Github user kishorvpatil commented on a diff in the pull request: https://github.com/apache/storm/pull/1699#discussion_r79851428 --- Diff: storm-core/src/jvm/org/apache/storm/daemon/supervisor/timer/SupervisorHeartbeat.java --- @@ -72,10 +72,10 @@ private SupervisorInfo buildSupervisorInfo(Map<String, Object> conf, Supervisor private Map<String, Double> mkSupervisorCapacities(Map conf) { Map<String, Double> ret = new HashMap<String, Double>(); - Double mem = (double) (conf.get(Config.SUPERVISOR_MEMORY_CAPACITY_MB)); - ret.put(Config.SUPERVISOR_MEMORY_CAPACITY_MB, mem); - Double cpu = (double) (conf.get(Config.SUPERVISOR_CPU_CAPACITY)); - ret.put(Config.SUPERVISOR_CPU_CAPACITY, cpu); + Number mem = (Number) (conf.get(Config.SUPERVISOR_MEMORY_CAPACITY_MB)); + ret.put(Config.SUPERVISOR_MEMORY_CAPACITY_MB, mem.doubleValue()); + Number cpu = (Number) (conf.get(Config.SUPERVISOR_CPU_CAPACITY)); --- End diff -- Possibility of NPE here. Can we use utils method to do this.
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