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

rev 48215 : 8060192: Add default method <A> A[] Collection.toArray(IntFunction<A[]> generator)
Reviewed-by: martin, forax, psandoz

*** 4344,4353 ****
--- 4344,4360 ----
                  a[size] = null;
              return a;
          }
  
          @Override
+         public <T> T[] toArray(IntFunction<T[]> generator) {
+             T[] r = generator.apply(a.length);
+             System.arraycopy(a, 0, r, 0, a.length);
+             return r;
+         }
+ 
+         @Override
          public E get(int index) {
              return a[index];
          }
  
          @Override