java.util.concurrent.ExecutionException: java.lang.NullPointerException

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  • java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:188) at com.mapr.synth.Synth.main(Synth.java:114) Caused by: java.lang.NullPointerException at com.mapr.synth.samplers.NameSampler.sample(NameSampler.java:80) at com.mapr.synth.samplers.NameSampler.sample(NameSampler.java:24) at com.mapr.synth.samplers.SchemaSampler.sample(SchemaSampler.java:69) at com.mapr.synth.Synth$ReportingWorker.generateFile(Synth.java:207) at com.mapr.synth.Synth$ReportingWorker.call(Synth.java:171) at com.mapr.synth.Synth$ReportingWorker.call(Synth.java:125) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
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