Time for an 2014 update…

Task/Priority-queue/Groovy/priority-queue.groovy

@@ -0,0 +1,18 @@
+import groovy.transform.Canonical
+
+@Canonical
+class Task implements Comparable<Task> {
+    int priority
+    String name
+    int compareTo(Task o) { priority <=> o?.priority }
+}
+
+new PriorityQueue<Task>().with {
+    add new Task(priority: 3, name: 'Clear drains')
+    add new Task(priority: 4, name: 'Feed cat')
+    add new Task(priority: 5, name: 'Make tea')
+    add new Task(priority: 1, name: 'Solve RC tasks')
+    add new Task(priority: 2, name: 'Tax return')
+
+    while (!empty) { println remove() }
+}