Jdbc deployment in applet

Question

When I use jdbc in applet to connect mysql on applet's host, Java always throws
an exception like this:
java.security.AccessControlException: access denied
(java.util.PropertyPermission file.encoding read)
What does it mean?
Why does it occur?

Answer 1

I have the exact same problem, I think.
Now, I've been looking all over the net all day, and I've found zilch, so I'd appreciate som input here.
MySQL and Apache on the same physical machine, with one NIC and one IP.
Firewalled i-net with one IP, DNAT:ed to the local SQL/Apache box on ports http(s)/mysql alike.
From a remote machine on the i-net,
"%> mysql --user=me --password=mysecret <firewall's IP>"
works like a charm
Running the applet gives me:
"Unable to connect to any hosts due to exception: java.security.AccessControlException: access denied (java.util.PropertyPermission file.encoding read)
I am stumped. As you see in the code below, it's all the same host being used, both machine-wise and IP-wise, I used to have a TCP permission problem, but fixed that with this solution.
Now, I am counting hardcore on not having to do anything client-side to facilitate this connection. No signing, no permissions, nothing. Using the same server for all of this, it shouldn't be a problem but it is, so any suggestions are appreciated. (Just please don't ask me to check that mysql daemon is running ;-)
Some vital statistics:
MySQL-server-4.0.13-0
j2sdk1.4.1_03
httpd-2.0.40-21.3
Code:
#### Cut from my applet ####
private void prepareJDBC() {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception ex) {
System.err.println("Fatal error when preparing JDBC\n"+ex);
} // try/catch
String codeHost = getDocumentBase().getHost(); //gets the host the applet's been dloaded from
if (codeHost.indexOf('/') != -1) {//removes the trailing '/'
codeHost = codeHost.substring(0, codeHost.indexOf('/'));
} // if
try{
System.out.println(codeHost.toString());
Connection mysqlConnection = DriverManager.getConnection("jdbc:mysql://"+codeHost+"/MyDBase?user=me&password=mypass");
} catch (SQLException ex) { System.out.println(ex); }
#### E ####