The current security warning should be changed/improved and simplified to note that:

 - the algorithms that the JKS and JCEKS keystores are outdated
 - the JKS and JCEKS types will be removed in a future release

The proposed new warning is:

"JKS uses outdated cryptographic algorithms and will be removed in a future release. Migrate to PKCS12 using:
keytool -importkeystore -srckeystore <filename> -destkeystore <filename> -deststoretype pkcs12"

- Substitute JKS with JCEKS for JCEKS keystores
- Replace <filename> with the filename of the keystore