115 lines
4.1 KiB
Java
115 lines
4.1 KiB
Java
/*
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* Copyright (c) 2021, 2023, 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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/*
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* @test
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* @bug 8271820
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* @library /test/lib/
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* @modules jdk.compiler
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* @build CustomLoaderTest jdk.test.lib.compiler.CompilerUtils
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* @run testng/othervm CustomLoaderTest
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*
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* @summary Test method whose parameter types and return type are not visible to the caller.
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*/
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import java.io.IOException;
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import java.lang.reflect.*;
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import java.net.MalformedURLException;
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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.concurrent.atomic.AtomicInteger;
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import jdk.test.lib.compiler.CompilerUtils;
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import org.testng.annotations.BeforeTest;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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public class CustomLoaderTest {
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private static final Path CLASSES = Paths.get("classes");
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@BeforeTest
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public void setup() throws IOException {
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String src = System.getProperty("test.src", ".");
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String classpath = System.getProperty("test.classes", ".");
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boolean rc = CompilerUtils.compile(Paths.get(src, "ReflectTest.java"), CLASSES, "-cp", classpath);
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if (!rc) {
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throw new RuntimeException("fail compilation");
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}
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try {
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Class<?> p = Class.forName("ReflectTest$P");
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fail("should not be visible to this loader");
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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}
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}
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@Test
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public void test() throws Exception {
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TestLoader loader1 = new TestLoader();
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TestLoader loader2 = new TestLoader();
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Method m1 = loader1.findMethod();
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Method m2 = loader2.findMethod();
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assertTrue(m1.getDeclaringClass() != m2.getDeclaringClass());
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assertTrue(m1.getDeclaringClass() == loader1.c);
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assertTrue(m2.getDeclaringClass() == loader2.c);
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Object o1 = m1.invoke(loader1.c.newInstance(), loader1.p.newInstance(), loader1.q.newInstance());
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Object o2 = m2.invoke(loader2.c.newInstance(), loader2.p.newInstance(), loader2.q.newInstance());
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assertTrue(o1.getClass() != o2.getClass());
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assertTrue(o1.getClass() == loader1.r);
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assertTrue(o2.getClass() == loader2.r);
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}
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static class TestLoader extends URLClassLoader {
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static URL[] toURLs() {
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try {
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return new URL[]{ CLASSES.toUri().toURL() };
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} catch (MalformedURLException e) {
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throw new Error(e);
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}
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}
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static AtomicInteger counter = new AtomicInteger(0);
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final Class<?> c;
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final Class<?> p;
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final Class<?> q;
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final Class<?> r;
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TestLoader() throws ClassNotFoundException {
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super("testloader-" + counter.getAndIncrement(), toURLs(), ClassLoader.getPlatformClassLoader());
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this.c = Class.forName("ReflectTest", true, this);
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this.p = Class.forName("ReflectTest$P", true, this);
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this.q = Class.forName("ReflectTest$Q", true, this);
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this.r = Class.forName("ReflectTest$R", true, this);
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}
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Method findMethod() throws ReflectiveOperationException {
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return c.getMethod("m", p, q);
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}
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}
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}
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