MDC class checks for NCDSupport at initialization (should check for MDCSupport)

Seems like a copy-and-past error:

MDCProvider m = null;
if (NDCSupport.class.isAssignableFrom(Logger.pluginClass)) <== HERE
{
try

{ m = ((MDCSupport) Logger.pluginClass.newInstance()).getMDCProvider(); }

catch (Throwable t)

{ // Eat }

}