Open
Description
If multiple threads are configured in a step using a FlatFileItemReader, the lineNumber issued to the linemapper is compromised.
As a simple possible solution, the readline-Method must be synchronized. The lineMapper itself does not need sync.
BTW: In doc of the ItemReader the statement
" Implementations need not be thread-safe and clients of a {@link ItemReader}
need to be aware that this is the case.
"
is deeply misleading.