(Java) Find Certificate for Email Address in Current-User Certificate Store (Windows-Only)

This is a Windows-only example to find a certificate for a given email address in the current-user certificate store (located in the Windows Registry).

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This is a Windows-only example because it lists the certificates
    // stored in the Windows Current User Certificate Store located in the
    // Windows Registry.

    CkCertStore certStore = new CkCertStore();

    boolean readOnly = true;
    boolean success = certStore.OpenCurrentUserStore(readOnly);
    if (success == false) {
        System.out.println(certStore.lastErrorText());
        return;
        }

    String emailAddr = "support@chilkatsoft.com";
    CkCert cert = certStore.FindCertBySubjectE(emailAddr);
    if (certStore.get_LastMethodSuccess() != true) {
        System.out.println("No certificate found for " + emailAddr);
        return;
        }

    System.out.println("Found: " + cert.subjectDN());

    // It should be case-insensitive, however it was found not to be.
    // The case-insensitive search is fixed starting in Chilkat v9.5.0.65.
    emailAddr = "SUPPORT@chilkatsoft.com";
    cert = certStore.FindCertBySubjectE(emailAddr);
    if (certStore.get_LastMethodSuccess() != true) {
        System.out.println("No certificate found for " + emailAddr);
        return;
        }

    System.out.println("Found: " + cert.subjectDN());
  }
}