T7005371.java revision 2942:08092deced3f 
1258945Sroberto/*
2258945Sroberto * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
3258945Sroberto * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4258945Sroberto *
5258945Sroberto * This code is free software; you can redistribute it and/or modify it
6258945Sroberto * under the terms of the GNU General Public License version 2 only, as
7258945Sroberto * published by the Free Software Foundation.
8258945Sroberto *
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
33import com.sun.tools.classfile.Attribute;
34import com.sun.tools.classfile.ClassFile;
35import com.sun.tools.classfile.Code_attribute;
36import com.sun.tools.classfile.LocalVariableTypeTable_attribute;
37import com.sun.tools.classfile.Method;
38
39import java.io.*;
40
41public 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}
102