public T removeListener()

in repository/service/src/main/java/org/apache/karaf/cave/repository/service/maven/DefaultFuture.java [302:322]

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

    public T removeListener(FutureListener<T> listener) {
        if (listener == null) {
            throw new NullPointerException("listener");
        }

        synchronized (lock) {
            if (!ready) {
                if (listener == firstListener) {
                    if (otherListeners != null && !otherListeners.isEmpty()) {
                        firstListener = otherListeners.remove(0);
                    } else {
                        firstListener = null;
                    }
                } else if (otherListeners != null) {
                    otherListeners.remove(listener);
                }
            }
        }

        return (T) this;
    }