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java.lang.IllegalArgumentException: host parameter is null	at org.apache.commons.httpclient.HttpConnection.(HttpConnection.java:220)	at org.apache.commons.httpclient.HttpConnection.(HttpConnection.java:190)	at org.apache.commons.httpclient.SimpleHttpConnectionManager.getConnection(SimpleHttpConnectionManager.java:102)	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:613)	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:497)	at com.splwg.base.messaging.impl.RealtimeHTTPSender.attemptToSend(RealtimeHTTPSender.java:185)	at com.splwg.base.messaging.impl.RealtimeHTTPSender.executeMethod(RealtimeHTTPSender.java:153)	at com.splwg.base.messaging.impl.RealtimeHTTPSender.sendUsingGet(RealtimeHTTPSender.java:84)	at com.splwg.base.messaging.impl.RealtimeHTTPSender.send(RealtimeHTTPSender.java:59)	at com.splwg.base.domain.integration.RealtimeOutboundMessage_Impl.send(RealtimeOutboundMessage_Impl.java:380)	at com.splwg.base.domain.integration.RealtimeOutboundMessage_Impl.create(RealtimeOutboundMessage_Impl.java:218)