@Test
    public void test_expiry_validValue() {
        long newExpiry = 60L * 24 * 60 * 60 * 1000L; // 60 days
        PurgeThumbnailJob result = purgeThumbnailJob.expiry(newExpiry);

        // Test method chaining
        assertSame(purgeThumbnailJob, result);
        // Test value was set
        assertEquals(newExpiry, purgeThumbnailJob.getExpiry());
    }

    // Test expiry setter with zero value (should not change)

     * @return this instance for method chaining
     */
    public IndexExportJob query(final QueryBuilder queryBuilder) {
        this.queryBuilder = queryBuilder;
        return this;
    }

    /**
     * Sets the export format.
     *
     * @param format the format name (e.g. "html", "json")
     * @return this instance for method chaining
     */
    public IndexExportJob format(final String format) {

            fail("Should have caught as FessSystemException");
        }
    }

    @Test
    public void test_exceptionChaining() {
        // Test that the exception can be used in exception chaining
        String username = "testuser";
        FessUserNotFoundException originalException = new FessUserNotFoundException(username);

        try {

         * @return this builder for method chaining
         */
        public SearchConditionBuilder query(final String query) {
            this.query = query;
            return this;
        }

        /**
         * Sets the search request type.
         *
         * @param searchRequestType the search request type
         * @return this builder for method chaining
         */

        QueryBuilder queryBuilder = QueryBuilders.matchAllQuery();
        UpdateLabelJob returnedJob = updateLabelJob.query(queryBuilder);

        assertSame(updateLabelJob, returnedJob); // Method chaining
        assertEquals(queryBuilder, updateLabelJob.queryBuilder);
    }

    // Test query() method with null
    @Test
    public void test_query_withNull() {
        updateLabelJob.query(null);

          .testForwarding(Equals.class, NoDelegateToEquals::new);
    } catch (AssertionFailedError expected) {
      return;
    }
    fail("Should have failed");
  }

  /** An interface for the 2 ways that a chaining call might be defined. */
  private interface ChainingCalls {
    // A method that is defined to 'return this'
    @CanIgnoreReturnValue
    ChainingCalls chainingCall();

        assertEquals(Boolean.TRUE, boolOpt.get());
        assertNotNull(dateOpt.get());
    }

    @Test
    public void test_ofNullable_chainedOperations() {
        // Test chaining operations on the returned OptionalEntity
        String testValue = "HELLO WORLD";
        OptionalEntity<String> result = OptionalUtil.ofNullable(testValue);

        assertTrue(result.isPresent());

          .testForwarding(Equals.class, NoDelegateToEquals::new);
    } catch (AssertionFailedError expected) {
      return;
    }
    fail("Should have failed");
  }

  /** An interface for the 2 ways that a chaining call might be defined. */
  private interface ChainingCalls {
    // A method that is defined to 'return this'
    @CanIgnoreReturnValue
    ChainingCalls chainingCall();

	CreateInterface[T]
}

type CreateInterface[T any] interface {
	ExecInterface[T]
	// chain methods available at start; Select/Omit keep CreateInterface to allow Create chaining
	Scopes(scopes ...func(db *Statement)) ChainInterface[T]
	Where(query interface{}, args ...interface{}) ChainInterface[T]
	Not(query interface{}, args ...interface{}) ChainInterface[T]

            fail("Should throw JobProcessingException");
        } catch (JobProcessingException e) {
            assertEquals("Specific job error", e.getMessage());
        }
    }

    // Test method chaining
    @Test
    public void test_methodChaining() {
        CrawlJob result = crawlJob.namespace("test")
                .documentExpires(10)
                .webConfigIds(new String[] { "web1" })