1 /*
   2  * Copyright (c) 2014, 2016, 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 8003147
  27  * @library /javax/xml/jaxp/libs /javax/xml/jaxp/unittest
  28  * @compile Bug8003147TestClass.java
  29  * @run testng/othervm -DrunSecMngr=true parsers.Bug8003147Test
  30  * @run testng/othervm parsers.Bug8003147Test
  31  * @summary Test port fix for BCEL bug 39695.
  32  */
  33 
  34 package parsers;
  35 
  36 import static jaxp.library.JAXPTestUtilities.getSystemProperty;
  37 
  38 import java.io.FileOutputStream;
  39 import java.io.FilePermission;
  40 
  41 import jaxp.library.JAXPTestUtilities;
  42 
  43 import org.testng.Assert;
  44 import org.testng.annotations.Listeners;
  45 import org.testng.annotations.Test;
  46 
  47 import com.sun.org.apache.bcel.internal.classfile.ClassParser;
  48 import com.sun.org.apache.bcel.internal.classfile.ConstantClass;
  49 import com.sun.org.apache.bcel.internal.classfile.ConstantPool;
  50 import com.sun.org.apache.bcel.internal.classfile.ConstantUtf8;
  51 import com.sun.org.apache.bcel.internal.classfile.JavaClass;
  52 import com.sun.org.apache.bcel.internal.classfile.Method;
  53 import com.sun.org.apache.bcel.internal.generic.ClassGen;
  54 import com.sun.org.apache.bcel.internal.generic.MethodGen;
  55 
  56 @Listeners({ jaxp.library.FilePolicy.class, jaxp.library.InternalAPIPolicy.class })
  57 public class Bug8003147Test {
  58 
  59     @Test
  60     public void test() throws Exception {
  61         // Note: com.sun.org.apache.bcel.internal.classfile.JavaClass doesn't
  62         // support InvokeDynamic, so can't use lambda, also can't use string1 +
  63         // string2, because javac will generate a dynamic call where invoking
  64         // string1.concat(string2), so create a separate Bug8003147TestClass
  65         JAXPTestUtilities.tryRunWithTmpPermission(() -> {
  66             String classfile = getSystemProperty("test.classes") + "/parsers/Bug8003147TestClass.class";
  67             JavaClass jc = new ClassParser(classfile).parse();
  68 
  69             // rename class
  70             ConstantPool cp = jc.getConstantPool();
  71             int cpIndex = ((ConstantClass) cp.getConstant(jc.getClassNameIndex())).getNameIndex();
  72             cp.setConstant(cpIndex, new ConstantUtf8("parsers/Bug8003147TestClassPrime"));
  73             ClassGen gen = new ClassGen(jc);
  74             Method[] methods = jc.getMethods();
  75             int index;
  76             for (index = 0; index < methods.length; index++) {
  77                 if (methods[index].getName().equals("doSomething")) {
  78                     break;
  79                 }
  80             }
  81             Method m = methods[index];
  82             MethodGen mg = new MethodGen(m, gen.getClassName(), gen.getConstantPool());
  83             gen.replaceMethod(m, mg.getMethod());
  84             String path = classfile.replace("Bug8003147TestClass", "Bug8003147TestClassPrime");
  85             gen.getJavaClass().dump(new FileOutputStream(path));
  86 
  87             try {
  88                 Class.forName("parsers.Bug8003147TestClassPrime");
  89             } catch (ClassFormatError cfe) {
  90                 cfe.printStackTrace();
  91                 Assert.fail("modified version of class does not pass verification");
  92             }
  93         }, new FilePermission(getSystemProperty("test.classes") + "/-", "read,write"));
  94     }
  95 }
  96