This removes the POILogger and POILogFactory mechanism for logging. This mechanism was created at a time when the Java landscape looked very different than it does today.
Log4j 2 is an Apache Foundation project that is well maintained and is widely regarded as having good performance and capabilities. We use only the Log4j API artifact. This lets application developers choose how they want to capture logging events if at all. Integrations with Log4j 2 Core and Logback are available from the Log4j project.
Closes #224
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1886770 13f79535-47bb-0310-9956-ffa450edef68
constant name to match the regular expression '^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$'
reorder "final static" -> "static final"
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1885613 13f79535-47bb-0310-9956-ffa450edef68
#63745 - Add traversing and debugging interface to HSSF
This makes toString() implementations obsolete.
This also contains preparation for #64036 to (maybe) change the record factory interface of HSSF.
Remove duplicated record SeriesToChartGroupRecord, which is a duplicate of SeriesChartGroupIndexRecord.
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1876433 13f79535-47bb-0310-9956-ffa450edef68