CHILD_URL,
        /** Indicates that multiple child URLs were discovered. */
        CHILD_URLS,
        /** Indicates that a URL was evaluated for crawling eligibility. */
        EVALUATED,
        /** Indicates that a general exception occurred during processing. */
        EXCEPTION,
        /** Indicates that processing of a URL has finished. */
        FINISHED,

The build session state is managed by the `BuildSessionState` class.
An instance is created at the start of a Gradle invocation and discarded at the end of that invocation.

The build session state also includes "cross session" state that is shared with any "nested" sessions that need to be created.
This only happens when the `GradleBuild` task is used. You can mostly ignore the distinction between "cross session" and "build session" state.

            Assertions.assertEquals(3, results[i].length, "Thread " + i + " got wrong array length");
        }
    }

    /**
     * Test that volatile fields ensure visibility across threads.
     * Verify that changes to lastLoadedTime are visible to all threads.
     */
    @Test
    public void test_volatileFields_visibility() throws Exception {

        Throwable result = exception.fillInStackTrace();
        assertNull(result);

        // Verify that stack trace is not generated
        StackTraceElement[] stackTrace = exception.getStackTrace();
        assertEquals(0, stackTrace.length);
    }

    @Test
    public void test_serialVersionUID() {
        // Test that serialVersionUID is correctly defined

    // ===== Null-Safety Tests =====

    /**
     * Test that evaluate returns null for null template
     */
    @Test
    public void test_evaluate_nullTemplate() {
        final Map<String, Object> params = new HashMap<>();
        params.put("test", "value");
        assertNull(groovyEngine.evaluate(null, params));
    }

    /**
     * Test that evaluate returns null for empty string template
     */
    @Test

    public void test_serialization() {
        // Test that the serialVersionUID is properly defined
        // This test verifies that the class can be instantiated and has the serial version UID
        ServletException servletException = new ServletException("Serialization test");
        ServletRuntimeException runtimeException = new ServletRuntimeException(servletException);

    /**
     * Deletes old documents that have the same URL but different document IDs
     * as the documents in the provided list. This prevents duplicate documents
     * from accumulating in the index.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param docList the list of new documents to check against
     * @return the number of old documents that were deleted
     */

 * This exception is used to indicate that a user does not have the required role
 * to access a specific action or resource.
 *
 */
public class UserRoleLoginException extends RuntimeException {

    private static final long serialVersionUID = 1L;

    /** The action class that requires specific user roles */
    private final Class<? extends RootAction> actionClass;

    /**

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the

 * This exception indicates that the required container or a specific component within it cannot be accessed.
 */
public class ContainerNotAvailableException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /** The name of the component that is not available. */
    private String componentName;

    /**