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.
The steps a user, such as Kim, would take, are:
keytool -import -alias chris -file Chris.cer -keystore kim.keystore keytool -import -alias terry -file Terry.cer -keystore kim.keystore
Here's the complete
kim.policy
policy file, as described in A Sample Policy File.
To set the high score:
java -Djava.security.manager -Djava.security.policy=kim.policy -classpath hs.jar;terry.jar com.gamedev.games.ExampleGame set 456
To get the high score:
java -Djava.security.manager -Djava.security.policy=kim.policy -classpath hs.jar;terry.jar com.gamedev.games.ExampleGame get
Notes:
-Djava.security.manager
, the application will run unrestricted (policy files and permissions won't be checked).-Djava.security.policy=kim.policy
tells where the policy file is. Note: There are other ways of specifying the policy file. For example, you can add an entry in the security properties file that specifies the inclusion of kim.policy
, as discussed at the end of the
See the Policy File Effects lesson.-classpath hs.jar;terry.jar
specifies the JAR files that contain the class files needed. For Windows, use a semicolon (";") to separate JAR files; for UNIX, use a colon (":").kim.policy
specifies the keystore kim.keystore
. Since it does not provide an absolute URL location for the keystore, the keystore is assumed to be in the same directory as the policy file.