Saml 2.0 certificate expiration date using java

Use below code to get expiration date of saml certificate

String certificate = "Your SAML 2.0 certificate here";
CertificateFactory fty = CertificateFactory.getInstance("X.509");
ByteArrayInputStream bais = new ByteArrayInputStream(Base64.decodeBase64(certificate.getBytes()));
X509Certificate idp_cert = (X509Certificate) fty.generateCertificate(bais);

System.out.println("Expiration date---"+ idp_cert.getNotAfter());

It would look like:

String certificate = "MIIDpDCCAoygAwIBAgIGAVFrmYh8MA0GCSqGSIb3DQEBBQUAMIGSMQswCQYDVQQGEwJVUzETMBEG"+
                    "A1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNU2FuIEZyYW5jaXNjbzENMAsGA1UECgwET2t0YTEU"+
                    "MBIGA1UECwwLU1NPUHJvdmlkZXIxEzARBgNVBAMMCmRldi04OTgwMzgxHDAaBgkqhkiG9w0BCQEW"+
                    "DWluZm9Ab2t0YS5jb20wHhcNMTUxMjA0MDYwNTQyWhcNMjUxMjA0MDYwNjQyWjCBkjELMAkGA1UE"+
                    "BhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xDTALBgNV"+
                    "BAoMBE9rdGExFDASBgNVBAsMC1NTT1Byb3ZpZGVyMRMwEQYDVQQDDApkZXYtODk4MDM4MRwwGgYJ"+
                    "KoZIhvcNAQkBFg1pbmZvQG9rdGEuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA"+
                    "o79hx758z1uoUuV4C0wXlwKrSCzGhLvuNW/h5/1VB9svfFKs7zZ3b+dLoP3DptiL8CtNxQbH7nMS"+
                    "hwQHkoHMUlVI9X/I2FAptQcMNh4bmbNBh+L6/3fopxG4AEdt/25rjDu8lgfG/9kpGuJ4OJLH3cJZ"+
                    "MgToKUBz5+T85O4fBs5moANJyRFlvg3xwW6oQ7ufTTEM/t80zc/MpPMTfHqaiU+MHjaTeTT3FZdB"+
                    "cutp+HHjMND9EnR7hC6bzO1aDSGHxw+z3gbIbu1vSAUakB4qU6rStTOgmYPx8rAZh8dFTrLv2aKL"+
                    "SxLBHylhB9Fou8QknlKWT1p753eQikcKQiM/6wIDAQABMA0GCSqGSIb3DQEBBQUAA4IBAQA2IiqR"+
                    "FM1Odhzj86F56dXZ1DXYZXRDl77nqcbghbzkuMm7+LShC6zGSORVh4APpYKGKOK3Y/DN78/kixfH"+
                    "XUWNuCdk5vpGdBgOf2ipVIeY+BuqFJpNeWL4Udldcp7cOTVpZW/mmZZSMyxppeJ7qolS2LLdwo0U"+
                    "Vn7l6QgNkA7q2MFGcSjw/GfTks+aEozj5vkMo33ESt5MEY0xixAtCql4p0j56U7MtRKkwczl3Ou4"+
                    "rbS4NtPiqLZ3/DQAaGgNgQo9z7kHvOlpbwbwBX3dCrFWEfkHUBf6ccTeVOvRt39IGGzcNcAxyV63"+
                    "Yzfcw6H3SFnOUNINHcpEMCkK1viGiaeV";

        CertificateFactory fty = CertificateFactory.getInstance("X.509");
        ByteArrayInputStream bais = new    ByteArrayInputStream(Base64.decodeBase64(certificate.getBytes()));
        X509Certificate idp_cert = (X509Certificate) fty.generateCertificate(bais);
        System.out.println(idp_cert.getNotAfter());