Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

java.lang.NullPointerException at de.timroes.axmlrpc.serializer.SerializerHandler.serialize(SerializerHandler.java:221) at de.timroes.axmlrpc.serializer.StructSerializer.serialize(StructSerializer.java:99) at de.timroes.axmlrpc.serializer.SerializerHandler.serialize(SerializerHandler.java:224) at de.timroes.axmlrpc.Call.getXMLParam(Call.java:88) at de.timroes.axmlrpc.Call.getXML(Call.java:64) at de.timroes.axmlrpc.XMLRPCClient$Caller.call(XMLRPCClient.java:659) at de.timroes.axmlrpc.XMLRPCClient$Caller.run(XMLRPCClient.java:587)