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update from 4.7.7 to 4.8.5


I’m planning to update my WSE ver 4.7.7 running on AWS EC2 (byol) on a c3-2xlarge instance WSE 4.8.5.

I am aware that the new version of WSE requires OpenJDK Java SE JRE 9.0.4 to work.

Because I was uncertain on how to install the new version of Java, I reached out for some technical help and was told that my OS is too old and that JRE 9 cannot be installed and therefore my instance cannot be upgraded

I have been running this instance in a production environment for many years and have performed many updates since 4,.4.0 versions without issues

It would cause my a lot of consternation and grief if I were to have to abandon this server and have to start from scratch as it is configured for many vHosts and many custom settings

Is it possible that the advice I was given is incorrect ?

I would appreciate receiving your advice



It’s indeed possible that your OS is too old to use OpenJDK9. What OS version do you have? (in case of Linux you can check with “sudo lsb_release -a” or check the os_release file in the /etc folder)

Hi Kabel,

Thanks again for your reply

I guess i’ll have to bite the bullet and migrate to a EC2 4,8 WSE instance then


Indeed, Amazon Linux 2018.03 supports OpenJDK 8 as the highest version and (long-term) support for 2018.03 stopped in June this year. See

So it’s highly recommended that you migrate to a new Amazon Linux 2 machine with support for OpenJDK 9. If you need help with that; you may post a message in the “Find A Consultant” forums:

Hi Karel

Thanks for your reply

This is the info in the os_release file:

NAME=“Amazon Linux AMI”



ID_LIKE=“rhel fedora”


PRETTY_NAME=“Amazon Linux AMI 2018.03”