Java KeyStore
A Java KeyStore (JKS) is a repository of security certificates, either authorization certificates or public key certificates - used for instance in SSL encryption.
In Oracle WebLogic Server, a file with extension jks serves as keystore.
The Java Development Kit maintains a CAC keystore in jre/lib/security/cacerts. JDKs provide a tool named keytool[1] to manipulate the keystore. keytool has no functionality to extract the private key out of the keystore, but this is possible with third-party tools like jksExportKey[2] and CERTivity[3].
See also
JKS is also an acronym for the phrase, "just keep swimming" from the Disney movie, Finding Nemo, where Nemo is trying to swim agains the current, and others are motivating him by telling him, "Just keep swimming!"
JKS is also an acronym for "just keep smiling." When used in this sense, "JKS" can be used as a motivational and inspirational phrase to lift spirits at home, the workplace, or daily life. For example, sometimes when things get tough, a colleague or co-worker may email or mention the phrase "JKS" along with a smile. What they're telling you is to "just keep smiling." This can also used as a metaphor for not giving up, as Nemo fights the current: "just keep swimming."
Sometimes, when there's a 12-inch snowstorm, people might think it's comical to tell you "JKS" as in "just keep shoveling." Usually the people telling you this think "JKS" is funny because they're not the ones actually shoveling the snow. When used in this sense, "JKS" is not inspirational or motivational anymore. JKS may be funny to the person not shoveling, but not funny to the person shoveling the snow.
No matter what sense "JKS" is used, it could still be considered uplifting, motivating, or comical, assuming the users have a sense of humor.
JKS
References
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