--- old/src/share/classes/com/sun/tools/javac/comp/Check.java	2011-10-23 21:53:54.820132229 -0700
+++ new/src/share/classes/com/sun/tools/javac/comp/Check.java	2011-10-23 21:53:54.751285383 -0700
@@ -987,7 +987,7 @@
      *  <i>not</i> final.
      */
     private long implicitEnumFinalFlag(JCTree tree) {
-        if (tree.getTag() != JCTree.CLASSDEF) return 0;
+        if (tree.getTag() != JCTree.Tag.CLASSDEF) return 0;
         class SpecialTreeVisitor extends JCTree.Visitor {
             boolean specialized;
             SpecialTreeVisitor() {
@@ -1099,7 +1099,7 @@
                 // not parameterized at all.
                 if (tree.type.getEnclosingType().isRaw())
                     log.error(tree.pos(), "improperly.formed.type.inner.raw.param");
-                if (tree.clazz.getTag() == JCTree.SELECT)
+                if (tree.clazz.getTag() == JCTree.Tag.SELECT)
                     visitSelectInternal((JCFieldAccess)tree.clazz);
             }
         }
@@ -2413,7 +2413,7 @@
 
         // count them off as they're annotated
         for (JCTree arg : a.args) {
-            if (arg.getTag() != JCTree.ASSIGN) continue; // recovery
+            if (arg.getTag() != JCTree.Tag.ASSIGN) continue; // recovery
             JCAssign assign = (JCAssign) arg;
             Symbol m = TreeInfo.symbol(assign.lhs);
             if (m == null || m.type.isErroneous()) continue;
@@ -2442,12 +2442,12 @@
             a.args.tail == null)
             return;
 
-        if (a.args.head.getTag() != JCTree.ASSIGN) return; // error recovery
+        if (a.args.head.getTag() != JCTree.Tag.ASSIGN) return; // error recovery
         JCAssign assign = (JCAssign) a.args.head;
         Symbol m = TreeInfo.symbol(assign.lhs);
         if (m.name != names.value) return;
         JCTree rhs = assign.rhs;
-        if (rhs.getTag() != JCTree.NEWARRAY) return;
+        if (rhs.getTag() != JCTree.Tag.NEWARRAY) return;
         JCNewArray na = (JCNewArray) rhs;
         Set<Symbol> targets = new HashSet<Symbol>();
         for (JCTree elem : na.elems) {
@@ -2506,7 +2506,7 @@
         try {
             tree.sym.flags_field |= LOCKED;
             for (JCTree def : tree.defs) {
-                if (def.getTag() != JCTree.METHODDEF) continue;
+                if (def.getTag() != JCTree.Tag.METHODDEF) continue;
                 JCMethodDecl meth = (JCMethodDecl)def;
                 checkAnnotationResType(meth.pos(), meth.restype.type);
             }
@@ -2614,7 +2614,7 @@
      */
     int checkOperator(DiagnosticPosition pos,
                        OperatorSymbol operator,
-                       int tag,
+                       JCTree.Tag tag,
                        Type left,
                        Type right) {
         if (operator.opcode == ByteCodes.error) {
@@ -2650,7 +2650,8 @@
      * Check for empty statements after if
      */
     void checkEmptyIf(JCIf tree) {
-        if (tree.thenpart.getTag() == JCTree.SKIP && tree.elsepart == null && lint.isEnabled(LintCategory.EMPTY))
+        if (tree.thenpart.getTag() == JCTree.Tag.SKIP && tree.elsepart == null && 
+                lint.isEnabled(LintCategory.EMPTY))
             log.warning(LintCategory.EMPTY, tree.thenpart.pos(), "empty.if");
     }
 
@@ -2754,7 +2755,7 @@
     }
         // where
         private boolean isCanonical(JCTree tree) {
-            while (tree.getTag() == JCTree.SELECT) {
+            while (tree.getTag() == JCTree.Tag.SELECT) {
                 JCFieldAccess s = (JCFieldAccess) tree;
                 if (s.sym.owner != TreeInfo.symbol(s.selected))
                     return false;