1 /*

     2  * Copyright (c) 2014, 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 package javax.xml.parsers;

    25 

    26 import java.io.FileOutputStream;

    27 import java.util.ArrayList;

    28 

    29 import org.testng.Assert;

    30 import org.testng.annotations.Test;

    31 

    32 import com.sun.org.apache.bcel.internal.classfile.ClassParser;

    33 import com.sun.org.apache.bcel.internal.classfile.ConstantClass;

    34 import com.sun.org.apache.bcel.internal.classfile.ConstantPool;

    35 import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;

    36 import com.sun.org.apache.bcel.internal.classfile.JavaClass;

    37 import com.sun.org.apache.bcel.internal.classfile.Method;

    38 import com.sun.org.apache.bcel.internal.generic.ClassGen;

    39 import com.sun.org.apache.bcel.internal.generic.MethodGen;

    40 

    41 /*

    42  * @bug 8003147

    43  * @summary Test port fix for BCEL bug 39695.

    44  */

    45 public class Bug8003147Test {

    46 

    47     @Test

    48     public void test() throws Exception {

    49         String classfile = getClass().getResource("Bug8003147Test.class").getPath();

    50         JavaClass jc = new ClassParser(classfile).parse();

    51         // rename class

    52         ConstantPool cp = jc.getConstantPool();

    53         int cpIndex = ((ConstantClass) cp.getConstant(jc.getClassNameIndex())).getNameIndex();

    54         cp.setConstant(cpIndex, new ConstantUtf8("javax/xml/parsers/Bug8003147TestPrime"));

    55         ClassGen gen = new ClassGen(jc);

    56         Method[] methods = jc.getMethods();

    57         int index;

    58         for (index = 0; index < methods.length; index++) {

    59             if (methods[index].getName().equals("doSomething")) {

    60                 break;

    61             }

    62         }

    63         Method m = methods[index];

    64         MethodGen mg = new MethodGen(m, gen.getClassName(), gen.getConstantPool());

    65         gen.replaceMethod(m, mg.getMethod());

    66         String path = classfile.replace("Bug8003147Test", "Bug8003147TestPrime");

    67         gen.getJavaClass().dump(new FileOutputStream(path));

    68 

    69         try {

    70             Class.forName("javax.xml.parsers.Bug8003147TestPrime");

    71         } catch (ClassFormatError cfe) {

    72             cfe.printStackTrace();

    73             Assert.fail("modified version of class does not pass verification");

    74         }

    75     }

    76 

    77     public void doSomething(double d, ArrayList<Integer> list) {

    78     }

    79 }