if (Configuration.DEBUG)
  private PKIXCertPathValidatorResult validate(CertPathValidator validator,                                               X509CertPath certPath,                                               PKIXParameters params)  {    log.entering(this.getClass().getName(), "validate"); //$NON-NLS-1$    PKIXCertPathValidatorResult result = null;    if (params != null)      try        {          result = (PKIXCertPathValidatorResult) validator.validate(certPath,                                                                    params);        }      catch (Exception x)        {          log.log(Level.FINE, "Exception in validate(). Ignore", x); //$NON-NLS-1$        }    log.exiting(this.getClass().getName(), "validate", result); //$NON-NLS-1$    return result;  }