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 29 * @modules jdk.compiler 30 * @build m1/* WithClassLoaderName 31 * @run main/othervm m1/com.app.Main 32 * @run main/othervm WithClassLoaderName 33 */ 34 35 import java.lang.reflect.InvocationTargetException; 36 import java.lang.reflect.Method; 37 import java.net.URL; 38 import java.net.URLClassLoader; 39 import java.nio.file.Path; 40 import java.nio.file.Paths; 41 42 import com.app.Utils; 43 44 public class WithClassLoaderName { 45 private static final String TEST_SRC = System.getProperty("test.src"); 46 private static final String SRC_FILENAME = "WithClassLoaderName.java"; 47 48 private static final Path SRC_DIR = Paths.get(TEST_SRC, "src"); 49 private static final Path CLASSES_DIR = Paths.get("classes"); 50 private static final String THROW_EXCEPTION_CLASS = "p.ThrowException"; 51 52 public static void main(String... args) throws Exception { 53 /* 54 * Test the following frames both have the same class loader name "app" 55 * com.app.Test::test 56 * WithClassLoaderName::test 57 */ 58 Utils.verify(WithClassLoaderName.class, "app", "main", SRC_FILENAME); 59 60 /* 61 * Test StackTraceElement for a class loaded by a named URLClassLoader 62 */ 63 compile(); 64 testURLClassLoader("myloader"); 65 66 // loader name same as application class loader 67 testURLClassLoader("app"); 68 } 69 70 private static void compile() throws Exception { 71 boolean rc = CompilerUtils.compile(SRC_DIR, CLASSES_DIR); 72 if (!rc) { 73 throw new RuntimeException("compilation fails"); 74 } 75 } 76 77 public static void testURLClassLoader(String loaderName) throws Exception { 78 System.err.println("---- test URLClassLoader name: " + loaderName); 79 80 URL[] urls = new URL[] { CLASSES_DIR.toUri().toURL() }; 81 ClassLoader parent = ClassLoader.getSystemClassLoader(); 82 URLClassLoader loader = new URLClassLoader(loaderName, urls, parent); 83 84 Class<?> c = Class.forName(THROW_EXCEPTION_CLASS, true, loader); 85 Method method = c.getMethod("throwError"); 86 try { 87 // invoke p.ThrowException::throwError 88 method.invoke(null); 89 } catch (InvocationTargetException x) { 90 Throwable e = x.getCause(); 91 e.printStackTrace(); 92 93 StackTraceElement[] stes = e.getStackTrace(); 94 StackWalker.StackFrame[] frames = new StackWalker.StackFrame[] { 95 Utils.makeStackFrame(c, "throwError", "ThrowException.java"), 96 Utils.makeStackFrame(WithClassLoaderName.class, "testURLClassLoader", 97 SRC_FILENAME), 98 Utils.makeStackFrame(WithClassLoaderName.class, "main", SRC_FILENAME), 99 }; 100 101 // p.ThrowException.throwError 102 Utils.checkFrame(loaderName, frames[0], stes[0]); 103 // skip reflection frames 104 int i = 1; 105 while (i < stes.length) { 106 String cn = stes[i].getClassName(); 107 if (!cn.startsWith("java.lang.reflect.") && 108 !cn.startsWith("jdk.internal.reflect.")) 109 break; 110 i++; 111 } 112 // WithClassLoaderName.testURLClassLoader 113 Utils.checkFrame("app", frames[1], stes[i]); 114 115 // WithClassLoaderName.main 116 Utils.checkFrame("app", frames[2], stes[i+1]); 117 118 } 119 } 120 121 } 122