// Given
        String message = "CIFS operation failed";
        Exception cause = new RuntimeException("Root cause");

        // When
        CIFSException exception = new CIFSException(message, cause);

        // Then
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
    }

    @Test

  }

  public void testSetFailure() throws Exception {
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

  public void testSetFailureNull() throws Exception {
    assertThrows(NullPointerException.class, () -> future.setException(null));
    assertFalse(future.isDone());
    assertTrue(future.setException(new Exception("failure")));
    tester.testFailedFuture("failure");
  }

public class MessageFormatterTest {

    @Before
    public void setUp() throws Exception {
        LocaleUtil.setDefault(() -> Locale.JAPANESE);
    }

    @After
    public void tearDown() throws Exception {
        LocaleUtil.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetMessage() throws Exception {
        final String s = MessageFormatter.getMessage("EMSG0000");

            // Log the exception for debugging purposes but don't fail the test
            System.out.println("Expected exception in test environment: " + t.getClass().getSimpleName() + ": " + t.getMessage());

            // Verify that it's a system-related exception, not a method signature issue

    assertEquals(EXCEPTION, service.failureCause());
    assertThat(e).hasCauseThat().isEqualTo(EXCEPTION);
    assertEquals(
        ImmutableList.of(State.STARTING, State.RUNNING, State.FAILED), listener.getStateHistory());
  }

  public void testThrowingServiceStartAndWait() throws Exception {
    StartThrowingService service = new StartThrowingService();

    assertEquals(EXCEPTION, service.failureCause());
    assertThat(e).hasCauseThat().isEqualTo(EXCEPTION);
    assertEquals(
        ImmutableList.of(State.STARTING, State.RUNNING, State.FAILED), listener.getStateHistory());
  }

  public void testThrowingServiceStartAndWait() throws Exception {
    StartThrowingService service = new StartThrowingService();

    }

    /**
     * @throws Exception
     */
    public void testIsExist() throws Exception {
        assertEquals("1", true, ResourceUtil.isExist("CLMessages.properties"));
        assertEquals("2", false, ResourceUtil.isExist("hoge"));
    }

    /**
     * @throws Exception
     */
    public void testGetExtension() throws Exception {

import org.codelibs.core.beans.impl.sub.MogeBeanFactory;
import org.codelibs.core.exception.IllegalPropertyRuntimeException;
import org.junit.Test;

/**
 * @author higa
 *
 */
public class PropertyDescImplTest {

    /**
     * @throws Exception
     */
    @Test
    public void testSetValue() throws Exception {
        final MyBean myBean = new MyBean();

        final List<String> commands = Collections.singletonList("test_command");
        generator.setCommandList(commands);
        assertTrue(true);
    }

    @Test
    public void test_setCommandList_null() throws Exception {
        generator.setCommandList(null);
        assertTrue(true);
    }

    @Test
    public void test_setCommandList_empty() throws Exception {

    public void test_setError_withNullException() {
        // Test setError with null exception
        // Note: WebApiException constructor calls e.getMessage() on null exception, causing NullPointerException
        try {
            WebApiUtil.setError(500, (Exception) null);
            fail("setError should throw NullPointerException when passed null exception");
        } catch (NullPointerException e) {