===========================Error message============== Exception in thread "main" java.lang.NoClassDefFoundError: org/dom4j/DocumentException at org.apache.poi.openxml4j.opc.OPCPackage.init(OPCPackage.java:149) at org.apache.poi.openxml4j.opc.OPCPackage.<init>(OPCPackage.java:136) at org.apache.poi.openxml4j.opc.Package.<init>(Package.java:54) at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:98) at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:199) at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:178) at org.apache.poi.util.PackageHelper.open(PackageHelper.java:53) at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:176) at Xls_Reader.<init>(Xls_Reader.java:33) at file_reader.main(file_reader.java:7) Caused by: java.lang.ClassNotFoundException: org.dom4j.DocumentException at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 10 more ==================Solution please===============
M
Replied on 18/09/2015
chk 2 things
first the path of Data.xlsx file
second see f all the jar files are added in your library.