code: private void setPreviousExceptionInfo(Throwable previousException) {
          if (previousException instanceof com.ibm.websphere.exception.DistributedExceptionEnabled) {
              previousExceptionInfo = ((DistributedExceptionEnabled) previousException).getExceptionInfo();
          } else {
              previousExceptionInfo = new DistributedExceptionInfo(previousException);
          }
      }
docs: Set the previous exception info object.
  
  @param newPreviousExceptionInfo com.ibm.websphere.exception.DistributedExceptionInfo