Both java.time API and older Date/https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html[Calendar] API should be available in the Pipeline. The former has to be imported explicitly while the later is imported by default.
How do I get the current time?
import java.time.* def now = LocalDateTime.now() println now
def now = new Date() println now
How do I format the date?
import java.time.* import java.time.format.DateTimeFormatter def now = LocalDateTime.now() println now.format(DateTimeFormatter.ofPattern("yyyyMMddHHmm"))
def now = new Date() println now.format("yyyyMMddHHmm")
NOTE: Some API signatures might not be white listed which will cause
RejectedAccessException. You will need to approve this with Script Approval (
JENKINS_URL/scriptApproval). Feel free to create a JIRA ticket for allowlisting the API in question in script-security plugin.