--- a/nashorn/src/jdk/nashorn/internal/objects/Global.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/Global.java	Fri Jan 17 20:09:47 2014 +0530
@@ -1705,8 +1705,25 @@
             initScripting(env);
         }
 
-        if (Context.DEBUG && System.getSecurityManager() == null) {
-            initDebug();
+        if (Context.DEBUG) {
+            boolean debugOkay;
+            final SecurityManager sm = System.getSecurityManager();
+            if (sm != null) {
+                try {
+                    sm.checkPermission(new RuntimePermission(Context.NASHORN_DEBUG_MODE));
+                    debugOkay = true;
+                } catch (final SecurityException ignored) {
+                    // if no permission, don't initialize Debug object
+                    debugOkay = false;
+                }
+
+            } else {
+                debugOkay = true;
+            }
+
+            if (debugOkay) {
+                initDebug();
+            }
         }
 
         copyBuiltins();

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -85,6 +85,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeEvalError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeEvalError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -55,6 +55,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeRangeError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeRangeError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -55,6 +55,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeReferenceError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeReferenceError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -55,6 +55,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeSyntaxError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeSyntaxError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -55,6 +55,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeTypeError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeTypeError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -55,6 +55,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/objects/NativeURIError.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeURIError.java	Fri Jan 17 20:09:47 2014 +0530
@@ -54,6 +54,10 @@
     @Property(attributes = Attribute.NOT_ENUMERABLE, where = Where.PROTOTYPE)
     public Object message;
 
+    /** Nashorn extension: underlying exception */
+    @Property(attributes = Attribute.NOT_ENUMERABLE)
+    public Object nashornException;
+
     // initialized by nasgen
     private static PropertyMap $nasgenmap$;
 

--- a/nashorn/src/jdk/nashorn/internal/runtime/Context.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/Context.java	Fri Jan 17 20:09:47 2014 +0530
@@ -91,6 +91,11 @@
      */
     public static final String NASHORN_JAVA_REFLECTION = "nashorn.JavaReflection";
 
+    /**
+     * Permission to enable nashorn debug mode.
+     */
+    public static final String NASHORN_DEBUG_MODE = "nashorn.debugMode";
+
     // nashorn load psuedo URL prefixes
     private static final String LOAD_CLASSPATH = "classpath:";
     private static final String LOAD_FX = "fx:";

--- a/nashorn/src/jdk/nashorn/internal/runtime/ECMAException.java	Thu Jan 16 22:50:53 2014 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/ECMAException.java	Fri Jan 17 20:09:47 2014 +0530
@@ -33,7 +33,6 @@
 import jdk.nashorn.api.scripting.NashornException;
 import jdk.nashorn.internal.codegen.CompilerConstants.Call;
 import jdk.nashorn.internal.codegen.CompilerConstants.FieldAccess;
-import jdk.nashorn.internal.objects.NativeError;
 
 /**
  * Exception used to implement ECMAScript "throw" from scripts. The actual thrown

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/trusted/JDK-8032060.js	Fri Jan 17 20:09:47 2014 +0530
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2014, 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-8032060: PropertyMap of Error objects is not stable
+ *
+ * @test
+ * @option -Dnashorn.debug=true
+ * @fork
+ * @run
+ */
+
+function checkMap(e1, e2) {
+    if (! Debug.identical(Debug.map(e1), Debug.map(e2))) {
+        fail("e1 and e2 have different maps");
+    }
+
+    var m1, m2;
+
+    try {
+        throw e1
+    } catch (e) {
+        m1 = Debug.map(e)
+    }
+
+    try {
+        throw e2
+    } catch (e) {
+        m2 = Debug.map(e)
+    }
+
+    if (! Debug.identical(m1, m2)) {
+        fail("e1 and e2 have different maps after being thrown");
+    }
+}
+
+checkMap(new Error(), new Error());
+checkMap(new EvalError(), new EvalError());
+checkMap(new RangeError(), new RangeError());
+checkMap(new ReferenceError(), new ReferenceError());
+checkMap(new SyntaxError(), new SyntaxError());
+checkMap(new TypeError(), new TypeError());
+checkMap(new URIError(), new URIError());
+
+// now try with message param
+checkMap(new Error("x"), new Error("y"));
+checkMap(new EvalError("x"), new EvalError("y"));
+checkMap(new RangeError("x"), new RangeError("y"));
+checkMap(new ReferenceError("x"), new ReferenceError("y"));
+checkMap(new SyntaxError("x"), new SyntaxError("y"));
+checkMap(new TypeError("x"), new TypeError("y"));
+checkMap(new URIError("x"), new URIError("y"));