8072853: SimpleScriptContext used by NashornScriptEngine doesn't completely...

8072853: SimpleScriptContext used by NashornScriptEngine doesn't completely complies to the spec regarding exception throwing
Reviewed-by: psandoz, lagergren

src/share/classes/javax/script/SimpleScriptContext.java

@@ -140,6 +140,7 @@ public class SimpleScriptContext  implements ScriptContext {
      * @throws IllegalArgumentException if the name is empty.
      */
     public Object getAttribute(String name) {
+        checkName(name);
         if (engineScope.containsKey(name)) {
             return getAttribute(name, ENGINE_SCOPE);
         } else if (globalScope != null && globalScope.containsKey(name)) {
@@ -162,7 +163,7 @@ public class SimpleScriptContext  implements ScriptContext {
      * @throws NullPointerException if the name is null.
      */
     public Object getAttribute(String name, int scope) {
-
+        checkName(name);
         switch (scope) {
 
             case ENGINE_SCOPE:
@@ -191,7 +192,7 @@ public class SimpleScriptContext  implements ScriptContext {
      * @throws NullPointerException if the name is null.
      */
     public Object removeAttribute(String name, int scope) {
-
+        checkName(name);
         switch (scope) {
 
             case ENGINE_SCOPE:
@@ -223,7 +224,7 @@ public class SimpleScriptContext  implements ScriptContext {
      * @throws NullPointerException if the name is null.
      */
     public void setAttribute(String name, Object value, int scope) {
-
+        checkName(name);
         switch (scope) {
 
             case ENGINE_SCOPE:
@@ -281,6 +282,7 @@ public class SimpleScriptContext  implements ScriptContext {
      * @throws IllegalArgumentException if name is empty.
      */
     public int getAttributesScope(String name) {
+        checkName(name);
         if (engineScope.containsKey(name)) {
             return ENGINE_SCOPE;
         } else if (globalScope != null && globalScope.containsKey(name)) {
@@ -314,6 +316,13 @@ public class SimpleScriptContext  implements ScriptContext {
         return scopes;
     }
 
+    private void checkName(String name) {
+        Objects.requireNonNull(name);
+        if (name.isEmpty()) {
+            throw new IllegalArgumentException("name cannot be empty");
+        }
+    }
+
     private static List<Integer> scopes;
     static {
         scopes = new ArrayList<Integer>(2);

test/javax/script/SimpleScriptContextNameChecksTest.java

+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 8072853
+ * @summary SimpleScriptContext used by NashornScriptEngine doesn't completely complies to the spec regarding exception throwing
+ * @run testng SimpleScriptContextNameChecksTest
+ */
+
+import java.util.List;
+import java.util.function.Consumer;
+import javax.script.*;
+import org.testng.annotations.Test;
+
+public class SimpleScriptContextNameChecksTest {
+    private List<ScriptEngineFactory> getFactories() {
+        return new ScriptEngineManager().getEngineFactories();
+    }
+
+    private void testAndExpect(Consumer<ScriptContext> c, Class<? extends RuntimeException> clazz) {
+        for (ScriptEngineFactory fac : getFactories()) {
+            ScriptContext sc = fac.getScriptEngine().getContext();
+            String name = fac.getEngineName();
+            try {
+                c.accept(sc);
+                throw new RuntimeException("no exception for " + name);
+            } catch (NullPointerException | IllegalArgumentException e) {
+                if (e.getClass() == clazz) {
+                    System.out.println("got " + e + " as expected for " + name);
+                } else {
+                    throw e;
+                }
+            }
+        }
+    }
+
+    private void testAndExpectIAE(Consumer<ScriptContext> c) {
+        testAndExpect(c, IllegalArgumentException.class);
+    }
+
+    private void testAndExpectNPE(Consumer<ScriptContext> c) {
+        testAndExpect(c, NullPointerException.class);
+    }
+
+    @Test
+    public void getAttributeEmptyName() {
+        testAndExpectIAE(sc -> sc.getAttribute("", ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void getAttributeNullName() {
+        testAndExpectNPE(sc -> sc.getAttribute(null, ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void removeAttributeEmptyName() {
+        testAndExpectIAE(sc -> sc.removeAttribute("", ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void removeAttributeNullName() {
+        testAndExpectNPE(sc -> sc.removeAttribute(null, ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void setAttributeEmptyName() {
+        testAndExpectIAE(sc -> sc.setAttribute("", "value", ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void setAttributeNullName() {
+        testAndExpectNPE(sc -> sc.setAttribute(null, "value", ScriptContext.GLOBAL_SCOPE));
+    }
+
+    @Test
+    public void getAttributesScopeEmptyName() {
+        testAndExpectIAE(sc -> sc.getAttributesScope(""));
+    }
+
+    @Test
+    public void getAttributesScopeNullName() {
+        testAndExpectNPE(sc -> sc.getAttributesScope(null));
+    }
+}