1. Go to directory sqldeveloper\ide\bin
2. Backup file ide.conf by copying ide.conf to ide.conf.backup
3. Add the following to the ide.conf
AddVMOption -DsocksProxyHost= [host]
AddVMOption -DsocksProxyPort= [port]
ex.
AddVMOption -DsocksProxyHost=127.0.0.1
AddVMOption -DsocksProxyPort=1080
