The following code in the "Controls" section does not compile
```
// Perform update
Context ctx = ectx.createSubsubcontext("cn=newobj");

// Get response controls
Control[] respCtls = ectx.getResponseControls();
if (respCtls != null) {
    // Find the one we want
    for (int i = 0; i < respCtls; i++) {
        if(respCtls[i] instanceof ChangeIDControl) {
            ChangeIDControl cctl = (ChangeIDControl)respCtls[i];
            System.out.println(cctl.getChangeID());
        }
    }
}```

It will give an error message similar to "Operator '<' cannot be applied to 'int', 'javax.naming.ldap.Control[]'".
This (^) isn't a direct copy from the javac error but rather an assumption based on my understanding.

We should change `for (int i = 0; i < respCtls; i++) {` to `for (int i = 0; i < respCtls.length; i++) {`