Issue occured after an upgrade to one of the plugin - CucumberReports which in turn upgraded pipeline plugins after which the issue occured. Cucumber Report plugin has been uninstalled now.

Logs - 

FATAL: org/jenkinsci/plugins/workflow/job/WorkflowRun
java.lang.NoClassDefFoundError: org/jenkinsci/plugins/workflow/job/WorkflowRun
at org.jenkinsci.plugins.workflow.job.WorkflowJob$SCMListenerImpl.onCheckout(WorkflowJob.java:621)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:609)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
at hudson.model.Run.execute(Run.java:1741)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:531)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:410)

Circumstance - getting the issue on running any job.