test/tools/javac/multicatch/7005371/T7005371.java

Thu, 09 Dec 2010 15:50:57 +0000

author
mcimadamore
date
Thu, 09 Dec 2010 15:50:57 +0000
changeset 781
e3df8d7a9752
parent 0
959103a6100f
permissions
-rw-r--r--

7005371: Multicatch: assertion error while generating LocalVariableTypeTable attribute
Summary: compiler crashes with assertion error if '-g' option is passed and source contains multicatch
Reviewed-by: jjg

     1 /*
     2  * Copyright (c) 2010, 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  */
    24 /*
    25  * @test
    26  * @bug 7005371
    27  * @summary  Multicatch: assertion error while generating LocalVariableTypeTable attribute
    28  * @compile -g SubTest.java
    29  * @run main T7005371
    30  */
    32 import com.sun.tools.classfile.Attribute;
    33 import com.sun.tools.classfile.ClassFile;
    34 import com.sun.tools.classfile.Code_attribute;
    35 import com.sun.tools.classfile.LocalVariableTypeTable_attribute;
    36 import com.sun.tools.classfile.Method;
    38 import java.io.*;
    40 public class T7005371 {
    42     static final String SUBTEST_NAME = SubTest.class.getName() + ".class";
    43     static final String TEST_METHOD_NAME = "test";
    44     static final int LVT_LENGTH = 1;
    45     static final String LVT_SIG_TYPE = "Ljava/util/List<Ljava/lang/String;>;";
    48     public static void main(String... args) throws Exception {
    49         new T7005371().run();
    50     }
    52     public void run() throws Exception {
    53         String workDir = System.getProperty("test.classes");
    54         System.out.println(workDir);
    55         File compiledTest = new File(workDir, SUBTEST_NAME);
    56         verifyLocalVariableTypeTableAttr(compiledTest);
    57     }
    59     void verifyLocalVariableTypeTableAttr(File f) {
    60         System.err.println("verify: " + f);
    61         try {
    62             ClassFile cf = ClassFile.read(f);
    63             Method testMethod = null;
    64             for (Method m : cf.methods) {
    65                 if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) {
    66                     testMethod = m;
    67                     break;
    68                 }
    69             }
    70             if (testMethod == null) {
    71                 throw new Error("Missing method: " + TEST_METHOD_NAME);
    72             }
    73             Code_attribute code = (Code_attribute)testMethod.attributes.get(Attribute.Code);
    74             if (code == null) {
    75                 throw new Error("Missing Code attribute for method: " + TEST_METHOD_NAME);
    76             }
    77             LocalVariableTypeTable_attribute lvt_table =
    78                     (LocalVariableTypeTable_attribute)code.attributes.get(Attribute.LocalVariableTypeTable);
    79             if (lvt_table == null) {
    80                 throw new Error("Missing LocalVariableTypeTable attribute for method: " + TEST_METHOD_NAME);
    81             }
    82             if (lvt_table.local_variable_table_length != LVT_LENGTH) {
    83                 throw new Error("LocalVariableTypeTable has wrong size" +
    84                         "\nfound: " + lvt_table.local_variable_table_length +
    85                         "\nrequired: " + LVT_LENGTH);
    86             }
    87             String sig =
    88                     cf.constant_pool.getUTF8Value(lvt_table.local_variable_table[0].signature_index);
    90             if (sig == null || !sig.equals(LVT_SIG_TYPE)) {
    91                 throw new Error("LocalVariableTypeTable has wrong signature" +
    92                         "\nfound: " + sig +
    93                         "\nrequired: " + LVT_SIG_TYPE);
    94             }
    95         } catch (Exception e) {
    96             e.printStackTrace();
    97             throw new Error("error reading " + f +": " + e);
    98         }
    99     }
   100 }

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