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CertPathValidator

import java.io.FileInputStream; import java.security.cert.CertPath; import java.security.cert.CertPathValidator; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; import java.security.cert.PKIXCertPathValidatorResult; import java.security.cert.PKIXParameters; import java.security.cert.TrustAnchor; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.Collections; import java.util.List; public class Main{   public static void main(String args[]) throws Exception {     CertificateFactory cf = CertificateFactory.getInstance("X.509");     List mylist = new ArrayList();     FileInputStream in = new FileInputStream(args[0]);     Certificate c = cf.generateCertificate(in);     mylist.add(c);     CertPath cp = cf.generateCertPath(mylist);     Certificate trust = cf.generateCertificate(in);     TrustAnchor anchor = new TrustAnchor((X509Certificate) trust, null);     PKIXParameters params = new PKIXParameters(Collections.singleton(anchor));     params.setRevocationEnabled(false);     CertPathValidator cpv = CertPathValidator.getInstance("PKIX");     PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv.validate(cp, params);     System.out.println(result);   } }