21  * questions.
  22  */
  23 
  24 import static java.lang.StackWalker.Option.*;
  25 import java.lang.StackWalker.StackFrame;
  26 import java.util.Arrays;
  27 import java.util.EnumSet;
  28 import java.util.HashSet;
  29 import java.util.List;
  30 import java.util.Random;
  31 import java.util.Set;
  32 import java.util.TreeSet;
  33 
  34 import jdk.test.lib.RandomFactory;
  35 
  36 /**
  37  * @test
  38  * @bug 8140450
  39  * @summary Stack Walk Test (use -Dseed=X to set PRNG seed)
  40  * @library /test/lib

  41  * @compile StackRecorderUtil.java
  42  * @run main/othervm StackWalkTest
  43  * @run main/othervm/java.security.policy=stackwalktest.policy StackWalkTest
  44  * @run main/othervm StackWalkTest -random:50
  45  * @run main/othervm/java.security.policy=stackwalktest.policy StackWalkTest -random:50
  46  * @author danielfuchs, bchristi
  47  * @key randomness
  48  */
  49 public class StackWalkTest {
  50     private static boolean random = false;
  51     private static boolean verbose = false;
  52     private static int randomRuns = 50;
  53 
  54     private static final int MAX_RANDOM_DEPTH = 1000;
  55 
  56     static final Set<String> infrastructureClasses = new TreeSet<>(Arrays.asList(
  57             "jdk.internal.reflect.NativeMethodAccessorImpl",
  58             "jdk.internal.reflect.DelegatingMethodAccessorImpl",
  59             "java.lang.reflect.Method",
  60             "com.sun.javatest.regtest.MainWrapper$MainThread",

  21  * questions.
  22  */
  23 
  24 import static java.lang.StackWalker.Option.*;
  25 import java.lang.StackWalker.StackFrame;
  26 import java.util.Arrays;
  27 import java.util.EnumSet;
  28 import java.util.HashSet;
  29 import java.util.List;
  30 import java.util.Random;
  31 import java.util.Set;
  32 import java.util.TreeSet;
  33 
  34 import jdk.test.lib.RandomFactory;
  35 
  36 /**
  37  * @test
  38  * @bug 8140450
  39  * @summary Stack Walk Test (use -Dseed=X to set PRNG seed)
  40  * @library /test/lib
  41  * @build jdk.test.lib.RandomFactory
  42  * @compile StackRecorderUtil.java
  43  * @run main/othervm StackWalkTest
  44  * @run main/othervm/java.security.policy=stackwalktest.policy StackWalkTest
  45  * @run main/othervm StackWalkTest -random:50
  46  * @run main/othervm/java.security.policy=stackwalktest.policy StackWalkTest -random:50
  47  * @author danielfuchs, bchristi
  48  * @key randomness
  49  */
  50 public class StackWalkTest {
  51     private static boolean random = false;
  52     private static boolean verbose = false;
  53     private static int randomRuns = 50;
  54 
  55     private static final int MAX_RANDOM_DEPTH = 1000;
  56 
  57     static final Set<String> infrastructureClasses = new TreeSet<>(Arrays.asList(
  58             "jdk.internal.reflect.NativeMethodAccessorImpl",
  59             "jdk.internal.reflect.DelegatingMethodAccessorImpl",
  60             "java.lang.reflect.Method",
  61             "com.sun.javatest.regtest.MainWrapper$MainThread",