private void ensureIdle()

in src/main/java/org/apache/commons/pool3/impl/GenericObjectPool.java [635:659]

• 19 lines of code
• 9 McCabe index (conditional complexity)

    private void ensureIdle(final int idleCount, final boolean always) throws E {
        if (idleCount < 1 || isClosed() || !always && !idleObjects.hasTakeWaiters()) {
            return;
        }

        while (idleObjects.size() < idleCount) {
            final PooledObject<T> p = create(getMaxWaitDuration());
            if (PooledObject.isNull(p)) {
                // Can't create objects, no reason to think another call to
                // create will work. Give up.
                break;
            }
            if (getLifo()) {
                idleObjects.addFirst(p);
            } else {
                idleObjects.addLast(p);
            }
        }
        if (isClosed()) {
            // Pool closed while object was being added to idle objects.
            // Make sure the returned object is destroyed rather than left
            // in the idle object pool (which would effectively be a leak)
            clear();
        }
    }