            assertTrue(true);
        }
    }

        // Arrange
        SmbPipeOutputStream out = newStream();
        CIFSException boom = new CIFSException("tree-fail");
        when(handle.ensureTreeConnected()).thenThrow(boom);

        // Act + Assert
        CIFSException ex = assertThrows(CIFSException.class, out::ensureTreeConnected);
        assertEquals("tree-fail", ex.getMessage());
        verify(handle, times(1)).ensureTreeConnected();
    }

    @Test

        return ITEM_ENDPOINT_SUFFIX;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        fail(); // Unreachable
        return null;
    }

    @Override
    protected void testRead() {

    try {
      future.get();
      fail();
    } catch (Exception e) {
      assertThat(e).isInstanceOf(IllegalStateException.class);
      assertThat(e).hasMessageThat().isEqualTo("Cannot get() on a pending future.");
    }
  }

  static void verifyTimedGetOnPendingFuture(Future<?> future) {
    try {
      future.get(0, SECONDS);
      fail();
    } catch (Exception e) {

        } catch (Exception e) {
            fail("setObject should handle missing request gracefully: " + e.getMessage());
        }
    }

    public void test_setObject_withNullName() {
        // Test setObject with null name
        try {
            WebApiUtil.setObject(null, "testValue");
        } catch (Exception e) {
            fail("setObject should handle null name gracefully: " + e.getMessage());

      |-----END PRIVATE KEY-----
      |
      """.trimMargin()
    try {
      decode(certificatePem)
      fail<Any>()
    } catch (expected: IllegalArgumentException) {
      assertThat(expected.message).isEqualTo("string does not include a private key")
    }
    try {
      decode(pkcs8Pem)
      fail<Any>()
    } catch (expected: IllegalArgumentException) {

    @DisplayName("Pre-auth integrity should fail with non-SMB3.1.1")
    void testPreauthWithNonSmb311() throws Exception {
        // Setup SMB3.0
        when(negotiateResponse.getSelectedDialect()).thenReturn(DialectVersion.SMB300);
        setPrivateField(transport, "smb2", true);
        setPrivateField(transport, "negotiated", negotiateResponse);

        // Calculate hash should fail