The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.
See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.
See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.
Now you are ready to sign the JAR file. Type the following in your command window to sign the JAR file Count.jar, using the private key in the keystore entry aliased by signFiles, and to name the resulting signed JAR file sCount.jar:
jarsigner -keystore examplestore -signedjar sCount.jar Count.jar signFiles
You will be prompted for the store password and the private key password.
jarsigner tool extracts the certificate from the keystore entry whose alias is signFiles and attaches it to the generated signature of the signed JAR file.
Time stamping the signature is recommended, and a warning is shown if the signature is not time stamped. The time stamp is used to verify that the certificate used to sign the JAR file was valid at the time of signing. See
Signing JAR Files for information on the jarsigner options for including a time stamp with the signature.