fix issue 219
fix issue 219

ptrd/jmeter-plugins,Sausageo/jmeter-plugins,ptrd/jmeter-plugins,Sausageo/jmeter-plugins,ptrd/jmeter-plugins,Sausageo/jmeter-plugins,ptrd/jmeter-plugins,ptrd/jmeter-plugins,Sausageo/jmeter-plugins,Sausageo/jmeter-plugins