The `-XshowSettings:all` and `-XshowSettings` launch options now differ in behavior. `-XshowSettings` will print a summary view for the `locale` and `security` categories and all information for the other categories. `-XshowSettings:all` will continue to print all settings information available.

The `-XshowSettings` launcher option will now reject bad values passed to it. In such cases, an error message is printed and the JVM launch is aborted. See `java -X` for valid options that can be used with the `-XshowSettings` option.