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java.lang.RuntimeException: This shouldn't happen at org.ddogleg.clustering.kmeans.InitializePlusPlus.selectNextSeed(InitializePlusPlus.java:97) at org.ddogleg.clustering.kmeans.InitializePlusPlus.selectSeeds(InitializePlusPlus.java:75) at org.ddogleg.clustering.kmeans.StandardKMeans_F64.process(StandardKMeans_F64.java:140) at KMeansFailsSeeding.main(KMeansFailsSeeding.java:30)