As Matt Ball said, you can provide the -locale option for javadoc to affect some things. The problem is that tools.jar contains only English by default and additionally one Japanese ( ja ) and one Chinese ( cn_ZH ) translation.
I just tried Chinese and it works: it writes ζεΊ: JSchException instead of Throws: JSchException .
Thus, you will have to translate them into your language (if you do not want one of them).
A few years ago I created an Esperanto translation of these resources for the current version (1.2 or such), if you are interested, I could dig them out. (But now it seems that they are using a different format.)
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