8177789: fix collections framework links to point to java.util package doc

Reviewed-by: bchristi, martin

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

@@ -62,7 +62,7 @@ import java.util.stream.StreamSupport;
  * a MergeSort, but it does have to be <i>stable</i>.)
  *
  * <p>This class is a member of the
- * <a href="{@docRoot}/../technotes/guides/collections/index.html">
+ * <a href="{@docRoot}/java/util/package-summary.html#CollectionsFramework">
  * Java Collections Framework</a>.
  *
  * @author Josh Bloch
@@ -8899,4 +8899,4 @@ public class Arrays {
 
         return aLength != bLength ? length : -1;
     }
-}
+}