The same question has been discussed in the following post in more details:AEM6.2 Can you create a static page template and editable page templates on the same site?

The link is up and running now. Please check

Adding to what Jaideep mentioned, to understand if the vulnerability you are referring to is fixed in Apache v2.4 you can consult the following document. In case the vulnerability is fixed then upgrading to v2.4 should address the vulnerability.httpd 2.4 vulnerabilities - The Apache HTTP Server Proj...

If this growth seems unusual I recommend to understand the reason by analyzing the unusual repository growth [1] then you will be able to take the action to address it.[1] Analyze unusual repository growth

Please check the following article where provide details on how to create a Granite/Coral 6.3 Multifield. there is a sample attached so you can compare it with what you have.Creating a Granite/Coral 6.3 Multifield HTL component for Adobe Experience Manager

If you are connected to this machine as admin then the last thing that I can think of is that the .jar file is somehow corrupted. 

you should lower the -Xmxuse this command > java -jar -Xmx1024m aem64-author-p4564.jarNote: if your machine does not have a good hardware spec it may take up to a couple min for the page to come up.

Can you do the following:- change the name of the .jar file (assuming its an author environment) > aem64-author-p4564.jar- run the command > java -jar -Xmx4G aem64-author-p4564.jar

Your JDK seems alright.Can you provide the command/script you used to run the .jar file ?

1. Can you post the output of java -version ?2. Are you running quickstart as root/admin ?