core/src/com/google/inject/internal/InterceptorStackCallback.java
private void pruneStacktrace(Throwable throwable) {
    for (Throwable t = throwable; t != null; t = t.getCause()) {
      StackTraceElement[] stackTrace = t.getStackTrace();
      List<StackTraceElement> pruned = Lists.newArrayList();
      for (StackTraceElement element : stackTrace) {
        String className = element.getClassName();
        if (!AOP_INTERNAL_CLASSES.contains(className) && !className.contains("$EnhancerByGuice$")) {
          pruned.add(element);
        }
      }
      t.setStackTrace(pruned.toArray(new StackTraceElement[pruned.size()]));
    }
  }
private void pruneStacktrace(Throwable throwable) {
    for (Throwable t = throwable; t != null; t = t.getCause()) {
      StackTraceElement[] stackTrace = t.getStackTrace();
      List<StackTraceElement> pruned = Lists.newArrayList();
      for (StackTraceElement element : stackTrace) {
        String className = element.getClassName();
        if (!AOP_INTERNAL_CLASSES.contains(className) && !className.contains("$EnhancerByGuice$")) {
          pruned.add(element);
        }
      }
      t.setStackTrace(pruned.toArray(new StackTraceElement[pruned.size()]));
    }
  }
Removes stacktrace elements related to AOP internal mechanics from the throwable's stack trace
and any causes it may have.