We switched on Maven timestamps in our log, since it's a handy way to check build times.

In Maven, this is done by editing conf/logging/simplelogger.properties and setting org.slf4j.simpleLogger.showDateTime=true

This results in compiler warnings like this:

08:52:34.395 [WARNING] /my/path/to/workspace/src/main/java/my/package/TemporalJsonSeqFiling.java:[86,76] redundant cast to long

( given that the date/time format is org.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss.SSS )

Taking a look at the source code, it seems that JAVAC_WARNING_PATTERN does a full match of the line, which does not accept that something could exist before [WARNING] .

We use other parsers for Checkstyle, PMD etc. and they work fine.