1 /* 2 * Copyright (c) 2010, 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 7005371 27 * @summary Multicatch: assertion error while generating LocalVariableTypeTable attribute 28 * @modules jdk.jdeps/com.sun.tools.classfile 29 * @compile -g SubTest.java 30 * @run main T7005371 31 */ 32 33 import com.sun.tools.classfile.Attribute; 34 import com.sun.tools.classfile.ClassFile; 35 import com.sun.tools.classfile.Code_attribute; 36 import com.sun.tools.classfile.LocalVariableTypeTable_attribute; 37 import com.sun.tools.classfile.Method; 38 39 import java.io.*; 40 41 public class T7005371 { 42 43 static final String SUBTEST_NAME = SubTest.class.getName() + ".class"; 44 static final String TEST_METHOD_NAME = "test"; 45 static final int LVT_LENGTH = 1; 46 static final String LVT_SIG_TYPE = "Ljava/util/List<Ljava/lang/String;>;"; 47 48 main(String... args)49 public static void main(String... args) throws Exception { 50 new T7005371().run(); 51 } 52 run()53 public void run() throws Exception { 54 String workDir = System.getProperty("test.classes"); 55 System.out.println(workDir); 56 File compiledTest = new File(workDir, SUBTEST_NAME); 57 verifyLocalVariableTypeTableAttr(compiledTest); 58 } 59 verifyLocalVariableTypeTableAttr(File f)60 void verifyLocalVariableTypeTableAttr(File f) { 61 System.err.println("verify: " + f); 62 try { 63 ClassFile cf = ClassFile.read(f); 64 Method testMethod = null; 65 for (Method m : cf.methods) { 66 if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) { 67 testMethod = m; 68 break; 69 } 70 } 71 if (testMethod == null) { 72 throw new Error("Missing method: " + TEST_METHOD_NAME); 73 } 74 Code_attribute code = (Code_attribute)testMethod.attributes.get(Attribute.Code); 75 if (code == null) { 76 throw new Error("Missing Code attribute for method: " + TEST_METHOD_NAME); 77 } 78 LocalVariableTypeTable_attribute lvt_table = 79 (LocalVariableTypeTable_attribute)code.attributes.get(Attribute.LocalVariableTypeTable); 80 if (lvt_table == null) { 81 throw new Error("Missing LocalVariableTypeTable attribute for method: " + TEST_METHOD_NAME); 82 } 83 if (lvt_table.local_variable_table_length != LVT_LENGTH) { 84 throw new Error("LocalVariableTypeTable has wrong size" + 85 "\nfound: " + lvt_table.local_variable_table_length + 86 "\nrequired: " + LVT_LENGTH); 87 } 88 String sig = 89 cf.constant_pool.getUTF8Value(lvt_table.local_variable_table[0].signature_index); 90 91 if (sig == null || !sig.equals(LVT_SIG_TYPE)) { 92 throw new Error("LocalVariableTypeTable has wrong signature" + 93 "\nfound: " + sig + 94 "\nrequired: " + LVT_SIG_TYPE); 95 } 96 } catch (Exception e) { 97 e.printStackTrace(); 98 throw new Error("error reading " + f +": " + e); 99 } 100 } 101 } 102