2.x: fix whitespaces

src/main/java/io/reactivex/flowables/GroupedFlowable.java

@@ -31,7 +31,7 @@
  * @see <a href="http://reactivex.io/documentation/operators/groupby.html">ReactiveX documentation: GroupBy</a>
  */
 public abstract class GroupedFlowable<K, T> extends Flowable<T> {
-    
+
     final K key;
 
     /**

src/main/java/io/reactivex/observables/GroupedObservable.java

@@ -31,7 +31,7 @@
  * @see <a href="http://reactivex.io/documentation/operators/groupby.html">ReactiveX documentation: GroupBy</a>
  */
 public abstract class GroupedObservable<K, T> extends Observable<T> {
-    
+
     final K key;
 
     /**

src/main/java/io/reactivex/observers/DisposableMaybeObserver.java

@@ -61,7 +61,7 @@
  * @param <T> the received value type
  */
 public abstract class DisposableMaybeObserver<T> implements MaybeObserver<T>, Disposable {
-    
+
     final AtomicReference<Disposable> s = new AtomicReference<Disposable>();
 
     @Override

src/main/java/io/reactivex/observers/DisposableObserver.java

@@ -64,7 +64,7 @@
  * @param <T> the received value type
  */
 public abstract class DisposableObserver<T> implements Observer<T>, Disposable {
-   
+
     final AtomicReference<Disposable> s = new AtomicReference<Disposable>();
 
     @Override

src/main/java/io/reactivex/observers/DisposableSingleObserver.java

@@ -53,7 +53,7 @@
  * @param <T> the received value type
  */
 public abstract class DisposableSingleObserver<T> implements SingleObserver<T>, Disposable {
-    
+
     final AtomicReference<Disposable> s = new AtomicReference<Disposable>();
 
     @Override

src/test/java/io/reactivex/internal/functions/ObjectHelperTest.java

@@ -33,22 +33,22 @@ public void hashCodeOf() {
     }
 
     @Test
-    public void verifyPositiveInt() throws Exception{
+    public void verifyPositiveInt() throws Exception {
         assertEquals(1, ObjectHelper.verifyPositive(1, "param"));
     }
 
     @Test
-    public void verifyPositiveLong() throws Exception{
+    public void verifyPositiveLong() throws Exception {
         assertEquals(1L, ObjectHelper.verifyPositive(1L, "param"));
     }
 
     @Test(expected = IllegalArgumentException.class)
-    public void verifyPositiveIntFail() throws Exception{
+    public void verifyPositiveIntFail() throws Exception {
         assertEquals(-1, ObjectHelper.verifyPositive(-1, "param"));
     }
 
     @Test(expected = IllegalArgumentException.class)
-    public void verifyPositiveLongFail() throws Exception{
+    public void verifyPositiveLongFail() throws Exception {
         assertEquals(-1L, ObjectHelper.verifyPositive(-1L, "param"));
     }