--- a/src/jdk/nashorn/internal/runtime/CompiledFunction.java	Tue Jun 02 17:08:13 2015 +0200
+++ b/src/jdk/nashorn/internal/runtime/CompiledFunction.java	Wed Jun 03 10:42:06 2015 +0200
@@ -528,8 +528,9 @@
 
         final int fnParamCountNoCallee = fnParamCount - thisThisIndex;
         final int minParams = Math.min(csParamCount - 1, fnParamCountNoCallee); // callSiteType always has callee, so subtract 1
-        // We must match all incoming parameters, except "this". Starting from 1 to skip "this".
-        for(int i = 1; i < minParams; ++i) {
+        // We must match all incoming parameters, including "this". "this" will usually be Object, but there
+        // are exceptions, e.g. when calling functions with primitive "this" in strict mode or through call/apply.
+        for(int i = 0; i < minParams; ++i) {
             final Type fnType = Type.typeFor(type.parameterType(i + thisThisIndex));
             final Type csType = csIsVarArg ? Type.OBJECT : Type.typeFor(other.parameterType(i + 1));
             if(!fnType.isEquivalentTo(csType)) {

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8066220.js	Wed Jun 03 10:42:06 2015 +0200
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/**
+ * JDK-8066220: Fuzzing bug: MethodHandle bug (Object,Object) != (boolean)Object
+ *
+ * @test
+ * @run
+ */
+
+
+function f() {}
+// Call f with primitive this first, then as constructor
+f.call(1);
+new f();
+
+// Same as above in strict mode
+eval('"use strict"; function e() { print(typeof this); } e.call(1); new e();');

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8066220.js.EXPECTED	Wed Jun 03 10:42:06 2015 +0200
@@ -0,0 +1,2 @@
+number
+object