First of all. You posted in a thread that has nothing to do with your issue
Second of all. This thread is old (last post is from 2014). It would probably have been better to create a new thread even if your problem was related
Third of all. You did not provide enough information for others to help you. What is exactly the problem and can we get a full log?
The line you posted just mentions that you use at least java 8 and wanted to set the PermSize to 256m. However, there is no error as setting the permsize isn't needed anymore since java 8 which is why this setting is ignored and you get that line in your log.