Suppose i have simple source:

import org.jboss.netty.handler.codec.frame.FrameDecoder

class XYZMessageDecoder extends FrameDecoder {

}

FrameDecoder is a Java class having "decode" method with signature:
protected abstract Object decode(
ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer) throws Exception;

Now if, i select from Eclipse context menu "Source -> Override/Implement Method ..." i get Java code
@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel,
ChannelBuffer buffer) throws Exception {
// TODO Auto-generated method stub
return null;
}

but should be

def decode(ctx: ChannelHandlerContext, channel: Channel, buffer: ChannelBuffer): Object = {
null
}

Can someone fix that? Thanks