1 /*
   2  * Copyright (c) 2012, 2018, 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 vm.mlvm.mixed.func.regression.b7127687;
  25 
  26 import nsk.share.Consts;
  27 import vm.mlvm.share.MlvmTest;
  28 import vm.mlvm.share.Env;
  29 import vm.mlvm.share.CustomClassLoaders;
  30 
  31 import java.lang.invoke.MethodType;
  32 
  33 import java.util.List;
  34 import java.util.ArrayList;
  35 
  36 import jdk.internal.org.objectweb.asm.ClassWriter;
  37 import static jdk.internal.org.objectweb.asm.Opcodes.*;
  38 
  39 public class Test extends MlvmTest {
  40 
  41     final static int CLASSES_COUNT = 1000;
  42 
  43     public static void main(String[] args) { MlvmTest.launch(args); }
  44 
  45     @Override
  46     public boolean run() throws Throwable {
  47         List<Class> classes = new ArrayList<Class>();
  48 
  49         //generating list of unique classes
  50         for (int i = 0; i < CLASSES_COUNT; i++) {
  51             classes.add(generateClass("Class" + i));
  52         }
  53 
  54         for (Class a : classes) {
  55             for (Class b : classes) {
  56                 Env.traceNormal("Perform call MethodType.methodType(" + a + ", " + b + ")");
  57                 MethodType.methodType(a, b);
  58             }
  59         }
  60 
  61         return true;
  62     }
  63 
  64 
  65     private static Class generateClass(String name) throws ClassNotFoundException{
  66         ClassWriter cw = new ClassWriter(0);
  67         cw.visit(V1_1, ACC_PUBLIC, name, null, "java/lang/Object", null);
  68         return CustomClassLoaders.makeClassBytesLoader(cw.toByteArray(), name).loadClass(name);
  69     }
  70 
  71 }