java.lang.NullPointerException

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  • java.lang.NullPointerException at water.persist.PersistHdfs.addFolder(PersistHdfs.java:272) at water.persist.PersistHdfs.addFolder(PersistHdfs.java:266) at water.api.ImportHdfs.serve(ImportHdfs.java:52) at water.api.Request.serve(Request.java:142) at water.api.RequestServer.serve(RequestServer.java:198) at water.NanoHTTPD$HTTPSession.run(NanoHTTPD.java:391) at java.lang.Thread.run(Thread.java:662)
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