--- old/src/java.base/share/classes/java/util/Collection.java 2017-08-23 11:36:44.703017557 -0700
+++ new/src/java.base/share/classes/java/util/Collection.java 2017-08-23 11:36:44.483007910 -0700
@@ -171,10 +171,10 @@
* element
* @throws ClassCastException if the type of the specified element
* is incompatible with this collection
- * (optional)
+ * (optional)
* @throws NullPointerException if the specified element is null and this
* collection does not permit null elements
- * (optional)
+ * (optional)
*/
boolean contains(Object o);
@@ -301,10 +301,10 @@
* @return {@code true} if an element was removed as a result of this call
* @throws ClassCastException if the type of the specified element
* is incompatible with this collection
- * (optional)
+ * (optional)
* @throws NullPointerException if the specified element is null and this
* collection does not permit null elements
- * (optional)
+ * (optional)
* @throws UnsupportedOperationException if the {@code remove} operation
* is not supported by this collection
*/
@@ -323,11 +323,11 @@
* @throws ClassCastException if the types of one or more elements
* in the specified collection are incompatible with this
* collection
- * (optional)
+ * (optional)
* @throws NullPointerException if the specified collection contains one
* or more null elements and this collection does not permit null
* elements
- * (optional),
+ * (optional),
* or if the specified collection is null.
* @see #contains(Object)
*/
@@ -373,11 +373,11 @@
* @throws ClassCastException if the types of one or more elements
* in this collection are incompatible with the specified
* collection
- * (optional)
+ * (optional)
* @throws NullPointerException if this collection contains one or more
* null elements and the specified collection does not support
* null elements
- * (optional),
+ * (optional),
* or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)
@@ -432,11 +432,11 @@
* @throws ClassCastException if the types of one or more elements
* in this collection are incompatible with the specified
* collection
- * (optional)
+ * (optional)
* @throws NullPointerException if this collection contains one or more
* null elements and the specified collection does not permit null
* elements
- * (optional),
+ * (optional),
* or if the specified collection is null
* @see #remove(Object)
* @see #contains(Object)