After some trying it was easy to get openfire running with our official GoDaddy Wildcard SSL Certificate :)
Convert your key and cert to DER format (thanks to AgentBob):
openssl pkcs8 -topk8 -nocrypt -in lovelysystems.com.key -inform PEM -out lovelysystems.key.der -outform DER
openssl x509 -in _.lovelysystems.com.crt -inform PEM -out _.lovelysystems.com.crt.der -outform DER
Get some java utilities to create a java key store (yes java still rosucks, thanks to AgentBob again)
Create a new keystore (/root/keystore.ImportKey):
change the keytool passwords back to the defaults (from ‘importkey’ to ‘changeit’)
Add the GoDaddy Intermediate Certificate:
Move it to openfire (probably back up the old first) and restart openfire
In case of errors: