--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Thu Nov 08 16:23:55 2018 +0100
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeMaker.java	Thu Nov 08 10:36:06 2018 -0500
@@ -378,7 +378,24 @@
                              List<JCExpression> args,
                              JCClassDecl def)
     {
-        JCNewClass tree = new JCNewClass(encl, typeargs, clazz, args, def);
+        return SpeculativeNewClass(encl, typeargs, clazz, args, def, false);
+    }
+
+    public JCNewClass SpeculativeNewClass(JCExpression encl,
+                             List<JCExpression> typeargs,
+                             JCExpression clazz,
+                             List<JCExpression> args,
+                             JCClassDecl def,
+                             boolean classDefRemoved)
+    {
+        JCNewClass tree = classDefRemoved ?
+                new JCNewClass(encl, typeargs, clazz, args, def) {
+                    @Override
+                    public boolean classDeclRemoved() {
+                        return true;
+                    }
+                } :
+                new JCNewClass(encl, typeargs, clazz, args, def);
         tree.pos = pos;
         return tree;
     }