Sure, here you are: java.lang.NullPointerException: Attempt to invoke virtual method 'int org.jmrtd.io.FragmentBuffer.getLength()' on a null object reference at org.jmrtd.DefaultFileSystem$DefaultFileInfo.getFileLength(DefaultFileSystem.java:480) at net.sf.scuba.smartcards.CardFileInputStream.<init>(CardFileInputStream.java:65) at org.jmrtd.PassportService.getInputStream(PassportService.java:656)