ReactiveX
diff --git a/‎src/jmh/java/io/reactivex/BlockingGetPerf.java
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+2-2Lines changed: 2 additions & 2 deletions b/‎src/jmh/java/io/reactivex/BlockingGetPerf.java
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+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎src/main/java/io/reactivex/Completable.java
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-46Lines changed: 0 additions & 46 deletions b/‎src/main/java/io/reactivex/Completable.java
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-46Lines changed: 0 additions & 46 deletions
diff --git a/‎src/main/java/io/reactivex/Flowable.java
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+4-46Lines changed: 4 additions & 46 deletions b/‎src/main/java/io/reactivex/Flowable.java
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+4-46Lines changed: 4 additions & 46 deletions
diff --git a/‎src/main/java/io/reactivex/Maybe.java
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+5-28Lines changed: 5 additions & 28 deletions b/‎src/main/java/io/reactivex/Maybe.java
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+5-28Lines changed: 5 additions & 28 deletions
diff --git a/‎src/main/java/io/reactivex/Observable.java
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+4-39Lines changed: 4 additions & 39 deletions b/‎src/main/java/io/reactivex/Observable.java
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+4-39Lines changed: 4 additions & 39 deletions
diff --git a/‎src/main/java/io/reactivex/Single.java
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-23Lines changed: 0 additions & 23 deletions b/‎src/main/java/io/reactivex/Single.java
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diff --git a/‎src/main/java/io/reactivex/internal/observers/BlockingMultiObserver.java
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-43Lines changed: 0 additions & 43 deletions b/‎src/main/java/io/reactivex/internal/observers/BlockingMultiObserver.java
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@@ -78,7 +78,7 @@ public Object maybe() {
     }
 
     @Benchmark
-    public Object completable() {
-        return completable.blockingGet();
+    public void completable() {
+        completable.blockingAwait();
     }
 }
@@ -1232,52 +1232,6 @@ public final boolean blockingAwait(long timeout, TimeUnit unit) {
         return observer.blockingAwait(timeout, unit);
     }
 
-    /**
-     * Subscribes to this Completable instance and blocks until it terminates, then returns null or
-     * the emitted exception if any.
-     * <p>
-     * <img width="640" height="435" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/Completable.blockingGet.png" alt="">
-     * <dl>
-     *  <dt><b>Scheduler:</b></dt>
-     *  <dd>{@code blockingGet} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     * @return the throwable if this terminated with an error, null otherwise
-     * @throws RuntimeException that wraps an InterruptedException if the wait is interrupted
-     */
-    @Nullable
-    @CheckReturnValue
-    @SchedulerSupport(SchedulerSupport.NONE)
-    public final Throwable blockingGet() {
-        BlockingMultiObserver<Void> observer = new BlockingMultiObserver<Void>();
-        subscribe(observer);
-        return observer.blockingGetError();
-    }
-
-    /**
-     * Subscribes to this Completable instance and blocks until it terminates or the specified timeout
-     * elapses, then returns null for normal termination or the emitted exception if any.
-     * <p>
-     * <img width="640" height="348" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/Completable.blockingGet.t.png" alt="">
-     * <dl>
-     *  <dt><b>Scheduler:</b></dt>
-     *  <dd>{@code blockingGet} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     * @param timeout the timeout value
-     * @param unit the time unit
-     * @return the throwable if this terminated with an error, null otherwise
-     * @throws RuntimeException that wraps an InterruptedException if the wait is interrupted or
-     * TimeoutException if the specified timeout elapsed before it
-     */
-    @Nullable
-    @CheckReturnValue
-    @SchedulerSupport(SchedulerSupport.NONE)
-    public final Throwable blockingGet(long timeout, TimeUnit unit) {
-        ObjectHelper.requireNonNull(unit, "unit is null");
-        BlockingMultiObserver<Void> observer = new BlockingMultiObserver<Void>();
-        subscribe(observer);
-        return observer.blockingGetError(timeout, unit);
-    }
-
     /**
      * Subscribes to this Completable only once, when the first CompletableObserver
      * subscribes to the result Completable, caches its terminal event
 
@@ -14686,8 +14686,7 @@ public final Flowable<T> startWithArray(T... items) {
     @BackpressureSupport(BackpressureKind.UNBOUNDED_IN)
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe() {
-        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING,
-                Functions.EMPTY_ACTION, FlowableInternalHelper.RequestMax.INSTANCE);
+        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -14716,8 +14715,7 @@ public final Disposable subscribe() {
     @BackpressureSupport(BackpressureKind.UNBOUNDED_IN)
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext) {
-        return subscribe(onNext, Functions.ON_ERROR_MISSING,
-                Functions.EMPTY_ACTION, FlowableInternalHelper.RequestMax.INSTANCE);
+        return subscribe(onNext, Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -14747,7 +14745,7 @@ public final Disposable subscribe(Consumer<? super T> onNext) {
     @BackpressureSupport(BackpressureKind.UNBOUNDED_IN)
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError) {
-        return subscribe(onNext, onError, Functions.EMPTY_ACTION, FlowableInternalHelper.RequestMax.INSTANCE);
+        return subscribe(onNext, onError, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -14782,51 +14780,11 @@ public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super T
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError,
             Action onComplete) {
-        return subscribe(onNext, onError, onComplete, FlowableInternalHelper.RequestMax.INSTANCE);
-    }
-
-    /**
-     * Subscribes to a Publisher and provides callbacks to handle the items it emits and any error or
-     * completion notification it issues.
-     * <dl>
-     *  <dt><b>Backpressure:</b></dt>
-     *  <dd>The operator consumes the source {@code Publisher} in an unbounded manner (i.e., no
-     *  backpressure is applied to it).</dd>
-     *  <dt><b>Scheduler:</b></dt>
-     *  <dd>{@code subscribe} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     *
-     * @param onNext
-     *             the {@code Consumer<T>} you have designed to accept emissions from the Publisher
-     * @param onError
-     *             the {@code Consumer<Throwable>} you have designed to accept any error notification from the
-     *             Publisher
-     * @param onComplete
-     *             the {@code Action} you have designed to accept a completion notification from the
-     *             Publisher
-     * @param onSubscribe
-     *             the {@code Consumer} that receives the upstream's Subscription
-     * @return a {@link Disposable} reference with which the caller can stop receiving items before
-     *         the Publisher has finished sending them
-     * @throws NullPointerException
-     *             if {@code onNext} is null, or
-     *             if {@code onError} is null, or
-     *             if {@code onComplete} is null, or
-     *             if {@code onSubscribe} is null
-     * @see <a href="https://reactivex.io/documentation/operators/subscribe.html">ReactiveX operators documentation: Subscribe</a>
-     */
-    @CheckReturnValue
-    @NonNull
-    @BackpressureSupport(BackpressureKind.SPECIAL)
-    @SchedulerSupport(SchedulerSupport.NONE)
-    public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError,
-            Action onComplete, Consumer<? super Subscription> onSubscribe) {
         ObjectHelper.requireNonNull(onNext, "onNext is null");
         ObjectHelper.requireNonNull(onError, "onError is null");
         ObjectHelper.requireNonNull(onComplete, "onComplete is null");
-        ObjectHelper.requireNonNull(onSubscribe, "onSubscribe is null");
 
-        LambdaSubscriber<T> ls = new LambdaSubscriber<T>(onNext, onError, onComplete, onSubscribe);
+        LambdaSubscriber<T> ls = new LambdaSubscriber<T>(onNext, onError, onComplete, FlowableInternalHelper.RequestMax.INSTANCE);
 
         subscribe(ls);
 
 
@@ -2489,13 +2489,9 @@ public final Single<Long> count() {
     }
 
     /**
-     * Returns a Maybe that emits the item emitted by the source Maybe or a specified default item
+     * Returns a Single that emits the item emitted by the source Maybe or a specified default item
      * if the source Maybe is empty.
      * <p>
-     * Note that the result Maybe is semantically equivalent to a {@code Single}, since it's guaranteed
-     * to emit exactly one item or an error. See {@link #toSingle(Object)} for a method with equivalent
-     * behavior which returns a {@code Single}.
-     * <p>
      * <img width="640" height="305" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/defaultIfEmpty.png" alt="">
      * <dl>
      *  <dt><b>Scheduler:</b></dt>
@@ -2504,16 +2500,16 @@ public final Single<Long> count() {
      *
      * @param defaultItem
      *            the item to emit if the source Maybe emits no items
-     * @return a Maybe that emits either the specified default item if the source Maybe emits no
-     *         items, or the items emitted by the source Maybe
+     * @return a Single that emits either the specified default item if the source Maybe emits no
+     *         item, or the item emitted by the source Maybe
      * @see <a href="https://reactivex.io/documentation/operators/defaultifempty.html">ReactiveX operators documentation: DefaultIfEmpty</a>
      */
     @CheckReturnValue
     @NonNull
     @SchedulerSupport(SchedulerSupport.NONE)
-    public final Maybe<T> defaultIfEmpty(T defaultItem) {
+    public final Single<T> defaultIfEmpty(T defaultItem) {
         ObjectHelper.requireNonNull(defaultItem, "defaultItem is null");
-        return switchIfEmpty(just(defaultItem));
+        return RxJavaPlugins.onAssembly(new MaybeToSingle<T>(this, defaultItem));
     }
 
     /**
@@ -3619,25 +3615,6 @@ public final Observable<T> toObservable() {
         return RxJavaPlugins.onAssembly(new MaybeToObservable<T>(this));
     }
 
-    /**
-     * Converts this Maybe into a Single instance composing disposal
-     * through and turning an empty Maybe into a Single that emits the given
-     * value through onSuccess.
-     * <dl>
-     *  <dt><b>Scheduler:</b></dt>
-     *  <dd>{@code toSingle} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     * @param defaultValue the default item to signal in Single if this Maybe is empty
-     * @return the new Single instance
-     */
-    @CheckReturnValue
-    @NonNull
-    @SchedulerSupport(SchedulerSupport.NONE)
-    public final Single<T> toSingle(T defaultValue) {
-        ObjectHelper.requireNonNull(defaultValue, "defaultValue is null");
-        return RxJavaPlugins.onAssembly(new MaybeToSingle<T>(this, defaultValue));
-    }
-
     /**
      * Converts this Maybe into a Single instance composing disposal
      * through and turning an empty Maybe into a signal of NoSuchElementException.
 
@@ -12106,7 +12106,7 @@ public final Observable<T> startWithArray(T... items) {
      */
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe() {
-        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION, Functions.emptyConsumer());
+        return subscribe(Functions.emptyConsumer(), Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -12131,7 +12131,7 @@ public final Disposable subscribe() {
     @CheckReturnValue
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext) {
-        return subscribe(onNext, Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION, Functions.emptyConsumer());
+        return subscribe(onNext, Functions.ON_ERROR_MISSING, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -12157,7 +12157,7 @@ public final Disposable subscribe(Consumer<? super T> onNext) {
     @CheckReturnValue
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError) {
-        return subscribe(onNext, onError, Functions.EMPTY_ACTION, Functions.emptyConsumer());
+        return subscribe(onNext, onError, Functions.EMPTY_ACTION);
     }
 
     /**
@@ -12188,46 +12188,11 @@ public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super T
     @SchedulerSupport(SchedulerSupport.NONE)
     public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError,
             Action onComplete) {
-        return subscribe(onNext, onError, onComplete, Functions.emptyConsumer());
-    }
-
-    /**
-     * Subscribes to an ObservableSource and provides callbacks to handle the items it emits and any error or
-     * completion notification it issues.
-     * <dl>
-     *  <dt><b>Scheduler:</b></dt>
-     *  <dd>{@code subscribe} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     *
-     * @param onNext
-     *             the {@code Consumer<T>} you have designed to accept emissions from the ObservableSource
-     * @param onError
-     *             the {@code Consumer<Throwable>} you have designed to accept any error notification from the
-     *             ObservableSource
-     * @param onComplete
-     *             the {@code Action} you have designed to accept a completion notification from the
-     *             ObservableSource
-     * @param onSubscribe
-     *             the {@code Consumer} that receives the upstream's Disposable
-     * @return a {@link Disposable} reference with which the caller can stop receiving items before
-     *         the ObservableSource has finished sending them
-     * @throws NullPointerException
-     *             if {@code onNext} is null, or
-     *             if {@code onError} is null, or
-     *             if {@code onComplete} is null, or
-     *             if {@code onSubscribe} is null
-     * @see <a href="https://reactivex.io/documentation/operators/subscribe.html">ReactiveX operators documentation: Subscribe</a>
-     */
-    @CheckReturnValue
-    @SchedulerSupport(SchedulerSupport.NONE)
-    public final Disposable subscribe(Consumer<? super T> onNext, Consumer<? super Throwable> onError,
-            Action onComplete, Consumer<? super Disposable> onSubscribe) {
         ObjectHelper.requireNonNull(onNext, "onNext is null");
         ObjectHelper.requireNonNull(onError, "onError is null");
         ObjectHelper.requireNonNull(onComplete, "onComplete is null");
-        ObjectHelper.requireNonNull(onSubscribe, "onSubscribe is null");
 
-        LambdaObserver<T> ls = new LambdaObserver<T>(onNext, onError, onComplete, onSubscribe);
+        LambdaObserver<T> ls = new LambdaObserver<T>(onNext, onError, onComplete, Functions.emptyConsumer());
 
         subscribe(ls);
 
 
@@ -3850,29 +3850,6 @@ public final <R> R to(@NonNull SingleConverter<T, ? extends R> converter) {
         return ObjectHelper.requireNonNull(converter, "converter is null").apply(this);
     }
 
-    /**
-     * Returns a {@link Completable} that discards result of the {@link Single}
-     * and calls {@code onComplete} when this source {@link Single} calls
-     * {@code onSuccess}. Error terminal event is propagated.
-     * <p>
-     * <img width="640" height="436" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/Single.toCompletable.png" alt="">
-     * <dl>
-     * <dt><b>Scheduler:</b></dt>
-     * <dd>{@code toCompletable} does not operate by default on a particular {@link Scheduler}.</dd>
-     * </dl>
-     *
-     * @return a {@link Completable} that calls {@code onComplete} on it's subscriber when the source {@link Single}
-     *         calls {@code onSuccess}.
-     * @since 2.0
-     * @deprecated see {@link #ignoreElement()} instead, will be removed in 3.0
-     */
-    @CheckReturnValue
-    @SchedulerSupport(SchedulerSupport.NONE)
-    @Deprecated
-    public final Completable toCompletable() {
-        return RxJavaPlugins.onAssembly(new CompletableFromSingle<T>(this));
-    }
-
     /**
      * Returns a {@link Completable} that ignores the success value of this {@link Single}
      * and calls {@code onComplete} instead on the returned {@code Completable}.
 
@@ -19,8 +19,6 @@
 import io.reactivex.disposables.Disposable;
 import io.reactivex.internal.util.*;
 
-import static io.reactivex.internal.util.ExceptionHelper.timeoutMessage;
-
 /**
  * A combined Observer that awaits the success or error signal via a CountDownLatch.
  * @param <T> the value type
@@ -119,47 +117,6 @@ public T blockingGet(T defaultValue) {
         return v != null ? v : defaultValue;
     }
 
-    /**
-     * Block until the latch is counted down and return the error received or null if no
-     * error happened.
-     * @return the error received or null
-     */
-    public Throwable blockingGetError() {
-        if (getCount() != 0) {
-            try {
-                BlockingHelper.verifyNonBlocking();
-                await();
-            } catch (InterruptedException ex) {
-                dispose();
-                return ex;
-            }
-        }
-        return error;
-    }
-
-    /**
-     * Block until the latch is counted down and return the error received or
-     * when the wait is interrupted or times out, null otherwise.
-     * @param timeout the timeout value
-     * @param unit the time unit
-     * @return the error received or null
-     */
-    public Throwable blockingGetError(long timeout, TimeUnit unit) {
-        if (getCount() != 0) {
-            try {
-                BlockingHelper.verifyNonBlocking();
-                if (!await(timeout, unit)) {
-                    dispose();
-                    throw ExceptionHelper.wrapOrThrow(new TimeoutException(timeoutMessage(timeout, unit)));
-                }
-            } catch (InterruptedException ex) {
-                dispose();
-                throw ExceptionHelper.wrapOrThrow(ex);
-            }
-        }
-        return error;
-    }
-
     /**
      * Block until the observer terminates and return true; return false if
      * the wait times out.
Original file line number	Diff line number	Diff line change
`@@ -78,7 +78,7 @@ public Object maybe() {`
`78`	`78`	`}`
`79`	`79`
`80`	`80`	`@Benchmark`
`81`		`- public Object completable() {`
`82`		`- return completable.blockingGet();`
	`81`	`+ public void completable() {`
	`82`	`+ completable.blockingAwait();`
`83`	`83`	`}`
`84`	`84`	`}`