}

        assertTrue(sourceFile.exists(), "Source file should exist");
        assertFalse(targetFile.exists(), "Target file should not exist initially");

        // Copy file
        sourceFile.copyTo(targetFile);

        assertTrue(sourceFile.exists(), "Source file should still exist after copy");
        assertTrue(targetFile.exists(), "Target file should exist after copy");

            keyManager.rotateSessionKey(sessionId);
        }

        // Verify archives exist
        assertTrue(keyManager.hasSessionKey(sessionId + ".v0"), "Version 0 should exist");
        assertTrue(keyManager.hasSessionKey(sessionId + ".v1"), "Version 1 should exist");
        assertTrue(keyManager.hasSessionKey(sessionId + ".v2"), "Version 2 should exist");

        // Remove main key
        keyManager.removeSessionKey(sessionId);

    }

    // Test all annotation methods exist
    public void test_annotationMethods() {
        try {
            final Method protocolTypeMethod = UriType.class.getMethod("protocolType");
            assertNotNull("protocolType() method should exist", protocolTypeMethod);

            "The specified domain did not exist.", "The directory name is invalid.", "Access is denied.",
            "The format of the specified computer name is invalid.", "The pipe has been ended.",
            "The specified local group does not exist.",
            "Logon failure: the user has not been granted the requested logon type at this computer.",

        // Verify constructor exists with Context parameter
        try {
            FessWebResourceRoot.class.getConstructor(Context.class);
            assertTrue("Constructor with Context parameter exists", true);
        } catch (final NoSuchMethodException e) {
            fail("Constructor with Context parameter should exist");
        }
    }

    public void test_methodsExist() {

        // Verify required methods exist
        try {
            CustomSizeValidator.class.getMethod("initialize", CustomSize.class);
            CustomSizeValidator.class.getMethod("isValid", CharSequence.class, ConstraintValidatorContext.class);
            assertTrue("Required methods exist", true);
        } catch (final NoSuchMethodException e) {
            fail("Required methods should exist: " + e.getMessage());
        }
    }

    }

    // Test all annotation methods exist
    public void test_annotationMethods() {
        try {
            final Method messageMethod = CustomSize.class.getMethod("message");
            assertNotNull("message() method should exist", messageMethod);
            assertEquals("message() return type should be String", String.class, messageMethod.getReturnType());

            "The specified domain did not exist.", "The directory name is invalid.", "Access is denied.",
            "The format of the specified computer name is invalid.", "The pipe has been ended.",
            "The specified local group does not exist.",
            "Logon failure: the user has not been granted the requested logon type at this computer.",

            // key3 should definitely exist (just created)
            assertNotNull(limitedManager.getLease(key3));

            // key1 should have been evicted (oldest)
            assertNull(limitedManager.getLease(key1));

            // key2 should still exist (not the oldest)
            assertNotNull(limitedManager.getLease(key2));
        } finally {

        // but we can test that the class exists and basic functionality
        try {
            // Use reflection to verify ProcessDestroyer class exists
            final Class<?> destroyerClass = Class.forName("org.codelibs.fess.thumbnail.impl.CommandGenerator$ProcessDestroyer");
            assertNotNull("ProcessDestroyer class should exist", destroyerClass);