Include dependency in your pom.xml:
<dependency>
<groupId>net.klakegg.pkix</groupId>
<artifactId>pkix-ocsp</artifactId>
<version>0.9.0</version>
</dependency>
Create your own validator:
// Create OCSP Client using builder.
OcspClient client = OcspClient.builder()
.set(OcspClient.EXCEPTION_ON_UNKNOWN, false) // Remove to trigger exception on 'UNKNOWN'.
.set(OcspClient.EXCEPTION_ON_REVOKED, false) // Remove to trigger exception on 'REVOKED'.
.build();
// Verify certificate (issuer certificate required).
CertificateResult response = client.verify(certificate, issuer);
// Prints 'GOOD', 'REVOKED' or 'UNKNOWN'.
System.out.println(response.getStatus());