src/java.base/share/classes/java/util/Optional.java

rev 48216 : 8140281: add no-arg Optional.orElseThrow() as preferred alternative to get()
Reviewed-by: XXX

@@ -135,18 +135,14 @@
     /**
      * If a value is present, returns the value, otherwise throws
      * {@code NoSuchElementException}.
      *
      * @apiNote
-     * The methods {@link #orElse(Object) orElse} and
-     * {@link #orElseGet(Supplier) orElseGet}
-     * are generally preferable to this method, as they return a substitute
-     * value if the value is absent, instead of throwing an exception.
+     * The preferred alternative to this method is {@link #orElseThrow()}.
      *
      * @return the non-{@code null} value described by this {@code Optional}
      * @throws NoSuchElementException if no value is present
-     * @see Optional#isPresent()
      */
     public T get() {
         if (value == null) {
             throw new NoSuchElementException("No value present");
         }

@@ -360,10 +356,25 @@
     public T orElseGet(Supplier<? extends T> supplier) {
         return value != null ? value : supplier.get();
     }
 
     /**
+     * If a value is present, returns the value, otherwise throws
+     * {@code NoSuchElementException}.
+     *
+     * @return the non-{@code null} value described by this {@code Optional}
+     * @throws NoSuchElementException if no value is present
+     * @since 10
+     */
+    public T orElseThrow() {
+        if (value == null) {
+            throw new NoSuchElementException("No value present");
+        }
+        return value;
+    }
+
+    /**
      * If a value is present, returns the value, otherwise throws an exception
      * produced by the exception supplying function.
      *
      * @apiNote
      * A method reference to the exception constructor with an empty argument