[Desktop Entry]
Exec=cd /opt/sqldeveloper/sqldeveloper/bin && bash sqldeveloper $*
Terminal=false
StartupNotify=true
Categories=GNOME;Oracle;Utility;Development;
Type=Application
Icon=/opt/sqldeveloper/icon.png
Name=Oracle SQL Developer
Comment=what to say
Version=s.0.m.t.h.i.n.g
GenericName=ORACLE SQL DEVELOPER

sudo update-desktop-database.