为什么 Eclipse 要使用自己开发的编译器(ECJ) 而不用 Javac？

Annie Dillard's Classic Essay: 'Total Eclipse'

The greatest racehorse of the 18th century was allegedly born during the 1764 solar eclipse, which tracked from Iberia to Scandinavia, at noon on April Fool’s Day. He was named, appropriately, Eclipse, and had a brief racing career of just 17 months. At that point he had to be retired, not for any physical reason, but because he won so consistently that no one bet on any other horse.

To date five manufacturers have certified that their eclipse glasses and handheld solar viewers meet the ISO 12312-2 international standard for such products: Rainbow Symphony American Paper Optics Thousand Oaks Optical TSE 17 Baader Planetarium (AstroSolar Silver/Gold film only)