/*
* Copyright (c) 2015, 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 test;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Layer;
import java.lang.reflect.Method;
import java.lang.reflect.Module;
/**
* Test access to public/non-public members of public/non-public classes in
* exported and non-exported packages.
*/
public class Main {
public static void main(String[] args) throws Exception {
testPublicClassInExportedPackage();
testNonPublicClassInExportedPackage();
testPublicClassInNonExportedPackage();
testNonPublicClassInNonExportedPackage();
}
static void testPublicClassInExportedPackage() throws Exception {
Module thisModule = Main.class.getModule();
Module targetModule = getTargetModule();
assertTrue(targetModule.isExported("p1"));
assertTrue(targetModule.isExported("p1", thisModule));
assertTrue(targetModule.isExported("p1", targetModule));
assertFalse(targetModule.isOpen("p1"));
assertFalse(targetModule.isOpen("p1", thisModule));
assertTrue(targetModule.isOpen("p1", targetModule));
Class<?> clazz = Class.forName("p1.Public");
Constructor<?> ctor1 = clazz.getConstructor(); // public
Constructor<?> ctor2 = clazz.getDeclaredConstructor(Void.class); // non-public
Field f1 = clazz.getField("f1"); // public
Field f2 = clazz.getDeclaredField("f2"); // non-public
Method m1 = clazz.getMethod("foo"); // public
Method m2 = clazz.getDeclaredMethod("bar"); // non-public
tryAccessConstructor(ctor1, true);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, true);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, true);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(ctor2, false);
trySetAccessible(m1, true);
trySetAccessible(m2, false);
trySetAccessible(f1, true);
trySetAccessible(f2, false);
targetAddOpens("p1", thisModule);
tryAccessConstructor(ctor1, true);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, true);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, true);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(ctor2, true);
trySetAccessible(m1, true);
trySetAccessible(m2, true);
trySetAccessible(f1, true);
trySetAccessible(f2, true);
}
static void testNonPublicClassInExportedPackage() throws Exception {
Module thisModule = Main.class.getModule();
Module targetModule = getTargetModule();
assertTrue(targetModule.isExported("p2"));
assertTrue(targetModule.isExported("p2", thisModule));
assertTrue(targetModule.isExported("p2", targetModule));
assertFalse(targetModule.isOpen("p2"));
assertFalse(targetModule.isOpen("p2", thisModule));
assertTrue(targetModule.isOpen("p1", targetModule));
Class<?> clazz = Class.forName("p2.NonPublic");
Constructor<?> ctor1 = clazz.getConstructor();
Constructor<?> ctor2 = clazz.getDeclaredConstructor(Void.class);
Field f1 = clazz.getField("f1"); // public
Field f2 = clazz.getDeclaredField("f2"); // non-public
Method m1 = clazz.getMethod("foo"); // public
Method m2 = clazz.getDeclaredMethod("bar"); // non-public
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, false);
trySetAccessible(ctor2, false);
trySetAccessible(m1, false);
trySetAccessible(m2, false);
trySetAccessible(f1, false);
trySetAccessible(f2, false);
targetAddExports("p2", thisModule);
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, false);
trySetAccessible(ctor2, false);
trySetAccessible(m1, false);
trySetAccessible(m2, false);
trySetAccessible(f1, false);
trySetAccessible(f2, false);
targetAddOpens("p2", thisModule);
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(ctor2, true);
trySetAccessible(m1, true);
trySetAccessible(m2, true);
trySetAccessible(f1, true);
trySetAccessible(f2, true);
}
static void testPublicClassInNonExportedPackage() throws Exception {
Module thisModule = Main.class.getModule();
Module targetModule = getTargetModule();
assertFalse(targetModule.isExported("q1"));
assertFalse(targetModule.isExported("q1", thisModule));
assertTrue(targetModule.isExported("q1", targetModule));
assertFalse(targetModule.isOpen("q1"));
assertFalse(targetModule.isOpen("q1", thisModule));
assertTrue(targetModule.isOpen("q1", targetModule));
Class<?> clazz = Class.forName("q1.Public");
Constructor<?> ctor1 = clazz.getConstructor(); // public
Constructor<?> ctor2 = clazz.getDeclaredConstructor(Void.class); // non-public
Field f1 = clazz.getField("f1"); // public
Field f2 = clazz.getDeclaredField("f2"); // non-public
Method m1 = clazz.getMethod("foo"); // public
Method m2 = clazz.getDeclaredMethod("bar"); // non-public
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, false);
trySetAccessible(ctor2, false);
trySetAccessible(m1, false);
trySetAccessible(m2, false);
trySetAccessible(f1, false);
trySetAccessible(f2, false);
targetAddExports("q1", thisModule);
tryAccessConstructor(ctor1, true);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, true);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, true);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(ctor2, false);
trySetAccessible(m1, true);
trySetAccessible(m2, false);
trySetAccessible(f1, true);
trySetAccessible(f2, false);
targetAddOpens("q1", thisModule);
tryAccessConstructor(ctor1, true);
tryAccessConstructor(ctor1, false);
tryAccessMethod(m1, true);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, true);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(ctor2, true);
trySetAccessible(m1, true);
trySetAccessible(m2, true);
trySetAccessible(f1, true);
trySetAccessible(f2, true);
}
static void testNonPublicClassInNonExportedPackage() throws Exception {
Module thisModule = Main.class.getModule();
Module targetModule = getTargetModule();
assertFalse(targetModule.isExported("q2"));
assertFalse(targetModule.isExported("q2", thisModule));
assertTrue(targetModule.isExported("q2", targetModule));
assertFalse(targetModule.isOpen("q2"));
assertFalse(targetModule.isOpen("q2", thisModule));
assertTrue(targetModule.isOpen("q2", targetModule));
Class<?> clazz = Class.forName("q2.NonPublic");
Constructor<?> ctor1 = clazz.getConstructor(); // public
Constructor<?> ctor2 = clazz.getDeclaredConstructor(Void.class); // non-public
Field f1 = clazz.getField("f1"); // public
Field f2 = clazz.getDeclaredField("f2"); // non-public
Method m1 = clazz.getMethod("foo"); // public
Method m2 = clazz.getDeclaredMethod("bar"); // non-public
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, false);
trySetAccessible(ctor2, false);
trySetAccessible(m1, false);
trySetAccessible(m2, false);
trySetAccessible(f1, false);
trySetAccessible(f2, false);
targetAddExports("q2", thisModule);
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, false);
trySetAccessible(ctor2, false);
trySetAccessible(m1, false);
trySetAccessible(m2, false);
trySetAccessible(f1, false);
trySetAccessible(f2, false);
targetAddOpens("q2", thisModule);
tryAccessConstructor(ctor1, false);
tryAccessConstructor(ctor2, false);
tryAccessMethod(m1, false);
tryAccessMethod(m2, false);
tryAccessObjectField(f1, false);
tryAccessObjectField(f2, false);
trySetAccessible(ctor1, true);
trySetAccessible(m1, true);
trySetAccessible(m2, true);
trySetAccessible(f1, true);
trySetAccessible(f2, true);
}
static Module getTargetModule() {
return Layer.boot().findModule("target").get();
}
static void tryAccessConstructor(Constructor<?> ctor, boolean shouldSucceed) {
try {
ctor.newInstance();
assertTrue(shouldSucceed);
} catch (Exception e) {
assertFalse(shouldSucceed);
}
}
static void tryAccessMethod(Method method, boolean shouldSucceed) {
try {
method.invoke(null);
assertTrue(shouldSucceed);
} catch (Exception e) {
e.printStackTrace();
assertFalse(shouldSucceed);
}
}
static void tryAccessObjectField(Field f, boolean shouldSucceed) {
try {
f.get(null);
assertTrue(shouldSucceed);
} catch (Exception e) {
assertFalse(shouldSucceed);
}
try {
f.set(null, new Object());
assertTrue(shouldSucceed);
} catch (Exception e) {
assertFalse(shouldSucceed);
}
}
static void trySetAccessible(AccessibleObject ao, boolean shouldSucceed) {
try {
ao.setAccessible(true);
assertTrue(shouldSucceed);
} catch (Exception e) {
assertFalse(shouldSucceed);
}
}
/**
* Update target module to export a package to the given module.
*/
static void targetAddExports(String pn, Module who) throws Exception {
Class<?> helper = Class.forName("p1.Helper");
Method m = helper.getMethod("addExports", String.class, Module.class);
m.invoke(null, pn, who);
}
/**
* Update target module to open a package to the given module.
*/
static void targetAddOpens(String pn, Module who) throws Exception {
Class<?> helper = Class.forName("p1.Helper");
Method m = helper.getMethod("addOpens", String.class, Module.class);
m.invoke(null, pn, who);
}
static void assertTrue(boolean expr) {
if (!expr) throw new RuntimeException();
}
static void assertFalse(boolean expr) {
assertTrue(!expr);
}
}