Exception from MetricsLite on Bukkit 1.7.2

[rlf]

22.04 09:12:37 [Server] INFO ... 3 more
22.04 09:12:37 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
22.04 09:12:37 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:58)
22.04 09:12:37 [Server] INFO at dk.lockfuglsang.xrayhunter.metrics.MetricsLite$1.run(MetricsLite.java:175)
22.04 09:12:37 [Server] INFO at dk.lockfuglsang.xrayhunter.metrics.MetricsLite.access$200(MetricsLite.java:53)
22.04 09:12:37 [Server] INFO at dk.lockfuglsang.xrayhunter.metrics.MetricsLite.postPlugin(MetricsLite.java:287)
22.04 09:12:37 [Server] INFO Caused by: java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
22.04 09:12:37 [Server] INFO at java.lang.Thread.run(Thread.java:745)
22.04 09:12:37 [Server] INFO at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
22.04 09:12:37 [Server] INFO at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
22.04 09:12:37 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
22.04 09:12:37 [Server] WARN org.apache.commons.lang.UnhandledException: Plugin XRayHunter v1.0.2 generated an exception while executing task 83
22.04 09:12:37 [Server] WARN Exception in thread "Craft Scheduler Thread - 14"