/**
     * Attempts to acquire a distributed lock for the specified operation with optional data.
     *
     * @param operationName the operation name used as the lock document ID.
     * @param data optional data to store with the operation document.
     * @return {@code true} if the lock was acquired.
     */
    public boolean tryStartOperation(final String operationName, final String data) {

import org.codelibs.fess.unit.UnitFessTestCase;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;

/**
 * Unit tests for {@link UserService}.
 * Tests user service business logic including store, delete, and password operations.
 */
public class UserServiceTest extends UnitFessTestCase {

    private UserService userService;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {

     */
    protected static class InputStreamThread extends Thread {

        /** Buffered reader for input stream. */
        private BufferedReader br;

        /** List to store captured output lines. */
        private final List<String> list = new LinkedList<>();

        /** Maximum number of lines to buffer. */
        private final int maxLineBuffer;

        /**

t:before{content:"\f105"}.fa-angle-up:before{content:"\f106"}.fa-angry:before{content:"\f556"}.fa-angrycreative:before{content:"\f36e"}.fa-angular:before{content:"\f420"}.fa-ankh:before{content:"\f644"}.fa-app-store:before{content:"\f36f"}.fa-app-store-ios:before{content:"\f370"}.fa-apper:before{content:"\f371"}.fa-apple:before{content:"\f179"}.fa-apple-alt:before{content:"\f5d1"}.fa-apple-pay:before{content:"\f415"}.fa-archive:before{content:"\f187"}.fa-archway:before{content:"\f557"}.fa-arrow-...

                // ignore
            }
            CloseableUtil.closeQuietly(writer);

            if (isCommit) {
                try {
                    dictionaryManager.store(KuromojiFile.this, newFile);
                } finally {
                    newFile.delete();
                }
            } else {
                newFile.delete();
            }
        }
    }

        }
    }

    /**
     * Stores a document in the specified index.
     *
     * @param index the index name
     * @param obj   the document object to store
     * @return true if the document was stored successfully, false otherwise
     * @throws SearchEngineClientException if the store operation fails
     */
    public boolean store(final String index, final Object obj) {

* `org.gradle.configuration-cache` – public property of a stable feature
* `org.gradle.configuration-cache.parallel` – public property of an unstable feature
* `org.gradle.configuration-cache.internal.parallel-store` – internal property
* `org.gradle.unsafe.isolated-projects` — public property of an unstable feature
* `org.gradle.experimental.declarative-common` – public property of an unstable feature

## Decision

            });
            saveInfo(messages -> messages.addSuccessSendTestmail(GLOBAL));
            updateProperty(Constants.NOTIFICATION_TO_PROPERTY, form.notificationTo);
            systemProperties.store();
        } catch (final Exception e) {
            logger.warn("Failed to send a test mail.", e);
            saveError(messages -> messages.addErrorsFailedToSendTestmail(GLOBAL));
        }

    public static final String LABELS_crawling_info_DataCrawlEndTime = "{labels.crawling_info_DataCrawlEndTime}";

    /** The key of the message: Indexing Execution Time (Data Store) */
    public static final String LABELS_crawling_info_DataIndexExecTime = "{labels.crawling_info_DataIndexExecTime}";

    /** The key of the message: Index Size (Data Store) */

                    };
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }

            @Override
            public void store(org.codelibs.fess.dict.DictionaryFile<?> file, File tempFile) {
                // Copy tempFile to the actual file
                try {