iOS: "java.io.IOException: Couldn't get lock for" while create instance of FileHandler

Hi! I'm trying to add logging to file in iOS (in Android it works fine), but when I create an instance of FileHandler, get IOException telling that "Couldn't get lock for [my absolute path to log file]". What I'm doing wrong?
Problematic piece of code:
FileHandler handler = new FileHandler(getFilePath(name), MAX_LOG_FILE_SIZE,
MAX_LOG_FILE_COUNT, true);
P.S.: I checked the existence of all folders in the path - everything is fine.