Adding support for "OneCellAnchor"

Hello, We're using OneCellAnchor's to insert images into Excel spreadsheets. I've been able to achieve this using the reflection API to make POI's internals accessible and writing my own implementation of `XSSFDrawing.createPicture` but it's not pretty. I would like to contribute a pull request

JDK 20 Rampdown Phase 2 & JMX Heads-up

Hi, First off, on behalf of Oracle’s Java Team, I’d like to wish you a happy and prosperous new year! In 2023, two Java releases will be made available: JDK 20 (March) &  JDK 21 (September). JDK 20 [1] has entered Rampdown Phase Two (RDP2) [2], its initial Release Candidate is planned for

[Bug 48344] setRowStyle() method of HSSFRow is not working

https://bz.apache.org/bugzilla/show_bug.cgi?id=48344 --- Comment #20 from PJ Fanning --- I did a small code reorder that fixes the npe but still some xssf testing fails - r1906981 -- You are receiving this mail because: You are the assignee for the bug. -

[Bug 48344] setRowStyle() method of HSSFRow is not working

https://bz.apache.org/bugzilla/show_bug.cgi?id=48344 --- Comment #19 from PJ Fanning --- this patch causes a NPE in XSSFSheet and this breaks a lot of tests the SheetDataWriter change needs to be done in a separate patch - the change is big enough and that SheetDataWriter change is unrelated --

[Bug 66433] [PATCH] Improve boolean functions empty cell handling

https://bz.apache.org/bugzilla/show_bug.cgi?id=66433 PJ Fanning changed: What|Removed |Added Resolution|--- |FIXED Status|NEW