java - gettting JRE system library unbound error in build path - Stack Overflow: "Another option is:
Project > Properties > Java Build Path
Select Libraries tab
Select the troublesome JRE entry
Click Edit button
Choose an alternate JRE
Click Finish button
Pointing the project at your installed JRE might be a better choice than renaming your JRE to match the old project code."
'via Blog this'