1/* 2 * Copyright (c) 2014, 2015, 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 8034091 27 * @summary Add LineNumberTable attributes for conditional operator (?:) split across several lines. 28 * @modules jdk.jdeps/com.sun.tools.classfile 29 */ 30 31import com.sun.tools.classfile.ClassFile; 32import com.sun.tools.classfile.ConstantPoolException; 33import com.sun.tools.classfile.Method; 34import com.sun.tools.classfile.Attribute; 35import com.sun.tools.classfile.Code_attribute; 36import com.sun.tools.classfile.LineNumberTable_attribute; 37import com.sun.tools.classfile.LineNumberTable_attribute.Entry; 38 39import java.io.File; 40import java.io.IOException; 41 42public class ConditionalLineNumberTest { 43 public static void main(String[] args) throws Exception { 44 // check that we have 5 consecutive entries for method() 45 Entry[] lines = findEntries(); 46 if (lines == null || lines.length != 5) 47 throw new Exception("conditional line number table incorrect"); 48 49 int current = lines[0].line_number; 50 for (Entry e : lines) { 51 if (e.line_number != current) 52 throw new Exception("conditional line number table incorrect"); 53 current++; 54 } 55 } 56 57 static Entry[] findEntries() throws IOException, ConstantPoolException { 58 ClassFile self = ClassFile.read(ConditionalLineNumberTest.class.getResourceAsStream("ConditionalLineNumberTest.class")); 59 for (Method m : self.methods) { 60 if ("method".equals(m.getName(self.constant_pool))) { 61 Code_attribute code_attribute = (Code_attribute)m.attributes.get(Attribute.Code); 62 for (Attribute at : code_attribute.attributes) { 63 if (Attribute.LineNumberTable.equals(at.getName(self.constant_pool))) { 64 return ((LineNumberTable_attribute)at).line_number_table; 65 } 66 } 67 } 68 } 69 return null; 70 } 71 72 // This method should get one LineNumberTable entry per line 73 // in the method body. 74 public static String method(int field) { 75 String s = field % 2 == 0 ? 76 (field == 0 ? "false" 77 : "true" + field) : //Breakpoint 78 "false" + field; //Breakpoint 79 return s; 80 } 81} 82