6980447: Rhino JavaScript engine code in jdk-7 has to updated with the latest...

6980447: Rhino JavaScript engine code in jdk-7 has to updated with the latest code from Rhino 1.7R3.
Summary: Updating Rhino javascript engine with version 1.7R3. Issue 6427783 (E4X support is missing from Sun's Mozilla JavaScript implementation) is also fixed as a side-effect.
Reviewed-by: alanb, jjh

src/share/classes/com/sun/script/javascript/RhinoScriptEngine.java

@@ -61,26 +61,43 @@ public final class RhinoScriptEngine extends AbstractScriptEngine
     private ScriptEngineFactory factory;
     private InterfaceImplementor implementor;
 
+    private static final int languageVersion = getLanguageVersion();
+    private static final int optimizationLevel = getOptimizationLevel();
     static {
         ContextFactory.initGlobal(new ContextFactory() {
             protected Context makeContext() {
                 Context cx = super.makeContext();
+                cx.setLanguageVersion(languageVersion);
+                cx.setOptimizationLevel(optimizationLevel);
                 cx.setClassShutter(RhinoClassShutter.getInstance());
                 cx.setWrapFactory(RhinoWrapFactory.getInstance());
                 return cx;
             }
-
-            public boolean hasFeature(Context cx, int feature) {
-                // we do not support E4X (ECMAScript for XML)!
-                if (feature == Context.FEATURE_E4X) {
-                    return false;
-                } else {
-                    return super.hasFeature(cx, feature);
-                }
-            }
         });
     }
 
+    private static final String RHINO_JS_VERSION = "rhino.js.version";
+    private static int getLanguageVersion() {
+        int version;
+        String tmp = java.security.AccessController.doPrivileged(
+            new sun.security.action.GetPropertyAction(RHINO_JS_VERSION));
+        if (tmp != null) {
+            version = Integer.parseInt((String)tmp);
+        } else {
+            version = Context.VERSION_1_8;
+        }
+        return version;
+    }
+
+    private static final String RHINO_OPT_LEVEL = "rhino.opt.level";
+    private static int getOptimizationLevel() {
+        int optLevel = -1;
+        // disable optimizer under security manager, for now.
+        if (System.getSecurityManager() == null) {
+            optLevel = Integer.getInteger(RHINO_OPT_LEVEL, -1);
+        }
+        return optLevel;
+    }
 
     /**
      * Creates a new instance of RhinoScriptEngine
@@ -333,6 +350,7 @@ public final class RhinoScriptEngine extends AbstractScriptEngine
         return result instanceof Undefined ? null : result;
     }
 
+    /*
     public static void main(String[] args) throws Exception {
         if (args.length == 0) {
             System.out.println("No file specified");
@@ -347,4 +365,5 @@ public final class RhinoScriptEngine extends AbstractScriptEngine
         engine.eval(r);
         System.out.println(engine.get("x"));
     }
+    */
 }

src/share/classes/com/sun/script/javascript/RhinoScriptEngineFactory.java

@@ -58,11 +58,11 @@ public class RhinoScriptEngineFactory extends ScriptEngineFactoryBase {
         } else if (key.equals(ScriptEngine.ENGINE)) {
             return "Mozilla Rhino";
         } else if (key.equals(ScriptEngine.ENGINE_VERSION)) {
-            return "1.6 release 2";
+            return "1.7 release 3 PRERELEASE";
         } else if (key.equals(ScriptEngine.LANGUAGE)) {
             return "ECMAScript";
         } else if (key.equals(ScriptEngine.LANGUAGE_VERSION)) {
-            return "1.6";
+            return "1.8";
         } else if (key.equals("THREADING")) {
             return "MULTITHREADED";
         } else {
@@ -128,10 +128,12 @@ public class RhinoScriptEngineFactory extends ScriptEngineFactoryBase {
         return ret;
     }
 
+    /*
     public static void main(String[] args) {
         RhinoScriptEngineFactory fact = new RhinoScriptEngineFactory();
         System.out.println(fact.getParameter(ScriptEngine.ENGINE_VERSION));
     }
+    */
 
     private static List<String> names;
     private static List<String> mimeTypes;

src/share/classes/com/sun/script/javascript/RhinoTopLevel.java

@@ -37,15 +37,6 @@ import javax.script.*;
  * @since 1.6
  */
 public final class RhinoTopLevel extends ImporterTopLevel {
-
-    // variables defined always to help Java access from JavaScript
-    private static final String builtinVariables =
-                "var com = Packages.com;                   \n" +
-                "var edu = Packages.edu;                   \n" +
-                "var javax = Packages.javax;               \n" +
-                "var net = Packages.net;                   \n" +
-                "var org = Packages.org;                   \n";
-
     RhinoTopLevel(Context cx, RhinoScriptEngine engine) {
         super(cx);
         this.engine = engine;
@@ -67,9 +58,6 @@ public final class RhinoTopLevel extends ImporterTopLevel {
         String names[] = { "bindings", "scope", "sync"  };
         defineFunctionProperties(names, RhinoTopLevel.class,
                 ScriptableObject.DONTENUM);
-
-        // define built-in variables
-        cx.evaluateString(this, builtinVariables, "<builtin>", 1, null);
     }
 
     /**

src/share/classes/com/sun/tools/script/shell/init.js

@@ -311,9 +311,9 @@ function load(str) {
 	try {
 		engine.eval(reader);
 	} finally {
-		engine.put(engine.FILENAME, oldFilename);	
+		engine.put(engine.FILENAME, oldFilename);
+	        streamClose(stream);
 	}
-	streamClose(stream);
 }
 
 // file system utilities

test/javax/script/E4XErrorTest.java

-/*
- * Copyright (c) 2005, 2008, 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 6346734 6705893
- * @summary We do *not* support E4X (ECMAScript for XML) in our
- * implementation. We want to throw error on XML literals
- * as early as possible rather than at "runtime" - i.e., when
- * engine looks for "XML" constructor.
- */
-
-import javax.script.*;
-import java.util.Locale;
-
-public class E4XErrorTest {
-
-        public static void main(String[] args) throws Exception {
-            ScriptEngineManager manager = new ScriptEngineManager();
-            ScriptEngine jsengine = Helper.getJsEngine(manager);
-            if (jsengine == null) {
-                System.out.println("Warning: No js engine found; test vacuously passes.");
-                return;
-            }
-
-            // The test below depends on the error message content
-            // that is loaded from resource bundles.  So, we force
-            // English Locale to compare correct value..
-            Locale.setDefault(Locale.US);
-
-            try {
-                jsengine.eval("var v = <html></html>;");
-            } catch (ScriptException se) {
-                String msg = se.getMessage();
-                if (msg.indexOf("syntax error") == -1) {
-                    throw new RuntimeException("syntax error expected, got " +
-                                       msg);
-                }
-                return;
-            }
-            // should not reach here.. exception should have been thrown.
-            throw new RuntimeException("Huh! E4X is supported??");
-        }
-}

test/javax/script/VersionTest.java

@@ -32,8 +32,8 @@ import java.io.*;
 
 public class VersionTest  {
 
-        private static final String JS_LANG_VERSION = "1.6";
-        private static final String JS_ENGINE_VERSION = "1.6 release 2";
+        private static final String JS_LANG_VERSION = "1.8";
+        private static final String JS_ENGINE_VERSION = "1.7 release 3 PRERELEASE";
 
         public static void main(String[] args) throws Exception {
             ScriptEngineManager manager = new ScriptEngineManager();