Using spacewalk 1.6 I am getting an error using the listSystemEvents. The error: <Fault -1: 'redstone.xmlrpc.XmlRpcFault: unhandled internal exception: [B cannot be cast to java.sql.Blob'> My script: #!/usr/bin/python import xmlrpclib import pprint pp = pprint.PrettyPrinter(indent=4) SATELLITE_URL = "<a href="http://localhost/rpc/api">http://localhost/rpc/api</a>" SATELLITE_LOGIN = "script" SATELLITE_PASSWORD = "scriptpassword" client = xmlrpclib.Server(SATELLITE_URL, verbose=0) key = client.auth.login(SATELLITE_LOGIN, SATELLITE_PASSWORD) systemEvents = client.system.listSystemEvents(key,1000010107) pp.pprint(systemEvents) client.auth.logout(key) The full output: Traceback (most recent call last): File "./repeat316Test.py", line 12, in <module> systemEvents = client.system.listSystemEvents(key,1000010107) File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__ return self.__send(self.__name, args) File "/usr/lib64/python2.7/xmlrpclib.py", line 1570, in __request verbose=self.__verbose File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request return self.single_request(host, handler, request_body, verbose) File "/usr/lib64/python2.7/xmlrpclib.py", line 1297, in single_request return self.parse_response(response) File "/usr/lib64/python2.7/xmlrpclib.py", line 1468, in parse_response return u.close() File "/usr/lib64/python2.7/xmlrpclib.py", line 793, in close raise Fault(**self._stack[0]) xmlrpclib.Fault: <Fault -1: 'redstone.xmlrpc.XmlRpcFault: unhandled internal exception: [B cannot be cast to java.sql.Blob'> from /var/log/tomcat6/catalina.out: 2012-03-09 19:00:19,407 [TP-Processor7] ERROR com.redhat.rhn.frontend.xmlrpc.BaseHandler - Caused by: java.lang.ClassCastException: [B cannot be cast to java.sql.Blob at com.redhat.rhn.frontend.xmlrpc.system.SystemHandler.listSystemEvents(SystemHandler.java:2120) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at com.redhat.rhn.frontend.xmlrpc.BaseHandler.invoke(BaseHandler.java:108) at redstone.xmlrpc.XmlRpcDispatcher.dispatch(XmlRpcDispatcher.java:123) at com.redhat.rhn.frontend.xmlrpc.RhnXmlRpcServer.execute(RhnXmlRpcServer.java:54) at com.redhat.rhn.frontend.xmlrpc.XmlRpcServlet.doPost(XmlRpcServlet.java:162) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129) at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.redhat.rhn.frontend.servlets.LocalizedEnvironmentFilter.doFilter(LocalizedEnvironmentFilter.java:67) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.redhat.rhn.frontend.servlets.EnvironmentFilter.doFilter(EnvironmentFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.redhat.rhn.frontend.servlets.SessionFilter.doFilter(SessionFilter.java:55) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.redhat.rhn.frontend.servlets.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:97) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:679) Mar 9, 2012 7:00:19 PM redstone.xmlrpc.XmlRpcDispatcher writeError WARNING: redstone.xmlrpc.XmlRpcFault: unhandled internal exception: [B cannot be cast to java.sql.Blob