Java 2 security policy file example 2

/* Grants permission to run Derby and access all      */
/* databases under the Derby system home              */
/* when it defaults to the current directory               */


grant codeBase "file://f:/derby/lib/derby.jar" {
  permission java.lang.RuntimePermission "createClassLoader";
  permission java.util.PropertyPermission "derby.*", "read";
  permission java.util.PropertyPermission "user.dir", "read";
  permission java.io.FilePermission "${derby.system.home}","read";
  permission java.io.FilePermission "${user.dir}${/}-",
      "read,write,delete";
  permission java.util.PropertyPermission "derby.storage.jvmInstanceId", 
      "write"; 

};
Related reference
Java 2 security policy file example 1
Java 2 security policy file example 3