public Map<String, String> getMDCPropertyMap() {
    if(this.mdcPropertyMap == null) {
        MDCAdapter mdc = MDC.getMDCAdapter();
        if(mdc instanceof LogbackMDCAdapter) {
            this.mdcPropertyMap = ((LogbackMDCAdapter)mdc).getPropertyMap();
        } else {
            this.mdcPropertyMap = mdc.getCopyOfContextMap();
        }
    }

    if(this.mdcPropertyMap == null) {
        this.mdcPropertyMap = CACHED_NULL_MAP;
    }

    return this.mdcPropertyMap;
}
 

/**
 * Currently this method always returns an instance of
 * {@link StaticMDCBinder}.
 * @return
 */
public MDCAdapter getMDCA() {
  try {
    return (MDCAdapter) Class.forName(getMDCAdapterClassStr()).newInstance();
  } catch (Exception e) { // NOSONAR we can't log here as we are actually instantiating log here
    System.err.println("Unable to instantiate mdc adapter " + getMDCAdapterClassStr()); // NOSONAR
    e.printStackTrace(); // NOSONAR
    return new NOPMDCAdapter();
  }
}
 

public static MDCAdapter getInstance() {
    return mtcMDCAdapter;
}
 

public MDCAdapter getMDCA() {
    return new BasicMDCAdapter();
}
 

public static MDCAdapter getInstance() {
    return mtcMDCAdapter;
}
 

private static MDCAdapter bwCompatibleGetMDCAdapterFromBinder() throws NoClassDefFoundError {
    return StaticMDCBinder.SINGLETON.getMDCA();
}
 

public static MDCAdapter getMDCAdapter() {
    return mdcAdapter;
}
 

public MDCAdapter getMDCA() {
    return new BasicMDCAdapter();
}
 

@Override
public MDCAdapter getMDCAdapter() {
    return mdcAdapter;
}
 

public MDCAdapter getMDCA() {
    return new ThreadLocalMDCAdapter();
}
 

Adapter(MDCAdapter delegate) {
    this.delegate = requireNonNull(delegate, "delegate");
}
 

@Override
public synchronized MDCAdapter getMDCAdapter() {
	return this.mdc;
}
 

public static MDCAdapter mdc() {
    return SINGLETON.getMDCA();
}
 

public MDCAdapter getMDCA() {
    return adapter;
}
 

public MDCAdapter getMDCA() {
   return new BasicMDCAdapter();
}
 

@Override
public MDCAdapter getMDCAdapter() {
    return mdcAdapter;
}
 

/**
 * Currently this method always returns an instance of
 * {@link StaticMDCBinder}.
 */
public MDCAdapter getMDCA() {
   return new NOPMDCAdapter();
}
 

/**
 * Currently this method always returns an instance of
 * {@link StaticMDCBinder}.
 */
public MDCAdapter getMDCA() {
    return new NOPMDCAdapter();
}
 

/**
 * Currently this method always returns an instance of {@link StaticMDCBinder}.
 * @return an MDC adapter
 */
public MDCAdapter getMDCA() {
    return new Log4jMDCAdapter();
}