protected StringBuilder addParam(StringBuilder jvmArguments, String param) {
		if (StringUtils.isEmpty(param)) {
			return jvmArguments;
		}
		return jvmArguments.append(" -Dparam=").append(param).append(" ");
	}
Build JVM Arguments.

@return generated jvm arguments
ngrinder-core/src/main/java/net/grinder/engine/agent/PropertyBuilder.java