As a general rule, are Java compilers localised? Are the compilers capable of emitting errors/warnings in languages besides English?
Information on any of the available Java compilers is welcome. In fact, historical or technical reasons why localisation is not considered for any language compilers is welcome.
NOTE: I am not asking this question to solve any problem I have, it is just sheer curiosity.
While I don't know anything about javac localization, I will answer to a part of the question:
GCC (the C and C++ compilers at least) are localized in Ubuntu, so localization certainly is done. However, the drawbacks of localization include that it is more difficult to google for the error messages online, or to describe a problem on StackOverflow. Programmers also absolutely must know English, so there is little benefit on localization.