[logback-user] Why would logback ever READ the log file it is writing to?

[Steve Cohen]

In our java application that uses logback, and running under Windows 7, 
the sysinternals process monitor (www.sysinternals.com) shows that the 
java process is READING the application's log file.  Why would this be? 
  I had thought that an appender would only append to the end of the log 
file and am surprised to see this, especially after I insisted it 
couldn't be true.

Can someone explain why logback would need to READ a logfile?  I can 
categorically say that none of the application's code reads the file.

Steve Cohen