public void test_multiple_commands_configuration() throws Exception {
        // Test setting multiple commands without triggering execution
        final List<String> commands =
                Arrays.asList("command1 ${url} ${outputFile}", "command2 ${url} ${outputFile}", "command3 ${url} ${outputFile}");

        generator.setCommandList(commands);
        assertTrue("Multiple commands should be settable", true);

    protected void setUpChild() throws Exception {
        // Get the queryProcessor that was registered in parent class
        queryProcessor = ComponentUtil.getComponent("queryProcessor");

        // Register all query commands needed for testing
        new TermQueryCommand().register();
        new MatchAllQueryCommand().register();
        new PhraseQueryCommand().register();
        new BooleanQueryCommand().register();

        lastaEnv = env;
        return this;
    }

    /**
     * Adds a system property to the command list.
     * If the property exists in the system, it uses that value with optional append value.
     * Otherwise, it uses the default value if provided.
     *
     * @param cmdList the command list to add the property to
     * @param name the property name

        // Scenario 1: Command not found
        CommandExecutionException cmdNotFound = new CommandExecutionException("Command 'xyz' not found");
        assertTrue(cmdNotFound.getMessage().contains("not found"));

        // Scenario 2: Command timeout
        CommandExecutionException timeout =

  }

  @Override
  public void execute(Runnable command) {
    Preconditions.checkNotNull(command, "command must not be null!");
    delegate.execute(command);
  }

  @Override
  public ListenableScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
    Preconditions.checkNotNull(command, "command must not be null");
    Preconditions.checkNotNull(unit, "unit must not be null!");

  }

  @Override
  public void execute(Runnable command) {
    Preconditions.checkNotNull(command, "command must not be null!");
    delegate.execute(command);
  }

  @Override
  public ListenableScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) {
    Preconditions.checkNotNull(command, "command must not be null");
    Preconditions.checkNotNull(unit, "unit must not be null!");

                            }
                            if (Constants.CRAWLER_PROCESS_COMMAND_THREAD_DUMP.equals(command)) {
                                ThreadDumpUtil.printThreadDump();
                            } else {
                                logger.warn("Unknown process command: {}", command);
                            }

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.
     */
    public QueryCommand() {
        // Default constructor

- kubeadm: if an unknown command name is passed to any parent command such as 'kubeadm init phase' return an error. If 'kubeadm init phase' or another command that has subcommands is called without subcommand name, print the available commands and also return an error. ([#127096](https://github.com/kubernetes/kubernetes/pull/127096), [@neolit123](https://github.com/neolit123)) [SIG...

import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * Executable class for generating thumbnails for indexed documents.
 * This class provides a command-line interface for thumbnail generation tasks.
 */
public class ThumbnailGenerator {

    private static final Logger logger = LogManager.getLogger(ThumbnailGenerator.class);

    /**