Getting memory leak error when upgrading hazelcast version to 3.11 from 3.10.7

[dipyadav1]

SEVERE [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [coupon] created a ThreadLocal with key of type [com.amazonaws.util.XmlUtils$1] (value [com.amazonaws.util.XmlUtils$1@51a8c509]) and a value of type [com.ctc.wstx.stax.WstxInputFactory] (value [com.ctc.wstx.stax.WstxInputFactory@5f358107]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.