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);
}
}