CompositeRollingAppender Not Rolling Logs

I am using the following code to use the CompositeRollingAppender
class to roll a Log4j log file every day or when the log file is 1KB
(in this example), whichever comes first. However, when I run this
class several times, it keeps writing to the same log file without
rolling to the next one, even when the size exceeds 1KB.

Also, if I change the counter in the for loop, it starts to act odd.
If I make it iterate 10 times, I get a log file. If I make it iterate
15 times, I get a log file with a .3 extension. If I make it iterate
20 times, I get a log file with a .8 extension. I'm sure this all
comes back to something wrong in my configuration settings, but I
don't know what it is.

Any thoughts are greatly appreciated.

Code Follows:
----------------------------------

import org.apache.log4j.*;

public class TestClass{

    public static void main(String args[]) {
        TestClass l = new TestClass();
        l.invoke();
    }

    public void invoke() {
        CompositeRollingAppender cra = new CompositeRollingAppender();
        cra.setRollingStyle(3);
        cra.setStaticLogFileName(true);
        cra.setFile("C:\\TestLogFile3.txt");
        cra.setCountDirection(-1);
        cra.setMaxFileSize("1KB");
        cra.setMaxSizeRollBackups(10);
        cra.setDatePattern("'.'yyyy-MM-dd");
        PatternLayout pl = new PatternLayout();
        pl.setConversionPattern("%m%n");
        cra.setLayout(pl);
        cra.activateOptions() ;
        Logger myLogger = Logger.getLogger("");
        myLogger.addAppender(cra);

        for (int i = 0 ; i < 10 ; i++) {
            System.out.println("Writing");

myLogger.debug("132456789013245678901324567890132456789013245678901324567890132456789013245678901324567890");
        }
        LogManager.shutdown();
    }
}