logback-android/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java
public void setMDCPropertyMap(Map<String, String> map) {
    if (mdcPropertyMap != null) {
      throw new IllegalStateException(
              "The MDCPropertyMap has been already set for this event.");
    }
    this.mdcPropertyMap = map;

  }
public void setMDCPropertyMap(Map<String, String> map) {
    if (mdcPropertyMap != null) {
      throw new IllegalStateException(
              "The MDCPropertyMap has been already set for this event.");
    }
    this.mdcPropertyMap = map;

  }
Set the MDC map for this event.

@param map map of MDC properties to values
@since 1.0.8