在knopflerfish，沒辦法輸入...

[rnvul3ejo3]

package test_plug_in;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Activator implements BundleActivator
{
public void start(BundleContext context) throws Exception
{
try
{
System.out.println("input :");
BufferedReader buf=new BufferedReader(new InputStreamReader(System.in));
String hours=buf.readLine();
System.out.println(hours);
}
catch (Exception ex)
{
//...
}
}
public void stop(BundleContext context) throws Exception
{

}
}

用這程式來做測試。
想要在knopflerfish作輸入，沒想到卻不行，請大家幫忙個新手巴。