/* * Copyright (c) 2021, 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. */ import java.util.concurrent.Semaphore; class ClassLoadingThread extends Thread { private ClassLoader ldr = null; private Semaphore mainSync = null; public ClassLoadingThread(ClassLoader loader, Semaphore sem) { ldr = loader; mainSync = sem; } private boolean success = true; public boolean report_success() { return success; } public void run() { try { ThreadPrint.println("Starting..."); // Initiate class loading using specified type Class a = Class.forName("ClassInLoader", true, ldr); Object obj = a.getConstructor().newInstance(); } catch (Throwable e) { ThreadPrint.println("Exception is caught: " + e); e.printStackTrace(); success = false; } finally { ThreadPrint.println("Finished"); // Signal main thread to start t2. if (mainSync != null) { mainSync.release(); } } } }