Java™ Application Development on Linux - Dator

5.12 The Rest of the Toolkit165and accuracy of the JAR file; you can trust it as much as you trustthe signer.Generally speaking, an applet must be signed by a key that the usertrusts in order for the applet to increase its security access to the clientmachine (open/read/write files, access the printer, and so on). But we don’tcover applets in this book.keytoolThis tool is used to create and manage the keys we were talking about inthe previous entry. Again, this is used mainly for JAR signing, and JARsigning is used mainly for applet authentication, but we don’t cover appletsin this book.rmidThe RMI activation daemon. In the RMI example we showed you in thischapter, you had to start a server manually and leave it running to processrequests. RMI activation is a system where RMI servers may be started ondemand.serialverReports the RMI serialVersionUID of a class. This can be useful whentrying to track down problems with complex RMI systems, especially whenmultiple versions of an RMI interface with the same name must be in useat the same time.native2asciiAs mentioned before, Java uses Unicode for all strings. Most of the time,you and we are working with ASCII-encoded files. This program convertsfiles from one format to the other.policytoolRemember how we had to set up a security policy file for our RMIdemonstration (Example 5.13)? Well, this is a Java GUI application forcreating and editing Java policy files.There are a few more. One group of utilities is related to Kerberos tickets.Another is related to Java IDL and RMI-IIOP, both of which are to allow Javato interoperate with CORBA. If you are in a CORBA environment, you willwant to look at those. We’ve got enough on our plates without trying to jamCORBA in here. You’re on your own, buddy. Finally, there are a couple of