fixed crashing when removing mods
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@@ -1,12 +1,12 @@
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/**
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* Copyright 2013 Netflix, Inc.
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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@@ -21,19 +21,22 @@ import java.util.concurrent.atomic.AtomicReference;
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import rx.Subscription;
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/**
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* Thread-safe wrapper around Observable Subscription that ensures unsubscribe can be called only once.
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* Thread-safe wrapper around Observable Subscription that ensures unsubscribe
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* can be called only once.
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* <p>
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* Also used to:
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* <p>
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* <ul>
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* <li>allow the AtomicObserver to have access to the subscription in asynchronous execution for checking if unsubscribed occurred without onComplete/onError.</li>
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* <li>allow the AtomicObserver to have access to the subscription in
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* asynchronous execution for checking if unsubscribed occurred without
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* onComplete/onError.</li>
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* <li>handle both synchronous and asynchronous subscribe() execution flows</li>
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* </ul>
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*/
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public final class AtomicObservableSubscription implements Subscription {
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private AtomicReference<Subscription> actualSubscription = new AtomicReference<Subscription>();
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private AtomicBoolean unsubscribed = new AtomicBoolean(false);
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private final AtomicReference<Subscription> actualSubscription = new AtomicReference<>();
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private final AtomicBoolean unsubscribed = new AtomicBoolean(false);
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public AtomicObservableSubscription() {
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@@ -44,16 +47,16 @@ public final class AtomicObservableSubscription implements Subscription {
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}
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/**
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* Wraps the actual subscription once it exists (if it wasn't available when constructed)
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*
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* Wraps the actual subscription once it exists (if it wasn't available when
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* constructed)
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*
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* @param actualSubscription
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* @throws IllegalStateException
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* if trying to set more than once (or use this method after setting via constructor)
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* @throws IllegalStateException if trying to set more than once (or use
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* this method after setting via constructor)
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*/
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public AtomicObservableSubscription wrap(Subscription actualSubscription) {
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if (!this.actualSubscription.compareAndSet(null, actualSubscription)) {
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if (!this.actualSubscription.compareAndSet(null, actualSubscription))
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throw new IllegalStateException("Can not set subscription more than once.");
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}
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return this;
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}
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