He and Li designed plugin returns http status 400 for sal-service add-flow rcp

build: http://nexus.opendaylight.org/content/repositories/opendaylight.snapshot/org/opendaylight/integration/distribution-karaf/0.3.0-SNAPSHOT//distribution-karaf-0.3.0-20150608.152327-2387.tar.gz

installed features: odl-openflowplugin-flow-services-ui

steps to reproduce:
against prepared running karaf run:

pybot -v CONTROLLER:10.25.2.9 -v MININET:127.0.0.1 -v MININET_USER:mininet -v USER_HOME:/home/mininet -v RESTCONFPORT:8181 tools/OF_Test/robot_suites/998_Independent_OF_Tests_ovs/020_Flow_Data_Tests.txt csit/suites/openflowplugin/Flows_OF13 csit/suites/openflowplugin/Flows_Stats_OF13 csit/suites/openflowplugin/Flows_Additional_TCs/Stat_Manager_extended

pay attention on last Stat_Manager_extended suite results

no exceptions in the log