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java.lang.NullPointerException: Name is null at java.lang.Enum.valueOf(Unknown Source) at org.jivesoftware.smack.packet.RosterPacket$ItemType.valueOf(RosterPacket.java:268) at org.jivesoftware.smack.PacketReader.parseRoster(PacketReader.java:697) at org.jivesoftware.smack.PacketReader.parseIQ(PacketReader.java:582) at org.jivesoftware.smack.PacketReader.parsePackets(PacketReader.java:275) at org.jivesoftware.smack.PacketReader.access$000(PacketReader.java:44) at org.jivesoftware.smack.PacketReader$1.run(PacketReader.java:76)