return null;
            }

            @Override
            public String getScheme() {
                return null;
            }

            @Override
            public String getServerName() {
                return null;
            }

            @Override
            public int getServerPort() {
                return 0;
            }

            @Override

     *
     * @return the user realm
     */
    public String getUserRealm() {
        return this.userRealm;
    }

    /**
     * Returns the user's principal name.
     *
     * @return the user principal name
     */
    public String getUserPrincipalName() {
        return this.userPrincipalName;
    }

    /**
     * Returns the list of user addresses.
     *

It doesn't return a large `str` containing the data in JSON format (as a string). It returns a Python standard data structure (e.g. a `dict`) with values and sub-values that are all compatible with JSON.

/// note

      return var.toString();
    }

    /** Wraps {@code t} in a {@code TypeVariableKey} if it's a type variable. */
    static @Nullable TypeVariableKey forLookup(Type t) {
      if (t instanceof TypeVariable) {
        return new TypeVariableKey((TypeVariable<?>) t);
      } else {
        return null;
      }
    }

    /**

if (disks not recognized) // Always error.

// Specific checks.
if (all disks online)
  if (all disks return format.json)
     if (jbod consistent)
        if (all disks recognized)
          return
  else
     if (all disks return format.json not found)
        return error
     else (some disks return format.json not found)
        (heal format)
        return
     fi

    static {
        initialize();
    }

    /**
     * Returns a {@link BeanDesc}.
     *
     * @param clazz
     *            the Bean class. Must not be {@literal null}
     * @return {@link BeanDesc}
     */
    public static BeanDesc getBeanDesc(final Class<?> clazz) {
        assertArgumentNotNull("clazz", clazz);

            @Override
            public String getIndexDocumentUpdateIndex() {
                return "fess.update";
            }

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldLang() {
                return "lang";
            }

            @Override

  /**
   * Usually returns {@code null} but, if this {@code Future} has failed, may <i>optionally</i>
   * return the cause of the failure. "Failure" means specifically "completed with an exception"; it
   * does not include "was cancelled." To be explicit: If this method returns a non-null value,
   * then:
   *
   * <ul>
   *   <li>{@code isDone()} must return {@code true}

        // When & Then - test boundary conditions
        // Negative length or offset should not cause issues (len <= 0 returns early)
        assertDoesNotThrow(() -> outputStream.write(data, 0, -1)); // negative length, returns early
        assertDoesNotThrow(() -> outputStream.write(data, 0, 0)); // zero length, returns early

        // These should pass through to the underlying implementation

            delegate.addExcludes(excludes);
        }

        return new ExclusionSetFilter(excludes);
    }

    /**
     * Returns the artifact filter for the standard core artifacts.
     *
     * @see org.apache.maven.ArtifactFilterManager#getCoreArtifactFilter()
     */
    @Override
    public ArtifactFilter getCoreArtifactFilter() {
        return new ExclusionSetFilter(getCoreArtifactExcludes());
    }