.filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        return body;
    }

    /**
     * Gets the CSV file encoding from configuration.
     *
     * @return the CSV file encoding string
     */
    private String getCsvEncoding() {
        return fessConfig.getCsvFileEncoding();
    }

            }
            // Add brackets for IPv6
            return "[" + address + "]";
        }
        return address;
    }

    /**
     * Compresses an IPv6 address string to its canonical compressed form.
     * For example, "0:0:0:0:0:0:0:1" becomes "::1"
     *
     * @param ipv6Address the IPv6 address string to compress
     * @return the compressed IPv6 address string
     */

### Debugging Gradle

See the [Debugging Gradle](./contributing/Debugging.md) guide for tips on debugging Gradle.

If you made changes to build logic in the `build-logic` included build, you can run its tests by executing `./gradlew :build-logic:check`.

### Fixing DCO failures/Signing Off Commits After Submitting a Pull Request

    @Test
    public void test_addChain_single() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        authenticationManager.addChain(chain);

        // Verify chain was added by testing its effect
        User user = createTestUser("testuser");
        authenticationManager.insert(user);
        assertEquals(1, chain.updateCallCount);
    }

    // Test addChain multiple
    @Test

                if (oldNullability != newNullability) {
                    errors << "Type parameter $idx nullability changed, might be a breaking change depending on its usage".toString()
                }
            }

        } else if (member instanceof JApiField) {

            JApiField field = (JApiField) member
            CtField oldField = field.oldFieldOptional.get()

      "dutch_stemmer": {
        "type":       "stemmer",
        "language":   "dutch"
      },
      "dutch_override": {
        "type":       "stemmer_override",
        "rules": [
          "fiets=>fiets",
          "bromfiets=>bromfiets",
          "ei=>eier",
          "kind=>kinder"
        ]
      },
      "english_keywords": {
        "type":       "keyword_marker",

        @Override
        public void addShutdownListener(ShutdownListener listener) {
            shutdownListenerAdded = true;
            // Optionally execute the listener to test its behavior
            listener.onShutdown();
        }

        @Override
        public Object execute(String scriptType, String script) {
            return null;
        }
    }

        final Map<String, Object> result = new HashMap<>();
        result.put("status", "error");
        result.put("message", message);
        return result;
    }

    /**
     * Gets the user ID from the request.
     *
     * @param request the HTTP request
     * @return the user ID, or null if the user is a guest
     */
    protected String getUserId(final HttpServletRequest request) {

        schedulerPager.clear();
        return asHtml(path_AdminScheduler_AdminSchedulerJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    /**
     * Sets up search paging data for rendering the scheduled job list.
     *
     * @param data the render data to populate
     * @param form the search form containing current search criteria
     */

            searchPaging(data, form);
        });
    }

    /**
     * Display a paginated list of stemmer override items.
     * Sets the current page number and shows the list with pagination.
     *
     * @param pageNumber Optional page number to display (0-based)
     * @param form The search form containing filter criteria