I'm using 20.04, in there the Apache POI is still the very old version 4.0.1.
Could you consider to upgrade the POI to newer version i.e. 5.0? Because it is having a signature problem with other packages as shown below.
PHP Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: CreateInstance failed:
new org.apache.poi.xssf.usermodel.XSSFWorkbook((o:InputStream)
[o:FileInputStream]). Cause: java.lang.SecurityException: class
"org.apache.poi.util.PackageHelper"'s signer information does not match signer information of other classes in the same package VM:
11.0.10@https://ubuntu.com/" at:\n#-19
java.base/java.lang.ClassLoader.checkCerts(ClassLoader.java:1151)\n#-18
java.base/java.lang.ClassLoader.preDefineClass(ClassLoader.java:906)\n#-17
java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1015)\n#-16 java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174
)\n#-15
org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2419)\n#-14
org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:865)\n#-13
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1334)\n#-12
org.apache.catalina.loader.WebappClassLoaderBase.loadClas in /var/www/erp/library/javabridge-7.2.1/java/Java.inc on line 223
