libjava/testsuite/libjava.lang/stacktrace.java

   1 /* This test should test the stacktrace functionality.
   2    We only print ClassName and MethName since the other information
   3    like FileName and LineNumber are not consistent while building
   4    native or interpreted and we want to test the output inside the dejagnu
   5    test environment.
   6    Also, we have to make the methods public since they might be optimized away
   7    with inline's and then the -O3/-O2 execution might fail.
   8 */
   9 public class stacktrace {
  10   public static void main(String args[]) {
  11     try {
  12       new stacktrace().a();
  13     } catch (TopException e) {
  14     }
  15   }
  16
  17   public void a() throws TopException {
  18     try {
  19       b();
  20     } catch (MiddleException e) {
  21       throw new TopException(e);
  22     }
  23   }
  24
  25   public void b() throws MiddleException {
  26     c();
  27   }
  28
  29   public void c() throws MiddleException {
  30     try {
  31       d();
  32     } catch (BottomException e) {
  33       throw new MiddleException(e);
  34     }
  35   }
  36
  37   public void d() throws BottomException {
  38     e();
  39   }
  40
  41   public void e() throws BottomException {
  42     throw new BottomException();
  43   }
  44 }
  45
  46 class TopException extends Exception {
  47   TopException(Throwable cause) {
  48     super(cause);
  49   }
  50 }
  51
  52 class MiddleException extends Exception {
  53   MiddleException(Throwable cause) {
  54     super(cause);
  55   }
  56 }
  57
  58 class BottomException extends Exception {
  59   BottomException() {
  60     StackTraceElement stack[] = this.getStackTrace();
  61     for (int i = 0; i < stack.length; i++) {
  62       String className = stack[i].getClassName();
  63       String methodName = stack[i].getMethodName();
  64       System.out.println(className + "." + methodName);
  65     }
  66   }
  67 }