### Multiple Processes - An Example { #multiple-processes-an-example }

In this example, there's a **Manager Process** that starts and controls two **Worker Processes**.

This Manager Process would probably be the one listening on the **port** in the IP. And it would transmit all the communication to the worker processes.

public class FessActionValidator<MESSAGES extends UserMessages> extends ActionValidator<MESSAGES> {

    /**
     * Constructs a new FessActionValidator with the specified components.
     *
     * @param requestManager the request manager for handling HTTP requests
     * @param messagesCreator the creator for user messages
     * @param runtimeGroups the runtime validation groups
     */

    //                                                                           Attribute
    //                                                                           =========
    /** The dictionary manager. */
    @Resource
    protected DictionaryManager dictionaryManager;

    // ===================================================================================

        super.setUp();
        authenticationManager = new AuthenticationManager();
    }

    // Test default constructor
    public void test_constructor() {
        AuthenticationManager manager = new AuthenticationManager();
        assertNotNull(manager);
    }

    // Test insert with no chains
    public void test_insert_noChains() {
        User user = createTestUser("testuser");
        authenticationManager.insert(user);

   * see calls in Google code that pass a null `dir` to a FilenameFilter.... So let's declare the
   * parameter as non-nullable (since passing null to a FilenameFilter is unsafe in general), but if
   * someone still manages to pass null, let's continue to have the method work.
   *
   * (PatternFilenameFilter is of course one of those classes that shouldn't be a publicly visible

        /*
         * NOTE: Metadata at the g:a level contains a collection of available versions. After merging, we can't tell
         * which repository provides which version so the metadata manager must not restrict the artifact resolution to
         * the repository with the most recent updates.
         */
    }

    assertThat(actual).isNotNull()
  }

  private fun enableTls() {
    // Generate a self-signed cert for the server to serve and the client to trust.
    // can't use TlsUtil.localhost with a non OpenJSSE trust manager
    val heldCertificate =
      HeldCertificate
        .Builder()
        .commonName("localhost")
        .addSubjectAlternativeName("localhost")
        .build()
    val handshakeCertificates =

    //                                                                           Attribute
    //                                                                           =========

    /** The search engine API manager. */
    @Resource
    protected SearchEngineApiManager searchEngineApiManager;

    // ===================================================================================

import jcifs.smb1.dcerpc.rpc;

/**
 * MS-RPC SAMR open domain operation.
 *
 * This class implements the SAMR OpenDomain operation for obtaining
 * a handle to a specific domain in the Security Account Manager.
 */
public class MsrpcSamrOpenDomain extends samr.SamrOpenDomain {

    /**
     * Creates a new request to open a domain handle.
     *
     * @param handle the SAM policy handle

        } catch (IOException e) {
            statistics.recordWriteError();
            throw e;
        }
    }

    /**
     * Gets the RDMA buffer manager for memory operations.
     *
     * @return buffer manager instance
     */
    public RdmaBufferManager getBufferManager() {
        return bufferManager;
    }

    /**
     * Gets RDMA statistics.
     *