8268725: jshell does not support the --enable-native-access option

Reviewed-by: sundar

src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java

@@ -274,6 +274,7 @@ private enum OptionKind {
         ADD_EXPORTS("--add-exports", false),
         ENABLE_PREVIEW("--enable-preview", true),
         SOURCE_RELEASE("-source", true, true, true, false, false),  // virtual option, generated by --enable-preview
+        ENABLE_NATIVE_ACCESS("--enable-native-access", true, true, false, true, true),
         TO_COMPILER("-C", false, false, true, false, false),
         TO_REMOTE_VM("-R", false, false, false, true, false),;
         final String optionFlag;
@@ -363,6 +364,7 @@ private class OptionParserBase {
         private final OptionSpec<String> argAddModules = parser.accepts("add-modules").withRequiredArg();
         private final OptionSpec<String> argAddExports = parser.accepts("add-exports").withRequiredArg();
         private final OptionSpecBuilder  argEnablePreview = parser.accepts("enable-preview");
+        private final OptionSpecBuilder  argEnableNativeAccess = parser.accepts("enable-native-access");
         private final NonOptionArgumentSpec<String> argNonOptions = parser.nonOptions();
 
         private Options opts = new Options();
@@ -471,6 +473,10 @@ Options parse(OptionSet options) {
                         OptionKind.SOURCE_RELEASE.optionFlag,
                         System.getProperty("java.specification.version")));
             }
+            if (options.has(argEnableNativeAccess)) {
+                opts.addAll(OptionKind.ENABLE_NATIVE_ACCESS, List.of(
+                        OptionKind.ENABLE_NATIVE_ACCESS.optionFlag, "ALL-UNNAMED"));
+            }
 
             if (failed) {
                 exitCode = 1;

src/jdk.jshell/share/classes/jdk/internal/jshell/tool/resources/l10n.properties

@@ -207,6 +207,8 @@ where possible options include:\n\
 \    --add-modules <module>(,<module>)*\n\
 \                          Specify modules to resolve, or all modules on the\n\
 \                            module path if <module> is ALL-MODULE-PATHs\n\
+\    --enable-native-access\n\
+\                          Allow code to run restricted native methods\n\
 \    --enable-preview      Allow code to depend on preview features of this release\n\
 \    --startup <file>      One run replacement for the startup definitions\n\
 \    --no-startup          Do not run the startup definitions\n\

test/langtools/jdk/jshell/ToolEnableNativeAccessTest.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2021, 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 8268725
+ * @summary Tests for the --enable-native-access option
+ * @modules jdk.jshell
+ * @run testng ToolEnableNativeAccessTest
+ */
+
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertTrue;
+
+public class ToolEnableNativeAccessTest extends ReplToolTesting {
+
+    @Test
+    public void testOptionDebug() {
+        test(
+                (a) -> assertCommand(a, "/debug b",
+                        "RemoteVM Options: []\n"
+                        + "Compiler options: []"),
+                (a) -> assertCommand(a, "/env --enable-native-access",
+                        "|  Setting new options and restoring state."),
+                (a) -> assertCommandCheckOutput(a, "/debug b", s -> {
+                    assertTrue(s.contains("RemoteVM Options: [--enable-native-access, ALL-UNNAMED]"));
+                    assertTrue(s.contains("Compiler options: []"));
+                })
+        );
+    }
+
+    @Test
+    public void testCommandLineFlag() {
+        test(new String[] {"--enable-native-access"},
+                (a) -> assertCommandCheckOutput(a, "/debug b", s -> {
+                    assertTrue(s.contains("RemoteVM Options: [--enable-native-access, ALL-UNNAMED]"));
+                    assertTrue(s.contains("Compiler options: []"));
+                })
+        );
+    }
+
+}