return _instance;
    }

    // ===================================================================================
    //                                                                       Current DBDef
    //                                                                       =============
    @Override
    public String getProjectName() {
        return null;
    }

    @Override

    @BeforeEach
    void resetMocks() {
        Mockito.reset(session, transport, tree);
    }

    // Happy path: isInUse returns the mocked state
    @ParameterizedTest
    @DisplayName("isInUse reflects current mocked state")
    @ValueSource(booleans = { true, false })
    void isInUse_variants(boolean inUse) {
        when(session.isInUse()).thenReturn(inUse);

        boolean result = session.isInUse();

  /**
   * Conditionally sets the count of an element to a new value, as described in {@link
   * #setCount(Object, int)}, provided that the element has the expected current count. If the
   * current count is not {@code oldCount}, no change is made.
   *
   * @param element the element to conditionally set the count of; may be null only if explicitly
   *     allowed by the implementation

   * @return the count of the element before the operation; possibly zero
   * @throws IllegalArgumentException if {@code occurrences} is negative
   */
  /*
   * TODO(cpovirk): remove and removeExactly currently accept null inputs only
   * if occurrences == 0. This satisfies both NullPointerTester and
   * CollectionRemoveTester.testRemove_nullAllowed, but it's not clear that it's

     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

        /** Locale */
        protected final Locale locale;

        /** Index indicating the current style */
        protected int index;

        /**
         * Constructs an instance.
         *
         * @param locale
         *            Locale
         */

     * @author koichik
     */
    protected static class DateFormatIterator implements Iterator<DateFormat> {

        /** Locale */
        protected final Locale locale;

        /** Index indicating the current style */
        protected int index;

        /**
         * Constructs an instance.
         *
         * @param locale
         *            Locale
         */

        return _instance;
    }

    // ===================================================================================
    //                                                                       Current DBDef
    //                                                                       =============
    @Override
    public String getProjectName() {
        return null;
    }

    @Override

        return attemptReconnect(handleInfo, 0, cause);
    }

    /**
     * Perform a single reconnection attempt
     * @param info the handle information
     * @param attempt the current attempt number (0-based)
     * @param originalCause the original exception that triggered reconnection
     * @return a future that completes with success or failure
     */

        return _instance;
    }

    // ===================================================================================
    //                                                                       Current DBDef
    //                                                                       =============
    @Override
    public String getProjectName() {
        return null;
    }

    @Override

  /**
   * Schedules the request to be executed at some point in the future.
   *
   * The [dispatcher][OkHttpClient.dispatcher] defines when the request will run: usually
   * immediately unless there are several other requests currently being executed.
   *
   * This client will later call back `responseCallback` with either an HTTP response or a failure
   * exception.
   *
   * @throws IllegalStateException when the call has already been executed.