making sure stuff is not null, before hashing
making sure stuff is not null, before hashing

JuergenWeichand/downloadclient,gdi-by/downloadclient,gdi-by/downloadclient,Intevation/downloadclient,Intevation/downloadclient,JuergenWeichand/downloadclient,gdi-by/downloadclient,Intevation/downloadclient,JuergenWeichand/downloadclient,gdi-by/downloadclient,Intevation/downloadclient,JuergenWeichand/downloadclient