Consider switching to own/other implementation of Apache Commons IO Tailer.

[artem-zinnatullin]

Tailer from Apache Commons IO has a bug https://issues.apache.org/jira/browse/IO-279 which causes file to be read again which breaks logic in Composer gojuno/composer#15 in certain cases.

[artem-zinnatullin]

I was thinking some more about it and realized that current implementation may lead to doubling test results in reports/logs and so on, so we definitely need to fix this issue cc @yunikkk

[yunikkk]

Maybe we could just switch the file reader to avoid extra work.