1 /* 2 * Copyright (c) 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 8176147 27 * @summary Throw ClassFormatError exception for multiple Signature attributes 28 * @compile DupSignatureAttrs.jcod 29 * @run main TestDupSignatureAttr 30 */ 31 32 public class TestDupSignatureAttr { 33 public static void main(String args[]) throws Throwable { 34 35 System.out.println("Regression test for bug 8176147"); 36 37 // Duplicate Class Signature attributes. 38 try { 39 Class newClass = Class.forName("DupClassSigAttrs"); 40 throw new RuntimeException("Expected ClassFormatError exception not thrown"); 41 } catch (java.lang.ClassFormatError e) { 42 if (!e.getMessage().contains("Multiple Signature attributes in class file")) { 43 throw new RuntimeException("Wrong ClassFormatError exception thrown: " + 44 e.getMessage()); 45 } 46 } 47 48 // Duplicate Method Signature attributes. 49 try { 50 Class newClass = Class.forName("DupMthSigAttrs"); 51 throw new RuntimeException("Expected ClassFormatError exception not thrown"); 52 } catch (java.lang.ClassFormatError e) { 53 if (!e.getMessage().contains("Multiple Signature attributes for method")) { 54 throw new RuntimeException("Wrong ClassFormatError exception thrown: " + 55 e.getMessage()); 56 } 57 } 58 59 // Duplicate Field Signature attributes. 60 try { 61 Class newClass = Class.forName("DupFldSigAttrs"); 62 throw new RuntimeException("Expected ClassFormatError exception not thrown"); 63 } catch (java.lang.ClassFormatError e) { 64 if (!e.getMessage().contains("Multiple Signature attributes for field")) { 65 throw new RuntimeException("Wrong ClassFormatError exception thrown: " + 66 e.getMessage()); 67 } 68 } 69 70 // Multiple Signature attributes but no duplicates. 71 Class newClass = Class.forName("OkaySigAttrs"); 72 } 73 }