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java.lang.NullPointerException: 	at java.io.File.(File.java:277)	at com.ligadata.MetadataAPI.MetadataAPIImpl$.DownloadJarFromDB(MetadataAPIImpl.scala:1310)	at com.ligadata.MetadataAPI.ModelUtils$.LoadModelIntoCache(ModelUtils.scala:2687)	at com.ligadata.MetadataAPI.MetadataAPIImpl$.LoadModelIntoCache(MetadataAPIImpl.scala:3032)	at com.ligadata.MetadataAPI.MetadataAPIImpl$.com$ligadata$MetadataAPI$MetadataAPIImpl$$updateThisKey(MetadataAPIImpl.scala:3098)	at com.ligadata.MetadataAPI.MetadataAPIImpl$$anonfun$UpdateMdMgr$2.apply(MetadataAPIImpl.scala:3249)	at com.ligadata.MetadataAPI.MetadataAPIImpl$$anonfun$UpdateMdMgr$2.apply(MetadataAPIImpl.scala:3244)	at scala.collection.immutable.List.foreach(List.scala:381)	at com.ligadata.MetadataAPI.MetadataAPIImpl$.UpdateMdMgr(MetadataAPIImpl.scala:3244)	at com.ligadata.KamanjaManager.KamanjaMetadata$MetadataUpdate.run1(KamanjaMetadata.scala:1138)	at com.ligadata.KamanjaManager.KamanjaMetadata$MetadataUpdate.run(KamanjaMetadata.scala:1112)	at scala.actors.threadpool.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1060)	at scala.actors.threadpool.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:574)	at java.lang.Thread.run(Thread.java:745)