test/hotspot/jtreg/compiler/graalunit/com.oracle.mxtool.junit/com/oracle/mxtool/junit/JLModule.java
--- a/test/hotspot/jtreg/compiler/graalunit/com.oracle.mxtool.junit/com/oracle/mxtool/junit/JLModule.java Mon Oct 07 16:48:42 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,211 +0,0 @@
-/*
- * 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 com.oracle.mxtool.junit;
-
-import java.lang.reflect.Method;
-import java.util.Arrays;
-import java.util.Set;
-
-/**
- * Facade for the {@code java.lang.Module} class introduced in JDK9 that allows tests to be
- * developed against JDK8 but use module logic if deployed on JDK9.
- */
-class JLModule {
-
- private final Object realModule;
-
- JLModule(Object module) {
- this.realModule = module;
- }
-
- private static final Class<?> moduleClass;
- private static final Class<?> layerClass;
-
- private static final Method bootMethod;
- private static final Method modulesMethod;
- private static final Method getModuleMethod;
- private static final Method getUnnamedModuleMethod;
- private static final Method getNameMethod;
- private static final Method getPackagesMethod;
- private static final Method isExportedMethod;
- private static final Method isExported2Method;
- private static final Method addExportsMethod;
- private static final Method addOpensMethod;
- static {
- try {
- moduleClass = findModuleClass();
- Class<?> modulesClass = Class.forName("jdk.internal.module.Modules");
- layerClass = findModuleLayerClass();
- bootMethod = layerClass.getMethod("boot");
- modulesMethod = layerClass.getMethod("modules");
- getModuleMethod = Class.class.getMethod("getModule");
- getUnnamedModuleMethod = ClassLoader.class.getMethod("getUnnamedModule");
- getNameMethod = moduleClass.getMethod("getName");
- getPackagesMethod = moduleClass.getMethod("getPackages");
- isExportedMethod = moduleClass.getMethod("isExported", String.class);
- isExported2Method = moduleClass.getMethod("isExported", String.class, moduleClass);
- addExportsMethod = modulesClass.getDeclaredMethod("addExports", moduleClass, String.class, moduleClass);
- addOpensMethod = getDeclaredMethodOptional(modulesClass, "addOpens", moduleClass, String.class, moduleClass);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- // API change http://hg.openjdk.java.net/jdk9/dev/hotspot/rev/afedee84773e.
- protected static Class<?> findModuleClass() throws ClassNotFoundException {
- try {
- return Class.forName("java.lang.Module");
- } catch (ClassNotFoundException e) {
- return Class.forName("java.lang.reflect.Module");
- }
- }
-
- // API change http://hg.openjdk.java.net/jdk9/dev/hotspot/rev/afedee84773e.
- protected static Class<?> findModuleLayerClass() throws ClassNotFoundException {
- try {
- return Class.forName("java.lang.ModuleLayer");
- } catch (ClassNotFoundException e) {
- return Class.forName("java.lang.reflect.Layer");
- }
- }
-
- private static Method getDeclaredMethodOptional(Class<?> declaringClass, String name, Class<?>... parameterTypes) {
- try {
- return declaringClass.getDeclaredMethod(name, parameterTypes);
- } catch (NoSuchMethodException e) {
- return null;
- }
- }
-
- public static JLModule fromClass(Class<?> cls) {
- try {
- return new JLModule(getModuleMethod.invoke(cls));
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- @SuppressWarnings("unchecked")
- public static JLModule find(String name) {
- try {
- Object bootLayer = bootMethod.invoke(null);
- Set<Object> modules = (Set<Object>) modulesMethod.invoke(bootLayer);
- for (Object m : modules) {
- JLModule module = new JLModule(m);
- String mname = module.getName();
- if (mname.equals(name)) {
- return module;
- }
- }
- } catch (Exception e) {
- throw new InternalError(e);
- }
- return null;
- }
-
- public static JLModule getUnnamedModuleFor(ClassLoader cl) {
- try {
- return new JLModule(getUnnamedModuleMethod.invoke(cl));
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- public String getName() {
- try {
- return (String) getNameMethod.invoke(realModule);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- /**
- * Exports all packages in this module to a given module.
- */
- public void exportAllPackagesTo(JLModule module) {
- if (this != module) {
- for (String pkg : getPackages()) {
- // Export all JVMCI packages dynamically instead
- // of requiring a long list of -XaddExports
- // options on the JVM command line.
- if (!isExported(pkg, module)) {
- addExports(pkg, module);
- addOpens(pkg, module);
- }
- }
- }
- }
-
- @SuppressWarnings("unchecked")
- public Iterable<String> getPackages() {
- try {
- // API change http://hg.openjdk.java.net/jdk9/dev/hotspot/rev/afedee84773e#l1.15
- Object res = getPackagesMethod.invoke(realModule);
- if (res instanceof String[]) {
- return Arrays.asList((String[]) res);
- }
- return (Set<String>) res;
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- public boolean isExported(String pn) {
- try {
- return (Boolean) isExportedMethod.invoke(realModule, pn);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- public boolean isExported(String pn, JLModule other) {
- try {
- return (Boolean) isExported2Method.invoke(realModule, pn, other.realModule);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- public void addExports(String pn, JLModule other) {
- try {
- addExportsMethod.invoke(null, realModule, pn, other.realModule);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
-
- public void addOpens(String pn, JLModule other) {
- if (addOpensMethod != null) {
- try {
- addOpensMethod.invoke(null, realModule, pn, other.realModule);
- } catch (Exception e) {
- throw new AssertionError(e);
- }
- }
- }
-
- @Override
- public String toString() {
- return realModule.toString();
- }
-}