java.lang.NullPointerException: This exception has no message.

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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$2.apply(MetadataAPIImpl.scala:3244)
at com.ligadata.MetadataAPI.MetadataAPIImpl$.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 java.lang.Thread.run(Thread.java:745)

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