diff -r dbe9e82f9d25 -r 905e151a185a src/share/classes/com/sun/tools/doclets/formats/html/AbstractTreeWriter.java
--- a/src/share/classes/com/sun/tools/doclets/formats/html/AbstractTreeWriter.java	Thu Jan 08 16:34:58 2009 -0800
+++ b/src/share/classes/com/sun/tools/doclets/formats/html/AbstractTreeWriter.java	Tue Jan 13 13:27:14 2009 +0000
@@ -96,12 +96,12 @@
      * @param list list of the sub-classes at this level.
      * @param isEnum true if we are generating a tree for enums.
      */
-    protected void generateLevelInfo(ClassDoc parent, List list,
+    protected void generateLevelInfo(ClassDoc parent, List<ClassDoc> list,
             boolean isEnum) {
         if (list.size() > 0) {
             ul();
             for (int i = 0; i < list.size(); i++) {
-                ClassDoc local = (ClassDoc)list.get(i);
+                ClassDoc local = list.get(i);
                 printPartialInfo(local);
                 printExtendsImplements(parent, local);
                 generateLevelInfo(local, classtree.subs(local, isEnum),
@@ -119,9 +119,9 @@
      * other classes in this run will derive from these classes.
      * @param heading Heading for the tree.
      */
-    protected void generateTree(List list, String heading) {
+    protected void generateTree(List<ClassDoc> list, String heading) {
         if (list.size() > 0) {
-            ClassDoc firstClassDoc = (ClassDoc)list.get(0);
+            ClassDoc firstClassDoc = list.get(0);
             printTreeHeading(heading);
             generateLevelInfo(!firstClassDoc.isInterface()? firstClassDoc : null,
                 list,