Issue

• CloudBees Jenkins Enterprise is asking to register product but you already have a license
• You get a similar stacktrace than the one below:

Subscription is not yet active for another 19 yr 
java.security.cert.CertificateNotYetValidException: NotBefore: Mon Jan 26 15:01:10 EST 2015 
at sun.security.x509.CertificateValidity.valid(CertificateValidity.java:269) 
at sun.security.x509.X509CertImpl.checkValidity(X509CertImpl.java:575) 
at sun.security.x509.X509CertImpl.checkValidity(X509CertImpl.java:548) 
at hudson.license.License.(License.java:155) 

Environment

• CloudBees Jenkins Enterprise

Resolution

This stack trace happens when the system date of your CloudBees Jenkins Enterprise master is wrong, usually by some years before the right date.