91 lines
3.4 KiB
Java
91 lines
3.4 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.lang.module.Configuration;
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import java.lang.module.ModuleFinder;
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import java.lang.reflect.Method;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.Set;
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public class TestLayer {
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private static final Path MODS_DIR = Paths.get("mods");
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private static final Set<String> modules = Set.of("m1", "m2");
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public static void main(String[] args) throws Exception {
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// disable security manager until Class.forName is called.
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SecurityManager sm = System.getSecurityManager();
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if (sm != null) {
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System.setSecurityManager(null);
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}
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ModuleFinder finder = ModuleFinder.of(MODS_DIR);
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Configuration parent = ModuleLayer.boot().configuration();
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Configuration cf = parent.resolveAndBind(ModuleFinder.of(),
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finder,
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modules);
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ClassLoader scl = ClassLoader.getSystemClassLoader();
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ModuleLayer layer = ModuleLayer.boot().defineModulesWithManyLoaders(cf, scl);
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Module m1 = layer.findModule("m1").get();
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Module m2 = layer.findModule("m2").get();
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if (sm != null) {
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System.setSecurityManager(sm);
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}
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// find exported and non-exported class from a named module
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findClass(m1, "p1.A");
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findClass(m1, "p1.internal.B");
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findClass(m2, "p2.C");
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// find class from unnamed module
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ClassLoader ld = TestLayer.class.getClassLoader();
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findClass(ld.getUnnamedModule(), "TestDriver");
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// check if clinit should not be initialized
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// compile without module-path; so use reflection
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Class<?> c = Class.forName(m1, "p1.Initializer");
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Method m = c.getMethod("isInited");
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Boolean isClinited = (Boolean) m.invoke(null);
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if (isClinited.booleanValue()) {
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throw new RuntimeException("clinit should not be invoked");
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}
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}
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static Class<?> findClass(Module module, String cn) {
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Class<?> c = Class.forName(module, cn);
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if (c == null) {
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throw new RuntimeException(cn + " not found in " + module);
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}
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if (c.getModule() != module) {
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throw new RuntimeException(c.getModule() + " != " + module);
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}
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return c;
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}
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}
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