--- a/langtools/src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java	Mon May 06 16:22:45 2013 +0200
+++ b/langtools/src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java	Tue May 07 06:39:34 2013 -0700
@@ -1252,8 +1252,17 @@
                 List<Type> ptypes = ((MethodType) consSym.type).getParameterTypes();
                 Type classType = consSym.owner.type;
 
+                // Build lambda parameters
+                // partially cloned from TreeMaker.Params until 8014021 is fixed
+                Symbol owner = owner();
+                ListBuffer<JCVariableDecl> paramBuff = new ListBuffer<JCVariableDecl>();
+                int i = 0;
+                for (List<Type> l = ptypes; l.nonEmpty(); l = l.tail) {
+                    paramBuff.append(make.Param(make.paramName(i++), l.head, owner));
+                }
+                List<JCVariableDecl> params = paramBuff.toList();
+
                 // Make new-class call
-                List<JCVariableDecl> params = make.Params(ptypes, owner());
                 JCNewClass nc = makeNewClass(classType, make.Idents(params));
                 nc.pos = tree.pos;
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/lambda/methodReference/TreeMakerParamsIsGoofy.java	Tue May 07 06:39:34 2013 -0700
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8014023
+ * @summary When a method reference to a local class constructor is contained
+ *          in a method whose number of parameters matches the number of
+ *          constructor parameters compilation fails
+ * @compile TreeMakerParamsIsGoofy.java
+ * @run main TreeMakerParamsIsGoofy
+ */
+
+public class TreeMakerParamsIsGoofy {
+
+    interface III { }
+
+    interface UO {
+        III m(III x);
+    }
+
+    public static void main(String[] args) {
+        class BA implements III {
+            BA(III b) {
+            }
+        }
+
+        ts(BA::new);
+    }
+
+    static void ts(UO ba) {
+    }
+}