I am trying to use it with vaadin 14 flow and get the following error.
Could you please create an example demo in vaadin flow 14 or 15?
Caused by: java.lang.NoClassDefFoundError: Failed to link org/apache/poi/xssf/usermodel/XSSFWorkbook (Module "deployment.bar-web-1.0.93-SNAPSHOT.war" from Service Module Loader): org/apache/poi/ss/usermodel/Date1904Support
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.lang.ClassLoader.defineClass(ClassLoader.java:839)
at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:424)
at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:555)
at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:339)
at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:126)
at org.jboss.modules.Module.loadModuleClass(Module.java:731)
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:247)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
at java.lang.Class.getMethod0(Class.java:3018)
at java.lang.Class.getMethod(Class.java:1784)
at org.apache.poi.ss.usermodel.WorkbookFactory.createWorkbook(WorkbookFactory.java:313)
at org.apache.poi.ss.usermodel.WorkbookFactory.createXSSFWorkbook(WorkbookFactory.java:296)
at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:284)
at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:253)
at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:234)
at be.kava.tarifering.vaadin.views.ExcelDisplayView.initSpreadsheetPanel(ExcelDisplayView.java:95)
at be.kava.tarifering.vaadin.views.ExcelDisplayView.<init>(ExcelDisplayView.java:55)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:119)
... 91 more