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 
  49     public static void main(String... args) throws Exception {
  50         new T7005371().run();
  51     }
  52 
  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 
  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 }