/*

 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 7005371

 * @summary  Multicatch: assertion error while generating LocalVariableTypeTable attribute

 * @compile -g SubTest.java

 * @run main T7005371

 */

import com.sun.tools.classfile.Attribute;

import com.sun.tools.classfile.ClassFile;

import com.sun.tools.classfile.Code_attribute;

import com.sun.tools.classfile.LocalVariableTypeTable_attribute;

import com.sun.tools.classfile.Method;

import java.io.*;

public class T7005371 {

    static final String SUBTEST_NAME = SubTest.class.getName() + ".class";

    static final String TEST_METHOD_NAME = "test";

    static final int LVT_LENGTH = 1;

    static final String LVT_SIG_TYPE = "Ljava/util/List<Ljava/lang/String;>;";

    public static void main(String... args) throws Exception {

        new T7005371().run();

    }

    public void run() throws Exception {

        String workDir = System.getProperty("test.classes");

        System.out.println(workDir);

        File compiledTest = new File(workDir, SUBTEST_NAME);

        verifyLocalVariableTypeTableAttr(compiledTest);

    }

    void verifyLocalVariableTypeTableAttr(File f) {

        System.err.println("verify: " + f);

        try {

            ClassFile cf = ClassFile.read(f);

            Method testMethod = null;

            for (Method m : cf.methods) {

                if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) {

                    testMethod = m;

                    break;

                }

            }

            if (testMethod == null) {

                throw new Error("Missing method: " + TEST_METHOD_NAME);

            }

            Code_attribute code = (Code_attribute)testMethod.attributes.get(Attribute.Code);

            if (code == null) {

                throw new Error("Missing Code attribute for method: " + TEST_METHOD_NAME);

            }

            LocalVariableTypeTable_attribute lvt_table =

                    (LocalVariableTypeTable_attribute)code.attributes.get(Attribute.LocalVariableTypeTable);

            if (lvt_table == null) {

                throw new Error("Missing LocalVariableTypeTable attribute for method: " + TEST_METHOD_NAME);

            }

            if (lvt_table.local_variable_table_length != LVT_LENGTH) {

                throw new Error("LocalVariableTypeTable has wrong size" +

                        "\nfound: " + lvt_table.local_variable_table_length +

                        "\nrequired: " + LVT_LENGTH);

            }

            String sig =

                    cf.constant_pool.getUTF8Value(lvt_table.local_variable_table[0].signature_index);

            if (sig == null || !sig.equals(LVT_SIG_TYPE)) {

                throw new Error("LocalVariableTypeTable has wrong signature" +

                        "\nfound: " + sig +

                        "\nrequired: " + LVT_SIG_TYPE);

            }

        } catch (Exception e) {

            e.printStackTrace();

            throw new Error("error reading " + f +": " + e);

        }

    }

}