*
     * @return <code>true</code> if the resource exists or is alive or
     *         <code>false</code> otherwise
     * @throws SmbException if an error occurs while checking existence
     */

    public boolean exists() throws SmbException {

        if (attrExpiration > System.currentTimeMillis()) {
            return isExists;
        }

        UnknownHostException exception = assertThrows(UnknownHostException.class, () -> {
            nameServiceClient.getNbtByName("NONEXISTENT-FAST-FAIL");
        }, "Should throw UnknownHostException for non-existent NetBIOS name");

        // Verify the exception message indicates name resolution failure
        assertTrue(exception.getMessage().contains("NONEXISTENT") || exception.getMessage().contains("unknown")

        // Test operations on empty service
        assertEquals(0, mockService.getRegistrationCount());
        assertFalse(mockService.hasRegistration("non-existent"));
        assertFalse(mockService.unregisterWitness("non-existent"));
        assertFalse(mockService.processHeartbeat("non-existent", 1));

        // Test registration with null/empty values
        String regId1 = mockService.registerWitness(null, "192.168.1.100", 1);

        // Test the pattern used in getDefaultMappings/getDefaultIndexSettings
        // with a non-existent resource
        try {
            try (final InputStream is = getClass().getClassLoader().getResourceAsStream("non/existent/resource.json")) {
                if (is == null) {
                    throw new IOException("Resource not found: non/existent/resource.json");
                }
                // This line should not be reached

package org.codelibs.core.beans.util;

import java.util.LinkedHashMap;

import org.codelibs.core.exception.IllegalKeyOfBeanMapException;

/**
 * A map with String keys that throws an exception when accessing (get) a non-existent key.
 *
 * @author higa
 */
public class BeanMap extends LinkedHashMap<String, Object> {

    private static final long serialVersionUID = 1;

    /**
     * Creates a new {@link BeanMap}.
     */

        // Should not throw exception
        lenientService.updatePreauthHash("non-existent", "test".getBytes());

        // With enforcement enabled, should throw exception
        assertThrows(CIFSException.class, () -> {
            preauthService.updatePreauthHash("non-existent", "test".getBytes());
        });
    }

    @Test
    @DisplayName("Test context invalidation")

            }
        }
    }

    public void test_fileNotFoundException() {
        // Test with non-existent file
        File nonExistentFile = new File("/tmp/non-existent-file-" + System.currentTimeMillis() + ".tmp");

        try {
            new TemporaryFileInputStream(nonExistentFile);
            fail("Should throw FileNotFoundException");

        tempFile = new File(Curl.tmpDir, "non-existent-file.tmp");
        assertFalse(tempFile.exists());

        ContentCache cache = new ContentCache(tempFile);

        // Should throw IOException when file doesn't exist
        try {
            cache.close();
            fail("Expected IOException for non-existent file");
        } catch (IOException e) {

        assertTrue(laterAge >= 200, "Age should increase after delay");
    }

    @Test
    public void testKeyAgeNonExistent() {
        assertEquals(-1, keyManager.getKeyAge("non-existent"), "Non-existent key should return -1 for age");
    }

    @Test
    public void testConfigureKeyRotation() {
        // Test that configuration doesn't throw
        keyManager.configureKeyRotation(60000);

        assertEquals("new_value1", retrievedValues[0]);
        assertEquals("new_value2", retrievedValues[1]);
    }

    public void test_getValuesNonExistentKey() {
        // Test getValues with non-existent key
        ExtractData data = new ExtractData();

        String[] values = data.getValues("nonexistent");
        assertNull(values);
    }

    public void test_getKeySet() {