@Test
public void getAllX509Certificates() throws IOException, NoSuchAlgorithmException, CertificateException, KeyStoreException, InvalidAlgorithmParameterException {

	
assLoader classLoader = getClass().getClassLoader();
ring fileName="cacerts";
ring fileNameKeyStore=classLoader.getResource(fileName).getFile();	
th file = new Path(fileNameKeyStore);
inkKeyStoreManager fksm = new FlinkKeyStoreManager();
sm.openKeyStore(file, "JKS", "changeit");
 get most trusted certificates
t<X509Certificate> mostTrustedCAList=fksm.getAllX509Certificates();
sertEquals(104,mostTrustedCAList.size(),"Most trusted CA list has length 104");
}