var nanoTime = 0L
    private set

  /** Backlog of tasks to run. Only one task runs at a time. Guarded by `this`. */
  private val serialTaskQueue = ArrayDeque<SerialTask>()

  /** The task that's currently executing. Guarded by `this`. */
  private var currentTask: SerialTask = TestThreadSerialTask

  /** The coordinator task if it's waiting, and how it will resume. Guarded by `this`. */

## Tips and Best Practices

To get realistic results, you should exercise care when running benchmarks. Here are a few tips:

### Do

* Ensure that the system executing your microbenchmarks has as little load as possible. Shutdown every process that can cause unnecessary
  runtime jitter. Watch the `Error` column in the benchmark results to see the run-to-run variance.

import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;
import org.codelibs.fess.util.SystemUtil;

import jakarta.servlet.ServletContext;

/**
 * Job for executing Python scripts within the Fess search engine environment.
 * This job extends ExecJob to provide Python-specific functionality for running
 * Python scripts with proper environment setup and argument passing.
 *

The [mc sql](https://docs.min.io/community/minio-object-store/reference/minio-mc/mc-sql.html) command can be used for executing queries using the command line.

(*) Parquet is disabled on the MinIO server by default. See below how to enable it.

## Enabling Parquet Format

### EventListener.Factory

In the preceding example we used a field, `callStartNanos`, to track the elapsed time of each event. This is handy, but it won’t work if multiple calls are executing concurrently. To accommodate this, use a `Factory` to create a new `EventListener` instance for each `Call`. This allows each listener to keep call-specific state.

    /** Prefix for queries that search only in title fields. */
    protected static final String ALLINTITLE_FIELD_PREFIX = "allintitle:";

    /** The OpenSearch query builder used for executing the search. */
    protected QueryBuilder queryBuilder;

    /** List of sort builders to apply to the search query. */
    protected final List<SortBuilder<?>> sortBuilderList = new ArrayList<>();

import org.opensearch.search.sort.SortBuilders;
import org.opensearch.search.sort.SortOrder;

/**
 * Abstract base class for query command implementations.
 * Provides common functionality for processing and executing search queries.
 */
public abstract class QueryCommand {

    /**
     * Default constructor for QueryCommand.
     * Creates a new instance of the query command with default settings.
     */

   * <i>happen-before</i></a> its execution begins, perhaps in another thread.
   *
   * <p>Guava implementations of {@code ListenableFuture} promptly release references to listeners
   * after executing them.
   *
   * @param listener the listener to run when the computation is complete
   * @param executor the executor to run the listener in

	// https://github.com/golang/go/blob/e705a2d16e4ece77e08e80c168382cdb02890f5b/src/database/sql/sql.go#L2717
	return err.Error() == "sql: statement is closed"
}

// TestPreparedStmtConcurrentClose test calling close and executing SQL concurrently
// this test making sure that the gorm would not get a Segmentation Fault, and the only error cause by this is using a closed Stmt
func TestPreparedStmtConcurrentClose(t *testing.T) {

import groovy.lang.Script;
import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Groovy script engine implementation that extends AbstractScriptEngine.
 * This class provides support for executing Groovy scripts with parameter binding
 * and DI container integration.
 *
 * <p>Thread Safety: This class is thread-safe. Each cached entry holds its own