java.lang.NoClassDefFoundError: Could not initialize class com.metamx.tranquility.druid.DruidBeams$

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java.lang.NoClassDefFoundError: Could not initialize class com.metamx.tranquility.druid.DruidBeams$
at com.metamx.tranquility.druid.DruidBeams.builder(DruidBeams.scala)
at io.weblytics.backend.enricher.bolt.DruidBoltFactory.makeBeam(DruidBoltFactory.java:57)
at io.weblytics.backend.enricher.bolt.DruidBeamBolt.prepare(DruidBeamBolt.java:48)
at backtype.storm.daemon.executor$fn__3441$fn__3453.invoke(executor.clj:692)
at backtype.storm.util$async_loop$fn__464.invoke(util.clj:461)
at clojure.lang.AFn.run(AFn.java:24)
at java.lang.Thread.run(Thread.java:745)

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