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    java.lang.NullPointerException
        at org.cloudfoundry.autoscaler.metric.bean.CFInstanceStats$Usage.getTime(CFInstanceStats.java:170)
        at org.cloudfoundry.autoscaler.metric.poller.CFAppStatsPoller.getAppStats(CFAppStatsPoller.java:237)
        at org.cloudfoundry.autoscaler.metric.poller.CFAppStatsPoller.run(CFAppStatsPoller.java:126)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
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