--- jsr166/src/jdk8/java/util/concurrent/ForkJoinTask.java	2016/06/30 14:17:04	1.2
+++ jsr166/src/jdk8/java/util/concurrent/ForkJoinTask.java	2017/09/26 03:44:53	1.3
@@ -1343,6 +1343,9 @@ public abstract class ForkJoinTask<V> im
         public final void setRawResult(T v) { result = v; }
         public final boolean exec() { runnable.run(); return true; }
         public final void run() { invoke(); }
+        public String toString() {
+            return super.toString() + "[Wrapped task = " + runnable + "]";
+        }
         private static final long serialVersionUID = 5232453952276885070L;
     }
 
@@ -1360,6 +1363,9 @@ public abstract class ForkJoinTask<V> im
         public final void setRawResult(Void v) { }
         public final boolean exec() { runnable.run(); return true; }
         public final void run() { invoke(); }
+        public String toString() {
+            return super.toString() + "[Wrapped task = " + runnable + "]";
+        }
         private static final long serialVersionUID = 5232453952276885070L;
     }
 
@@ -1405,6 +1411,9 @@ public abstract class ForkJoinTask<V> im
             }
         }
         public final void run() { invoke(); }
+        public String toString() {
+            return super.toString() + "[Wrapped task = " + callable + "]";
+        }
         private static final long serialVersionUID = 2838392045355241008L;
     }