if (executeImmediate) {
        new RunnableExecutorPair(runnable, executor).execute();
      }
    }

    void execute() {
      synchronized (runnables) {
        if (executed) {
          return;
        }
        executed = true;
      }

      while (!runnables.isEmpty()) {
        runnables.poll().execute();
      }
    }

    private static class RunnableExecutorPair {

        // Test execute method with null query
        QueryContext context = new QueryContext("*:*", false);
        float boost = 1.0f;

        QueryBuilder result = matchAllQueryCommand.execute(context, null, boost);

        assertNotNull(result);
        assertTrue(result instanceof MatchAllQueryBuilder);
    }

    public void test_execute_withZeroBoost() {
        // Test execute method with zero boost

        String result1 = aggregateLogJob.execute();
        assertEquals("", result1);

        // Second call (even) should fail
        String result2 = aggregateLogJob.execute();
        assertTrue(result2.contains("Even call error"));

        // Third call (odd) should succeed
        String result3 = aggregateLogJob.execute();
        assertEquals("", result3);
    }

        // Execute the job
        String result = purgeDocJob.execute();

        // Assert error message is in the result
        assertTrue(result.contains("Invalid argument provided"));
    }

    public void test_execute_queryBuilderCreation() {
        // Execute the job
        purgeDocJob.execute();

        // Verify the query builder was created correctly

        scriptEngineFactory.add("type2", engine2);

        // Execute with first engine
        Object result1 = scriptExecutor.execute("type1", "script for engine1");
        assertEquals("engine1:processed: script for engine1", result1);

        // Execute with second engine
        Object result2 = scriptExecutor.execute("type2", "script for engine2");

	if err != nil {
		t.Fatalf("Test %s: Failed to create HTTP request for RemoveBucketHandler: <ERROR> %v", instanceType, err)
	}
	// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)
	switch rec.Code {
	case http.StatusOK, http.StatusCreated, http.StatusAccepted, http.StatusNoContent:

        try {
            crawlJob.execute();
            fail("Should throw JobProcessingException");
        } catch (JobProcessingException e) {
            assertTrue(e.getMessage().contains("Failed to execute a crawl job"));
            assertNotNull(e.getCause());
            assertEquals("Test exception", e.getCause().getMessage());
        }
    }

    // Test execute with JobProcessingException in executeCrawler

  @Test fun singleQueueIsSerial() {
    redQueue.execute("task one", 100.µs) {
      log += "one:run@${taskFaker.nanoTime} parallel=${taskFaker.isParallel}"
    }

    redQueue.execute("task two", 100.µs) {
      log += "two:run@${taskFaker.nanoTime} parallel=${taskFaker.isParallel}"
    }

    redQueue.execute("task three", 100.µs) {

import java.util.logging.Level;
import org.jspecify.annotations.Nullable;

/**
 * Executor ensuring that all Runnables submitted are executed in order, using the provided
 * Executor, and sequentially such that no two will ever be running at the same time.
 *
 * <p>Tasks submitted to {@link #execute(Runnable)} are executed in FIFO order.
 *
 * <p>The execution of tasks is done by one thread as long as there are tasks left in the queue.

    //                                                                      Search Execute
    //                                                                      ==============
    /**
     * Display the stopwords index page.
     *
     * @param form the search form
     * @return HTML response for the index page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {