Eclipse on startup error: Could not start DDT

[zonkie]

Using DDT on Eclipse on Windows 10.
On Eclipse startup: "Could not start DDT because Java version is: 
0. Need at least Java 8." which is similar to error at
https://github.com/GoClipse/goclipse/issues/256 (found with 
Google).
I earlier retrograded Java to 10, for previous error with finding 
Java in path, which cleared up the previous error, but it doesn't 
make sense that Java 11 should have path problems.

-Zonkie