MulticastSocket receiving NullPointerException

[VishV-Android]

Getting NPE in MulticastSocket.
version 2.5.1

Exception java.lang.NullPointerException: Attempt to invoke virtual method 'void java.net.MulticastSocket.receive(java.net.DatagramPacket) on a null object reference
at io. resourcepool.ssdp.client.impl.5sdpClientImpl$3.run (SsdpClientImpl.java:121)
at java.util.concurrent.ThreadPoolExecutor.runworker (ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644)
at java.lang.Thread.run (Thread.java:1012)