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1 /* |
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2 * Copyright (c) 2002-2013, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright (c) 2011 SAP AG. All Rights Reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 */ |
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24 |
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25 class TestMT { |
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26 |
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27 static boolean loadLib(String libName) { |
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28 try { |
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29 System.loadLibrary(libName); |
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30 System.out.println("Loaded library "+ libName + "."); |
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31 return true; |
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32 } catch (SecurityException e) { |
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33 System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n"); |
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34 } catch (UnsatisfiedLinkError e) { |
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35 System.out.println("loadLibrary(\"" + libName + "\") throws: " + e + "\n"); |
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36 } |
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37 return false; |
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38 } |
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39 |
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40 public static int counter = 1; |
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41 static int Runner() { |
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42 counter = counter * -1; |
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43 int i = counter; |
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44 if (counter < 2) counter += Runner(); |
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45 return i; |
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46 } |
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47 |
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48 public static int run(String msg) { |
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49 try { |
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50 Runner(); |
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51 } catch (StackOverflowError e) { |
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52 System.out.println(msg + " caught stack overflow error."); |
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53 return 0; |
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54 } catch (OutOfMemoryError e) { |
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55 return 0; |
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56 } |
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57 return 2; |
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58 } |
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59 |
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60 public static void main(String argv[]) { |
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61 try { |
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62 for (int i = 0; i < 20; i++) { |
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63 Thread t = new DoStackOverflow("SpawnedThread " + i); |
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64 t.start(); |
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65 } |
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66 run("Main thread"); |
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67 loadLib("test-rwx"); |
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68 run("Main thread"); |
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69 } catch (Exception e) { |
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70 System.out.println(e); |
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71 } |
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72 } |
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73 |
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74 static class DoStackOverflow extends Thread { |
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75 public DoStackOverflow(String name) { |
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76 super(name); |
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77 } |
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78 public void run() { |
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79 for (int i = 0; i < 10; ++i) { |
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80 TestMT.run(getName()); |
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81 yield(); |
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82 } |
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83 } |
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84 } |
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85 } |