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1715
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1 /*
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2 * @test
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3 * @bug 6894807
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4 * @summary No ClassCastException for HashAttributeSet constructors if run with -Xcomp
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5 * @compile IsInstanceTest.java
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6 * @run shell Test6894807.sh
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7 */
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8
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9 public class IsInstanceTest {
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10
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11 public static void main(String[] args) {
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12 BaseInterface baseInterfaceImpl = new BaseInterfaceImpl();
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13 for (int i = 0; i < 100000; i++) {
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14 if (isInstanceOf(baseInterfaceImpl, ExtendedInterface.class)) {
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15 System.out.println("Failed at index:" + i);
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16 System.out.println("Arch: "+System.getProperty("os.arch", "")+
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17 " OS: "+System.getProperty("os.name", "")+
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18 " OSV: "+System.getProperty("os.version", "")+
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19 " Cores: "+Runtime.getRuntime().availableProcessors()+
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20 " JVM: "+System.getProperty("java.version", "")+" "+System.getProperty("sun.arch.data.model", ""));
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21 break;
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22 }
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23 }
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24 System.out.println("Done!");
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25 }
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26
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27 public static boolean isInstanceOf(BaseInterface baseInterfaceImpl, Class... baseInterfaceClasses) {
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28 for (Class baseInterfaceClass : baseInterfaceClasses) {
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29 if (baseInterfaceClass.isInstance(baseInterfaceImpl)) {
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30 return true;
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31 }
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32 }
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33 return false;
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34 }
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35
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36 private interface BaseInterface {
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37 }
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38
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39 private interface ExtendedInterface extends BaseInterface {
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40 }
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41
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42 private static class BaseInterfaceImpl implements BaseInterface {
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43 }
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44 }
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