### Question:
X509Cert implements Serializable { public String getSerial() { String serial = Hex.toHexString(originalCert.getSerialNumber().toByteArray()); logger.debug("Serial number: " + serial); return serial; } X509Cert(X509Certificate cert);   X509Cert(String path); List<String> getCertificatePolicies(); X509Certificate getX509Certificate(); String issuerName(Issuer part); String issuerName(); boolean isValid(Date date); boolean isValid(); List<KeyUsage> getKeyUsages(); String getSerial(); String getSubjectName(SubjectName part); String getSubjectName();  }### Answer:
@Test public void testGetSerialNumber() { Assert.assertEquals("530be41bbc597c44570e2b7c13bcfa0c", this.certificate.getSerial()); }