ImportExport plugin - import don't work!

OpenFire v.4.1.4 + importexport plugin v.2.6

Debian 8.8 + MySQL v.5.5.55 + java v.1.8.0 / java v.1.7.0

Export work fine, import don’t work (same file from export with changed only “username”)

I need help from anybody!

2017.06.20 14:00:53 org.jivesoftware.openfire.container.PluginServlet -
java.util.NoSuchElementException
at java.util.ArrayList$Itr.next(ArrayList.java:834)
at org.jivesoftware.openfire.plugin.userImportExport.import_002duser_002ddata_jsp. _jspService(import_002duser_002ddata_jsp.java:100)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.jivesoftware.openfire.container.PluginServlet.handleJSP(PluginServlet.java: 388)
at org.jivesoftware.openfire.container.PluginServlet.service(PluginServlet.java:10 3)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1669)

I reproduced the problem. I have created a bugreport for this in our issue tracker: [OF-1355] UserImportExport plugin fails on import - IgniteRealtime JIRA

I believe that this occurs when you don’t set the configuration options that are supposed to be optional. I’ve submitted a fix.