[josho]

True, but if you are running something like WebSphere or Weblogic then upgrading your JVM invalidates product support. So, now you have to upgrade product versions, which often requires changes to deployment scripts, breaking changes in those products, new software licenses, etc.

Having said that being on and old supported version of these products means you are at least enjoying Java 6.

[kpil]

... and we use WebSphere 7 because we like to read hackernews while publishing our code ...

[pjmlp]

You lucky ones!

My last contact with Websphere was in 2014 and the customer was still using 6.1 on their production servers.