| /* |
| * Copyright (c) 2015, 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. |
| */ |
| |
| /* |
| * @test |
| * @summary Stack trace should have module information |
| * @run testng ModuleFrames |
| */ |
| |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| public class ModuleFrames { |
| |
| @Test |
| public void testModuleName() { |
| try { |
| Integer.parseInt("a"); |
| } catch (NumberFormatException e) { |
| |
| StackTraceElement[] stack = e.getStackTrace(); |
| StackTraceElement topFrame = stack[0]; |
| StackTraceElement thisFrame = findFrame(this.getClass().getName(), stack); |
| |
| assertEquals(topFrame.getModuleName(), "java.base", |
| "Expected top frame to be in module java.base"); |
| |
| assertTrue(topFrame.toString().startsWith("java.base"), |
| "Expected toString of top frame to omit loader name, start with module name: java.base"); |
| |
| assertTrue(!topFrame.toString().contains("@"), |
| "Expected toString of top frame not to include module version ('@')"); |
| |
| Path home = Paths.get(System.getProperty("java.home")); |
| boolean isImage = Files.exists(home.resolve("lib").resolve("modules")); |
| if (isImage) { |
| assertTrue(!topFrame.getModuleVersion().isEmpty(), |
| "Expected non-empty STE.getModuleVersion() for top frame"); |
| } |
| |
| assertNull(thisFrame.getModuleName(), |
| "Expected frame for test not to have a module name"); |
| |
| assertTrue(thisFrame.toString().startsWith(this.getClass().getName()), |
| "Expected toString to start with class name (no loader or module name"); |
| |
| ClassLoader testCL = this.getClass().getClassLoader(); |
| if (ClassLoader.getSystemClassLoader().getClass().isInstance(testCL)) { |
| assertEquals(thisFrame.getClassLoaderName(), "app", |
| "Expect STE to have loader name of \"app\""); |
| } |
| } |
| } |
| |
| private static StackTraceElement findFrame(String cn, StackTraceElement[] stack) { |
| return Arrays.stream(stack) |
| .filter(s -> s.getClassName().equals(cn)) |
| .findFirst() |
| .get(); |
| } |
| } |