Jenkins set log rotators

findBuilds.groovy

jenkins.model.Jenkins.instance.getAllItems().each {
  if ( it.getClass() != com.cloudbees.hudson.plugins.folder.Folder && it.getClass() != org.jenkinsci.plugins.workflow.multibranch.WorkflowMultiBranchProject ){
    try {
      if (it.getLastBuild().number != null && it.getLastBuild().number > 10 ){
            if(it.getLogRotator() == null){
              println it.getFullName() + " Build number " + it.getLastBuild().number;
              if(it.getClass() != org.jenkinsci.plugins.workflow.job.WorkflowJob){
                println ' ---> Setting a log rotator that will delete any artifacts/builds older than number 200'
              	//job.logRotator = new hudson.tasks.LogRotator ( null, 200, 00, 200)
              }
              if(it.getClass() == org.jenkinsci.plugins.workflow.job.WorkflowJob){
                println ' ---> Workflow job. Setting a log rotator that will keep all artifacts to day/number 99999'
              	//job.logRotator = new hudson.tasks.LogRotator ( null, 200, 99999, 999999)
              }
            }
      }
    }catch(java.lang.NullPointerException ex){ 
    }
  }
 }
return null