java - NoClassDefFoundError for org/apache/poi/xssf/usermodel

I've searched along foruns and even though there's a lot of issues regarding this same error, none of them actually helped me with solving this error. I'm getting this error: org.apache.cxf.inter

java.lang.NoClassDefFoundError: Could not initialize class org.apache.poi.hssf.record.RecordFactory_could not initialize class org.apache.poi.hslf.rec-CSDN博客

java.lang.NoClassDefFoundError with Apache POI - SmartBear Community

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java - The package org.apache.poi.ss.usermodel is accessible from more than one module: poi, poi.ooxm - Stack Overflow

How to Read, Write XLSX File in Java - Apache POI Example

apache - Java Error NoClassDefFoundError - Stack Overflow

NoClassDefFoundError: org.openxmlformats.schemas.drawingml.x2006.main.ThemeDocument$Factory · Issue #5 · centic9/poi-on-android · GitHub

NoClassDefFoundError with Apache POI on Android - Stack Overflow

java - NoClassDefFoundError org/apache/poi/ss/usermodel/Workbook - Stack Overflow