Fix unit tests in headless mode
Fix unit tests in headless mode

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