--- a/src/jdk/nashorn/api/scripting/NashornScriptEngine.java	Tue Jun 21 10:15:20 2016 -0700
+++ b/src/jdk/nashorn/api/scripting/NashornScriptEngine.java	Sat Jun 25 20:03:39 2016 +0100
@@ -319,6 +319,9 @@
         // Create new global instance mirror and associate with the Bindings.
         final ScriptObjectMirror mirror = createGlobalMirror();
         bindings.put(NASHORN_GLOBAL, mirror);
+        // Since we created this global explicitly for the non-default script context we set the
+        // current script context in global permanently so that invokes work as expected. See JDK-8150219
+        mirror.getHomeGlobal().setInitScriptContext(ctxt);
         return mirror.getHomeGlobal();
     }
 

--- a/src/jdk/nashorn/internal/objects/Global.java	Tue Jun 21 10:15:20 2016 -0700
+++ b/src/jdk/nashorn/internal/objects/Global.java	Sat Jun 25 20:03:39 2016 +0100
@@ -928,6 +928,8 @@
     private ThreadLocal<ScriptContext> scontext;
     // current ScriptEngine associated - can be null.
     private ScriptEngine engine;
+    // initial ScriptContext - usually null and only used for special case
+    private volatile ScriptContext initscontext;
 
     // ES6 global lexical scope.
     private final LexicalScope lexicalScope;
@@ -953,9 +955,22 @@
         return scontext.get();
     }
 
+    /**
+     * Set the initial script context
+     * @param ctxt initial script context
+     */
+    public void setInitScriptContext(final ScriptContext ctxt) {
+        this.initscontext = ctxt;
+    }
+
     private ScriptContext currentContext() {
         final ScriptContext sc = scontext != null? scontext.get() : null;
-        return (sc != null)? sc : (engine != null? engine.getContext() : null);
+        if (sc != null) {
+            return sc;
+        } else if (initscontext != null) {
+            return initscontext;
+        }
+        return engine != null? engine.getContext() : null;
     }
 
     @Override

--- a/src/jdk/nashorn/internal/runtime/regexp/RegExpScanner.java	Tue Jun 21 10:15:20 2016 -0700
+++ b/src/jdk/nashorn/internal/runtime/regexp/RegExpScanner.java	Sat Jun 25 20:03:39 2016 +0100
@@ -80,8 +80,17 @@
             this.negLookaheadLevel = negLookaheadLevel;
         }
 
-        boolean isContained(final int group, final int level) {
-            return group == this.negLookaheadGroup && level >= this.negLookaheadLevel;
+        /**
+         * Returns true if this Capture can be referenced from the position specified by the
+         * group and level parameters. This is the case if either the group is not within
+         * a negative lookahead, or the position of the referrer is in the same negative lookahead.
+         *
+         * @param group current negative lookahead group
+         * @param level current negative lokahead level
+         * @return true if this capture group can be referenced from the given position
+         */
+        boolean canBeReferencedFrom(final int group, final int level) {
+            return this.negLookaheadLevel == 0 || (group == this.negLookaheadGroup && level >= this.negLookaheadLevel);
         }
 
     }
@@ -671,8 +680,9 @@
 
                 } else if (decimalValue <= caps.size()) {
                     //  Captures inside a negative lookahead are undefined when referenced from the outside.
-                    if (!caps.get(decimalValue - 1).isContained(negLookaheadGroup, negLookaheadLevel)) {
-                        // Reference to capture in negative lookahead, omit from output buffer.
+                    final Capture capture = caps.get(decimalValue - 1);
+                    if (!capture.canBeReferencedFrom(negLookaheadGroup, negLookaheadLevel)) {
+                        // Outside reference to capture in negative lookahead, omit from output buffer.
                         sb.setLength(sb.length() - 1);
                     } else {
                         // Append backreference to output buffer.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8137240.js	Sat Jun 25 20:03:39 2016 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2016, 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-8137240: Negative lookahead in RegEx breaks backreference
+ *
+ * @test
+ * @run
+ */
+
+
+Assert.assertEquals('aa'.replace(/(a)(?!b)\1/gm, 'c'), 'c');
+
+var result = 'aa'.match(/(a)(?!b)\1/);
+Assert.assertTrue(result.length === 2);
+Assert.assertTrue(result[0] === 'aa');
+Assert.assertTrue(result[1] === 'a');
+
+result = 'aa'.match(/(a)(?!(b))\2(a)/);
+Assert.assertTrue(result.length === 4);
+Assert.assertTrue(result[0] === 'aa');
+Assert.assertTrue(result[1] === 'a');
+Assert.assertTrue(result[2] === undefined);
+Assert.assertTrue(result[3] === 'a');

--- a/test/src/jdk/nashorn/api/scripting/test/ScopeTest.java	Tue Jun 21 10:15:20 2016 -0700
+++ b/test/src/jdk/nashorn/api/scripting/test/ScopeTest.java	Sat Jun 25 20:03:39 2016 +0100
@@ -30,6 +30,8 @@
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;
 import javax.script.Bindings;
+import javax.script.Compilable;
+import javax.script.CompiledScript;
 import javax.script.Invocable;
 import javax.script.ScriptContext;
 import javax.script.ScriptEngine;
@@ -911,4 +913,27 @@
          Object value = ((Invocable)engine).invokeFunction("newfunc");
          assertTrue(((Number)value).intValue() == 42);
     }
+
+    // @bug 8150219 ReferenceError in 1.8.0_72
+    // When we create a Global for a non-default ScriptContext that needs one keep the
+    // ScriptContext associated with the Global so that invoke methods work as expected.
+    @Test
+    public void invokeFunctionWithCustomScriptContextTest() throws Exception {
+        final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
+
+        // create an engine and a ScriptContext, but don't set it as default
+        ScriptContext scriptContext = new SimpleScriptContext();
+
+        // Set some value in the context
+        scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);
+
+        // Evaluate script with custom context and get back a function
+        final String script = "function (c) { return myString.indexOf(c); }";
+        CompiledScript compiledScript = ((Compilable)engine).compile(script);
+        Object func = compiledScript.eval(scriptContext);
+
+        // Invoked function should be able to see context it was evaluated with
+        Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
+        assertTrue(((Number)result).intValue() == 1);
+    }
 }