@Test
public void testExecute_testException() throws Exception {

	ReloadConfigurationCommand cmd = new ReloadConfigurationCommand();
	IReconfigurable r1 = Mockito.mock( IReconfigurable.class );
	Mockito.doThrow( new RuntimeException( "for test" )).when( r1 ).reconfigure();
	cmd.reconfigurables = Arrays.asList( r1 );
	Assert.assertNull( cmd.execute());
	Mockito.verify( r1, Mockito.only()).reconfigure();
}