jdk/test/java/lang/Class/forName/modules/src/m3/p3/NoAccess.java
changeset 36511 9d0388c6b336
child 38457 3d019217e322
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/Class/forName/modules/src/m3/p3/NoAccess.java	Thu Mar 17 19:04:16 2016 +0000
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+
+package p3;
+
+import java.io.FilePermission;
+import java.lang.module.Configuration;
+import java.lang.module.ModuleFinder;
+import java.lang.reflect.Layer;
+import java.lang.reflect.Module;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.security.AccessControlException;
+import java.security.Permission;
+import java.util.Set;
+
+public class NoAccess {
+    private static final Module M3 = NoAccess.class.getModule();
+    private static final Path MODS_DIR1 = Paths.get("mods1");
+    private static final Path MODS_DIR2 = Paths.get("mods2");
+    public static void main(String[] args) throws Exception {
+        // disable security manager until Class.forName is called.
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            System.setSecurityManager(null);
+        }
+
+        ModuleFinder finder = ModuleFinder.of(Paths.get("mods1"), Paths.get("mods2"));
+
+        Layer bootLayer = Layer.boot();
+        Configuration parent = bootLayer.configuration();
+
+        Configuration cf = parent.resolveRequiresAndUses(finder,
+                                                         ModuleFinder.empty(),
+                                                         Set.of("m1", "m2"));
+
+        ClassLoader scl = ClassLoader.getSystemClassLoader();
+        Layer layer = bootLayer.defineModulesWithManyLoaders(cf, scl);
+
+        if (sm != null) {
+            System.setSecurityManager(sm);
+        }
+
+        Module m1 = bootLayer.findModule("m1").get();
+        Module m2 = bootLayer.findModule("m2").get();
+        Module m3 = bootLayer.findModule("m3").get();
+
+        findClass(m1, "p1.internal.B");
+        findClass(m2, "p2.C");
+        findClass(m3, "p3.internal.Foo");
+
+        // permissions granted
+        findClass(m1, "p1.A");
+        findClass(m1, "p1.internal.B");
+        findClass(m2, "p2.C");
+        findClass(m3, "p3.internal.Foo");
+
+
+        // m1 and m2 from a different layer
+        m1 = layer.findModule("m1").get();
+        m2 = layer.findModule("m2").get();
+        m3 = layer.findModule("m3").get();
+
+        findClass(m1, "p1.A");
+        findClass(m3, "p3.internal.Foo");
+
+        // no permission
+        Path path = MODS_DIR1.resolve("p1").resolve("internal").resolve("B.class");
+        findClass(m1, "p1.internal.B", new FilePermission(path.toString(), "read"));
+        path = MODS_DIR2.resolve("p2").resolve("C.class");
+        findClass(m2, "p2.C", new FilePermission(path.toString(), "read"));
+    }
+
+    static Class<?> findClass(Module module, String cn) {
+        return findClass(module, cn, null);
+    }
+
+    static Class<?> findClass(Module module, String cn, Permission perm) {
+        try {
+            Class<?> c = Class.forName(module, cn);
+            if (c == null) {
+                throw new RuntimeException(cn + " not found in " + module);
+            }
+            if (c.getModule() != module) {
+                throw new RuntimeException(c.getModule() + " != " + module);
+            }
+            return c;
+        } catch (AccessControlException e) {
+            if (e.getPermission().equals(perm))
+                return null;
+            throw e;
+        }
+    }
+}