--- old/src/java.corba/share/classes/com/sun/tools/corba/se/idl/Preprocessor.java	2015-10-07 21:02:12.299471800 +0200
+++ new/src/java.corba/share/classes/com/sun/tools/corba/se/idl/Preprocessor.java	2015-10-07 21:02:12.227471798 +0200
@@ -127,7 +127,7 @@
           else
           {
             alreadyProcessedABranch.pop ();
-            alreadyProcessedABranch.push (new Boolean (true));
+            alreadyProcessedABranch.push (Boolean.TRUE);
             token = scanner.getToken ();
           }
           break;
@@ -328,7 +328,7 @@
       expr = ((Boolean)boolExpr.value ()).booleanValue ();
     else
       expr = ((Number)boolExpr.value ()).longValue () != 0;
-    alreadyProcessedABranch.push (new Boolean (expr));
+    alreadyProcessedABranch.push (expr);
     if (!expr)
       skipToEndiforElse ();
   } // constExpr
@@ -537,12 +537,12 @@
     if (token.equals (Token.Identifier))
       if ((not && symbols.containsKey (token.name)) || (!not && !symbols.containsKey (token.name)))
       {
-        alreadyProcessedABranch.push (new Boolean (false));
+        alreadyProcessedABranch.push (Boolean.FALSE);
         skipToEndiforElse ();
       }
       else
       {
-        alreadyProcessedABranch.push (new Boolean (true));
+        alreadyProcessedABranch.push (Boolean.TRUE);
         match (Token.Identifier);
         if (inParens)
           match (Token.RightParen);
@@ -563,12 +563,12 @@
     if (token.equals (Token.Identifier))
       if ((not && symbols.containsKey (token.name)) || (!not && !symbols.containsKey (token.name)))
       {
-        alreadyProcessedABranch.push (new Boolean (false));
+        alreadyProcessedABranch.push (Boolean.FALSE);
         skipToEndiforElse ();
       }
       else
       {
-        alreadyProcessedABranch.push (new Boolean (true));
+        alreadyProcessedABranch.push (Boolean.TRUE);
         match (Token.Identifier);
       }
     else
@@ -600,7 +600,7 @@
     {
       if (token.equals (Token.Ifdef) || token.equals (Token.Ifndef))
       {
-        alreadyProcessedABranch.push (new Boolean (true));
+        alreadyProcessedABranch.push (Boolean.TRUE);
         skipToEndif ();
       }
       else
@@ -619,7 +619,7 @@
       token = scanner.skipUntil ('#');
       if (token.equals (Token.Ifdef) || token.equals (Token.Ifndef))
       {
-        alreadyProcessedABranch.push (new Boolean (true));
+        alreadyProcessedABranch.push (Boolean.TRUE);
         skipToEndif ();
       }
     }