1 /*
   2  * Copyright (c) 2015 SAP SE. 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 8068909
  27  * @key regression
  28  * @summary test that string optimizations produce code, that doesn't lead to a crash.
  29  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestOptimizeStringConcat
  30  * @author axel.siebenborn@sap.com
  31  */
  32 public class TestOptimizeStringConcat {
  33 
  34     static boolean checkArgumentSyntax(String value, String allowedchars, String notallowedchars, String logmsg) {
  35         String rc = null;
  36 
  37         int maxchar = 99999;
  38         int minchar = 1;
  39         if ((allowedchars != null && notallowedchars != null) || minchar > maxchar) {
  40             rc = "internal error";
  41         } else {
  42             if (value == null) {
  43                 rc = "the value null is not allowed, it is missing";
  44             } else if (value != null && minchar > 0 && value.trim().equals("")) {
  45                 rc = "the value must not be empty";
  46             } else if (value != null) {
  47                 if (value.length() < minchar || value.length() > maxchar) {
  48                     if (rc == null) {
  49                         rc = "the value length must be between +minchar+ and +maxchar";
  50                     }
  51                 }
  52                 char[] _value = value.toCharArray();
  53                 boolean dotfound = false;
  54                 int i = 1;
  55                 if (_value[i] == '.' && !dotfound) {
  56                     dotfound = true;
  57                 } else if (allowedchars != null && allowedchars.indexOf(_value[i]) == -1) {
  58                     if (rc == null) {
  59                         rc = "the value contains an illegal character: '" + _value[i] + "', only following characters are allowed: '+allowedchars+'";
  60                     } else {
  61                         rc += " / the value contains an illegal character: '" + _value[i] + "', only following characters are allowed: '+allowedchars+'";
  62                     }
  63                 } else if (notallowedchars != null && notallowedchars.indexOf(_value[i]) != -1) {
  64                     if (rc == null) {
  65                         rc = "the value contains an illegal character: '" + _value[i] + "', following characters are not allowed '+notallowedchars+'";
  66                     } else {
  67                         rc += " / the value contains an illegal character: '" + _value[i] + "', following characters are not allowed '+notallowedchars+'";
  68                     }
  69                 }
  70             }
  71         }
  72 
  73         if (rc != null) {
  74             System.out.println(logmsg + " ==> " + rc);
  75             return false;
  76         }
  77         return true;
  78     }
  79 
  80     public static void main(String[] args) {
  81         boolean failed = false;
  82         for (int i = 0; i < 10000; i++) {
  83             failed |= !checkArgumentSyntax("theName", null, "\"<&", "Error consistencyCheck: name in component definition");
  84             failed |= !checkArgumentSyntax(null, null, "\"<&", "Error consistencyCheck: name in component definition");
  85             failed |= !checkArgumentSyntax("42", "0123456789.", null, "Error consistencyCheck: counter in component definition");
  86         }
  87         System.out.println(failed);
  88     }
  89 }