// NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (this) {

    this.loggerName = ownerOfLogger.getName();
  }

  Logger get() {
    /*
     * We use double-checked locking. We could the try racy single-check idiom, but that would
     * depend on Logger to not contain mutable state.
     *
     * We could use Suppliers.memoizingSupplier here, but I micro-optimized to this implementation
     * to avoid the extra class for the lambda (and maybe more for memoizingSupplier itself) and the
     * indirection.

        // Test throwing and catching the exception with cause
        String expectedMessage = "Storage write error";
        Exception expectedCause = new IllegalStateException("Invalid state");

        try {
            throw new StorageException(expectedMessage, expectedCause);
        } catch (StorageException e) {
            assertEquals(expectedMessage, e.getMessage());

<img src="/img/tutorial/response-status-code/image01.png">

/// note

Some response codes (see the next section) indicate that the response does not have a body.

FastAPI knows this, and will produce OpenAPI docs that state there is no response body.

///

## About HTTP status codes { #about-http-status-codes }

/// note

If you already know what HTTP status codes are, skip to the next section.

///

        
        // Create state directory for persistent storage
        String homeDir = System.getProperty("user.home");
        this.stateDirectory = Paths.get(homeDir, ".jcifs", "handles");
        try {
            Files.createDirectories(stateDirectory);
        } catch (IOException e) {
            log.error("Failed to create handle state directory", e);
        }
        

   | That repository definition will have a unique id, so we can create a mirror reference for that
   | repository, to be used as an alternate download site. The mirror site will be the preferred
   | server for that repository.
   |-->
  <mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that

#### Http2Connection

This lock guards internal state of each connection. This lock is never held for blocking operations. That means that we acquire the lock, read or write a few fields and release the lock. No I/O and no application-layer callbacks.

#### Http2Stream

import jcifs.SmbSession;
import jcifs.SmbTransport;
import jcifs.SmbTree;

/**
 * Internal SMB session interface providing extended session management capabilities.
 * Defines methods for internal session operations and state management.
 *
 * @author mbechler
 *
 * <p>This interface is intended for internal use.</p>
 */
public interface SmbSessionInternal extends SmbSession {

    /**

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal;

/**
 * Container class for SMB protocol negotiation state.
 * Holds the negotiation request, response, and raw buffer data exchanged
 * between client and server during SMB protocol version negotiation.
 *
 * @author mbechler
 */
public final class SmbNegotiation {

<paramdoc xmlns="http://maven.apache.org/POM/4.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 ../../../../../../../maven-plugin-parameter-documenter/target/generated-site/xsd/paramdoc-1.0.0.xsd ">
  <expressions>
    <expression>
      <syntax>localRepository</syntax>
      <configuration>
        <![CDATA[
      Inside ~/.m2/settings.xml: