1 /* 2 * Copyright (c) 2019, 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 8212117 27 * @summary Verify JVMTI GetClassStatus returns CLASS_PREPARE after call to Class.forName() 28 * @run main/othervm/native -agentlib:ClassStatus ClassStatus 29 */ 30 31 32 public class ClassStatus { 33 static { 34 try { 35 System.out.println("ClassStatus static block"); 36 System.loadLibrary("ClassStatus"); 37 } catch (UnsatisfiedLinkError ule) { 38 System.err.println("Could not load ClassStatus library"); 39 System.err.println("java.library.path: " 40 + System.getProperty("java.library.path")); 41 throw ule; 42 } 43 } 44 45 static native int check(Class klass); 46 47 public static void main(String[] args) throws ClassNotFoundException { 48 ClassLoader loader = ClassStatus.class.getClassLoader(); 49 Module module = loader.getUnnamedModule(); 50 51 // Load class, but don't initialize it 52 Class foo2 = Class.forName(module, "Foo2"); 53 Class foo3 = Class.forName("Foo3", false, loader); 54 55 System.out.println("Loaded: " + foo2); 56 System.out.println("Loaded: " + foo3); 57 58 int status2 = check(foo2); 59 int status3 = check(foo3); 60 61 new Foo2().bar(); 62 new Foo3().bar(); 63 64 if (status2 != 0) { 65 System.out.println("The agent returned non-zero exit status for Foo2: " + status2); 66 } 67 if (status3 != 0) { 68 System.out.println("The agent returned non-zero exit status for Foo3: " + status3); 69 } 70 if (status2 != 0 || status3 != 0) { 71 throw new RuntimeException("Non-zero status returned from the agent"); 72 } 73 } 74 } 75 76 class Foo2 { 77 static { 78 System.out.println("Foo2 is initialized"); 79 } 80 void bar() { 81 System.out.println("Foo2.bar() is called"); 82 } 83 } 84 85 class Foo3 { 86 static { 87 System.out.println("Foo3 is initialized"); 88 } 89 void bar() { 90 System.out.println("Foo3.bar() is called"); 91 } 92 }