--- old/src/java.base/share/classes/java/lang/Class.java	2018-10-11 17:46:31.940000000 -0700
+++ new/src/java.base/share/classes/java/lang/Class.java	2018-10-11 17:46:31.756000000 -0700
@@ -200,7 +200,8 @@
      * and {@code class}, {@code enum}, {@code interface}, or
      * <code>&#64;</code>{@code interface}, as appropriate), followed
      * by the type's name, followed by an angle-bracketed
-     * comma-separated list of the type's type parameters, if any.
+     * comma-separated list of the type's type parameters, if any,
+     * including informative bounds on the type parameters, if any.
      *
      * A space is used to separate modifiers from one another and to
      * separate any modifiers from the kind of type. The modifiers
@@ -264,7 +265,7 @@
             if (typeparms.length > 0) {
                 StringJoiner sj = new StringJoiner(",", "<", ">");
                 for(TypeVariable<?> typeparm: typeparms) {
-                    sj.add(typeparm.getTypeName());
+                    sj.add(typeVarBounds(typeparm));
                 }
                 sb.append(sj.toString());
             }
@@ -276,6 +277,19 @@
         }
     }
 
+    String typeVarBounds(TypeVariable<?> typeVar) {
+	Type[] bounds = typeVar.getBounds();
+	if (bounds.length == 1 && bounds[0].equals(Object.class)) {
+	    return typeVar.getName();
+	} else {
+	    StringJoiner sj = new StringJoiner(" & ");
+	    for (Type bound : bounds) {
+		sj.add(bound.getTypeName());
+	    }
+	    return typeVar.getName() + " extends " + sj.toString();
+	}
+    }
+
     /**
      * Returns the {@code Class} object associated with the class or
      * interface with the given string name.  Invoking this method is