public static boolean getParamBoolean() {
		return BooleanUtils.toBoolean(getParam("false"));
	}
Get the parameter passed by controller. When it's executed in the
validation mode, always returns the given default value(false).

@return param. false if the param was not provided.
@since 3.2.3
ngrinder-runtime/src/main/java/net/grinder/util/GrinderUtils.java