/* * Copyright (c) 2013, 2018, 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. */ //package nsk.jvmti.RedefineClasses.StressRedefine; package nsk.jvmti.RedefineClasses; import java.util.Random; public class GenerateSourceHelper { static final String STATIC_METHOD_NAME = "staticMethod"; static final String NONSTATIC_METHOD_NAME = "regularMethod"; static final String CLASS_NAME = "MyClass"; private static Random random; public static void setRandom(Random random) { GenerateSourceHelper.random = random; } /** * We can vary only constant pool and method bodies from call to call * */ static CharSequence generateSource() { return "public class " + CLASS_NAME + " { " + "public static String s1 = \"s1s" + random.nextInt() + "dfsdf\"; " + "public int i = 1345345345; \n" + "public static double dd = 1e-4; \n" + "public String s2 = \"s2" + random.nextInt() + "sdfsdf\"; \n" + "public static String static_s2 = \"s2" + random.nextInt() + "sdfsdf\"; \n" + "protected String sprotected1 = \"asdfsdf" + random.nextInt() + "sdf\"; \n" + "protected double d = -.12345; \n" + "public String methodJustPadding() {return s1 + s2 + d; } \n" + "public static String " + STATIC_METHOD_NAME + "(double d, int i, Object o) {\n" + "String ret_0 = \"little computation \" + (4 * dd + d + i + o.hashCode() + s1.length()); \n" + "String ret_1 = \"in_static_method call_random=" + random.nextInt() + "\"; \n" + "String ret = s1 + static_s2 + d + i + o; \n" + //"System.out.println(\"ret stat is : \" + ret);" + "return ret; " + "} \n" + "public String methodInTheMiddle() {return s1 + s2; } \n" + "public String " + NONSTATIC_METHOD_NAME + "(double d, int i, Object o) {\n" + "String ret_0 = \"little computation \" + (2 * dd + 5 * d + i + o.hashCode() + s2.length()); \n" + "String ret_1 = \"in_nonstatic_method call_random=" + random.nextInt() + "\"; " + "String ret = ret_0 + ret_1 + s1 + s2 + i + o; \n" + //"System.out.println(\"ret nonstat is : \" + ret);" + "return ret;" + "} \n" + "public String methodFinalInClass() {return s1 + s2 + i; } \n" + "}"; } }