If you try to create a Java API document by javadoc.exe and your system language is not English, in Eclipse you may get a result Java API in a language other than English. The encoding problems may often cause that the navigation bar is full of grabled unrecognizable code like this.
In order to make the navigation bar in correct English language, just need make a small change. Go to the last page of the javadoc export wizard in Eclipse, add the following string into the “extra javadoc options” text area.
Click the finish button. You will see the output Java API Web pages will be in English. Another problem is solved. Bingo!