10.523 instances of "net.citizensnpcs.nms.v1_12_R1.entity.EntityHumanNPC", loaded by "org.bukkit.plugin.java.PluginClassLoader @ 0x5171425a8" occupy 413.796.184 (13,55%) bytes. These instances are referenced from one instance of "java.util.HashMap$Node[]", loaded by "<system class loader>"

Keywords
org.bukkit.plugin.java.PluginClassLoader @ 0x5171425a8
java.util.HashMap$Node[]
net.citizensnpcs.nms.v1_12_R1.entity.EntityHumanNPC