1 /* 2 * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6479237 27 * @summary Basic test StackTraceElement with class loader names 28 * @library lib /lib/testlibrary /test/lib 29 * @modules jdk.compiler 30 * @build jdk.test.lib.compiler.CompilerUtils 31 * m1/* WithClassLoaderName 32 * @run main/othervm m1/com.app.Main 33 * @run main/othervm WithClassLoaderName 34 */ 35 36 import java.lang.reflect.InvocationTargetException; 37 import java.lang.reflect.Method; 38 import java.net.URL; 39 import java.net.URLClassLoader; 40 import java.nio.file.Path; 41 import java.nio.file.Paths; 42 43 import jdk.test.lib.compiler.CompilerUtils; 44 45 import com.app.Utils; 46 47 public class WithClassLoaderName { 48 private static final String TEST_SRC = System.getProperty("test.src"); 49 private static final String SRC_FILENAME = "WithClassLoaderName.java"; 50 51 private static final Path SRC_DIR = Paths.get(TEST_SRC, "src"); 52 private static final Path CLASSES_DIR = Paths.get("classes"); 53 private static final String THROW_EXCEPTION_CLASS = "p.ThrowException"; 54 55 public static void main(String... args) throws Exception { 56 /* 57 * Test the following frames both have the same class loader name "app" 58 * com.app.Test::test 59 * WithClassLoaderName::test 60 */ 61 Utils.verify(WithClassLoaderName.class, "app", "main", SRC_FILENAME); 62 63 /* 64 * Test StackTraceElement for a class loaded by a named URLClassLoader 65 */ 66 compile(); 67 testURLClassLoader("myloader"); 68 69 // loader name same as application class loader 70 testURLClassLoader("app"); 71 } 72 73 private static void compile() throws Exception { 74 boolean rc = CompilerUtils.compile(SRC_DIR, CLASSES_DIR); 75 if (!rc) { 76 throw new RuntimeException("compilation fails"); 77 } 78 } 79 80 public static void testURLClassLoader(String loaderName) throws Exception { 81 System.err.println("---- test URLClassLoader name: " + loaderName); 82 83 URL[] urls = new URL[] { CLASSES_DIR.toUri().toURL() }; 84 ClassLoader parent = ClassLoader.getSystemClassLoader(); 85 URLClassLoader loader = new URLClassLoader(loaderName, urls, parent); 86 87 Class<?> c = Class.forName(THROW_EXCEPTION_CLASS, true, loader); 88 Method method = c.getMethod("throwError"); 89 try { 90 // invoke p.ThrowException::throwError 91 method.invoke(null); 92 } catch (InvocationTargetException x) { 93 Throwable e = x.getCause(); 94 e.printStackTrace(); 95 96 StackTraceElement[] stes = e.getStackTrace(); 97 StackWalker.StackFrame[] frames = new StackWalker.StackFrame[] { 98 Utils.makeStackFrame(c, "throwError", "ThrowException.java"), 99 Utils.makeStackFrame(WithClassLoaderName.class, "testURLClassLoader", 100 SRC_FILENAME), 101 Utils.makeStackFrame(WithClassLoaderName.class, "main", SRC_FILENAME), 102 }; 103 104 // p.ThrowException.throwError 105 Utils.checkFrame(loaderName, frames[0], stes[0]); 106 // skip reflection frames 107 int i = 1; 108 while (i < stes.length) { 109 String cn = stes[i].getClassName(); 110 if (!cn.startsWith("java.lang.reflect.") && 111 !cn.startsWith("jdk.internal.reflect.")) 112 break; 113 i++; 114 } 115 // WithClassLoaderName.testURLClassLoader 116 Utils.checkFrame("app", frames[1], stes[i]); 117 118 // WithClassLoaderName.main 119 Utils.checkFrame("app", frames[2], stes[i+1]); 120 121 } 122 } 123 124 } 125