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java.lang.IllegalArgumentException: host parameter is null at org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:206) at org.apache.commons.httpclient.HttpConnection.<init>(HttpConnection.java:155) at org.apache.commons.httpclient.SimpleHttpConnectionManager.getConnectionWithTimeout(SimpleHttpConnectionManager.java:175) at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:153) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)