Cancel jenkins jobs except newest

gistfile1.txt

https://stackoverflow.com/a/39635794

def q = Jenkins.instance.queue
//Find items in queue that match <project name>
def queue = q.items.findAll { it.task.name.startsWith('sample_project') }
//get all jobs id to list
def queue_list = []
queue.each { queue_list.add(it.getId()) }
//sort id's, remove last one - in order to keep the newest job, cancel the rest
queue_list.sort().take(queue_list.size() - 1).each { q.doCancelItem(it) }