Arduino IDE 1.x
HOTFIX:
Reverted the bundled Java JRE to the latest freely redistributable Oracle JRE for all platforms except:
Switching to AdoptJDK demonstrated to be more challenging than expected, bringing in some corner case bugs that were not being caught by our testing procedures:
To guarantee the best user experience we decided to revert to the latest working JRE until all the issues are resolved.
Improved visualization of compiler errors (@matthijskooijman)
Fixed: "Comparison method violates its original contract" error in library manager
Serial monitor is no more cleared during upload, so it can be copy/pasted (@PaulStoffregen)