1.x: increase coverage of internal utils, remove unused/unnecessary items (ReactiveX#4119)

* 1.x: increase coverage of internal utils, remove unused/unnecessary
items

* fix wrong assertion

Author: akarnokd

src/main/java/rx/Observable.java

@@ -9158,7 +9158,7 @@ static <T> Subscription subscribe(Subscriber<? super T> subscriber, Observable<T
             Exceptions.throwIfFatal(e);
             // in case the subscriber can't listen to exceptions anymore
             if (subscriber.isUnsubscribed()) {
-                RxJavaPluginUtils.handleException(RxJavaHooks.onObservableError(e));
+                RxJavaHooks.onError(RxJavaHooks.onObservableError(e));
             } else {
                 // if an unhandled error occurs executing the onSubscribe we will propagate it
                 try {

src/main/java/rx/internal/operators/BlockingOperatorLatest.java

@@ -15,14 +15,12 @@
  */
 package rx.internal.operators;
 
-import java.util.Iterator;
-import java.util.NoSuchElementException;
+import java.util.*;
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.atomic.AtomicReference;
 
-import rx.Notification;
+import rx.*;
 import rx.Observable;
-import rx.Subscriber;
 import rx.exceptions.Exceptions;
 
 /**

src/main/java/rx/internal/operators/BlockingOperatorMostRecent.java

@@ -15,8 +15,7 @@
  */
 package rx.internal.operators;
 
-import java.util.Iterator;
-import java.util.NoSuchElementException;
+import java.util.*;
 
 import rx.Observable;
 import rx.Subscriber;

src/main/java/rx/internal/operators/BlockingOperatorNext.java

@@ -15,15 +15,12 @@
  */
 package rx.internal.operators;
 
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import java.util.concurrent.ArrayBlockingQueue;
-import java.util.concurrent.BlockingQueue;
+import java.util.*;
+import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import rx.Notification;
+import rx.*;
 import rx.Observable;
-import rx.Subscriber;
 import rx.exceptions.Exceptions;
 
 /**

src/main/java/rx/internal/operators/BlockingOperatorToFuture.java

@@ -15,17 +15,10 @@
  */
 package rx.internal.operators;
 
-import java.util.concurrent.CancellationException;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
+import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicReference;
 
-import rx.Observable;
-import rx.Subscriber;
-import rx.Subscription;
+import rx.*;
 
 /**
  * Returns a Future representing the single value emitted by an Observable.

src/main/java/rx/internal/operators/BlockingOperatorToIterator.java

@@ -15,14 +15,11 @@
  */
 package rx.internal.operators;
 
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.LinkedBlockingQueue;
+import java.util.*;
+import java.util.concurrent.*;
 
-import rx.Notification;
+import rx.*;
 import rx.Observable;
-import rx.Subscriber;
 import rx.exceptions.Exceptions;
 import rx.internal.util.RxRingBuffer;
 

src/main/java/rx/internal/operators/BufferUntilSubscriber.java

@@ -18,8 +18,7 @@
 import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.atomic.AtomicReference;
 
-import rx.Observer;
-import rx.Subscriber;
+import rx.*;
 import rx.functions.Action0;
 import rx.subjects.Subject;
 import rx.subscriptions.Subscriptions;

src/main/java/rx/internal/operators/OnSubscribeAmb.java

@@ -15,16 +15,13 @@
  */
 package rx.internal.operators;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
+import java.util.*;
 import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.atomic.AtomicReference;
 
+import rx.*;
 import rx.Observable;
 import rx.Observable.OnSubscribe;
-import rx.Producer;
-import rx.Subscriber;
 import rx.functions.Action0;
 import rx.subscriptions.Subscriptions;
 

src/main/java/rx/internal/operators/OnSubscribeAutoConnect.java

@@ -17,9 +17,8 @@
 
 import java.util.concurrent.atomic.AtomicInteger;
 
+import rx.*;
 import rx.Observable.OnSubscribe;
-import rx.Subscriber;
-import rx.Subscription;
 import rx.functions.Action1;
 import rx.observables.ConnectableObservable;
 import rx.observers.Subscribers;

src/main/java/rx/internal/operators/OnSubscribeDefer.java

@@ -15,9 +15,8 @@
  */
 package rx.internal.operators;
 
-import rx.Observable;
+import rx.*;
 import rx.Observable.OnSubscribe;
-import rx.Subscriber;
 import rx.exceptions.Exceptions;
 import rx.functions.Func0;
 import rx.observers.Subscribers;