You will need to look into setting up log4j as you wish - zero logs or otherwise. This 'ERROR' is benign and can be ignored - maybe you can talk to log4j team about how to hide this message.
On Friday 5 November 2021, 14:51:08 GMT+1, Simon Davey <si...@simondavey.me.uk> wrote: Hi POI team, We are testing the POI5.1.0 release for producing Powerpoint slideshows and are seeing the following error being emitted when running org.apache.poi.examples.xslf.Tutorial1 : ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console... This goes away if we add log4j-core-2.14.1.jar to the classpath. Q: Is it expected that we have to add this extra jar file to run POI or should it be able to run quietly without? Note: we don’t want to use any debug logs from POI. Environment notes: Same behaviour seen on Windows and Linux OpenJDK version: zulu8.38.0.13-ca-fx-jdk8.0.212-win_x64 Steps to reproduce (suppose poi-bin-5.1.0-20211024.zip unpacked in C:\poi\5.1.0) : C:\>set CLASSPATH=C:\poi\5.1.0\*;C:\poi\5.1.0\lib\*;C:\poi\5.1.0\ooxml-lib\*;C:\poi\5.1.0\auxiliary\* C:\>java org.apache.poi.examples.xslf.Tutorial1 ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console... C:\> --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@poi.apache.org For additional commands, e-mail: user-h...@poi.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@poi.apache.org For additional commands, e-mail: user-h...@poi.apache.org
