I am getting this exception intermittently while making HTTP request to third-party APIs :
Exception trace stack is:
Error sending HTTP request. (org.mule.api.MessagingException)
java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:719)
java.util.LinkedHashMap$LinkedValueIterator.next(LinkedHashMap.java:747)
java.util.AbstractCollection.addAll(AbstractCollection.java:343) java.util.LinkedHashSet.(LinkedHashSet.java:169)
com.ning.http.client.FluentCaseInsensitiveStringsMap.keySet(FluentCaseInsensitiveStringsMap.java:341)
org.mule.module.http.internal.request.grizzly.GrizzlyHttpClient.createMuleResponse(GrizzlyHttpClient.java:347)
org.mule.module.http.internal.request.grizzly.GrizzlyHttpClient.send(GrizzlyHttpClient.java:267)
com.mulesoft.mule.http.request.grizzly.EEGrizzlyHttpClient.send(EEGrizzlyHttpClient.java:104) (194 more...)
(set debug level logging or '-Dmule.verbose.exceptions=true' for everything)
We are not able to find the root cause of this issue as no code change is done. Could you please help us to resolve it