java error

hi...I was following this example Private jo As JavaObject Manager= GetContext.RunMethod("getSystemService", Array("usb")) mReader=jo.InitializeNewInstance ("com.acs.smartcard.Reader",Array As Object (Manager)) umanager.Initialize Dim usbdevices() As UsbDevice usbdevices =...

Could someone decipher this java log? My project works fine in debug mode, but when I put into release mode and package it up as an exe file with B4JPackager11 and click my 'Export data to Excel' button, it blows up. If this log isn't definitive enough, I'll build a simple project that...