src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/gc/parallel/MutableSpace.java

@@ -60,12 +60,12 @@
    public long used() {
       return top().minus(bottom());
    }
 
    /** returns all MemRegions where live objects are */
-   public List/*<MemRegion>*/ getLiveRegions() {
-      List res = new ArrayList();
+   public List<MemRegion> getLiveRegions() {
+      List<MemRegion> res = new ArrayList<>();
       res.add(new MemRegion(bottom(), top()));
       return res;
    }
 
    public void printOn(PrintStream tty) {