Reduce number of entries from Excecution enviornment in run configuration

[vogella]

JDT has removed support for Java < 8. Maybe we should also remove the entries from execution environment. Also we may want to sort revert so that the latest entries are on the top.

[laeubi]

JDT has removed support for Java < 8

It only has removed support for compiling (!) you still can run code with pre java 8 (not that I think it is much of relevance today) beside that an older Execution Environment can be bound to a newer JDK (as already seen in your screenshot).

[vogella]

So you are against reducing these entries @laeubi?

[laeubi]

I just wanted to note that runtime is not the same as compile time. Apart from that I'm not even sure this is managed by PDE, I think thats provided by JDT anyways, e.g. in a plain java application launch I have the same choices here