Change LoggerContet to use MDCAdapter instead of LogbackMDCAdapter , partial fix for LOGBACK-1756

Signed-off-by: Ceki Gulcu <[email protected]>

Author: ceki

logback-classic/src/main/java/ch/qos/logback/classic/LoggerContext.java

@@ -44,6 +44,7 @@
 import ch.qos.logback.core.status.StatusListener;
 import ch.qos.logback.core.status.StatusManager;
 import ch.qos.logback.core.status.WarnStatus;
+import org.slf4j.spi.MDCAdapter;
 
 /**
  * LoggerContext glues many of the logback-classic components together. In
@@ -71,7 +72,7 @@ public class LoggerContext extends ContextBase implements ILoggerFactory, LifeCy
     private boolean packagingDataEnabled = DEFAULT_PACKAGING_DATA;
     SequenceNumberGenerator sequenceNumberGenerator = null; // by default there is no SequenceNumberGenerator
 
-    LogbackMDCAdapter mdcAdapter;
+    MDCAdapter mdcAdapter;
 
 
     private int maxCallerDataDepth = ClassicConstants.DEFAULT_MAX_CALLEDER_DATA_DEPTH;
@@ -405,16 +406,16 @@ public SequenceNumberGenerator getSequenceNumberGenerator() {
         return sequenceNumberGenerator;
     }
 
-    public LogbackMDCAdapter getMDCAdapter() {
+    public MDCAdapter getMDCAdapter() {
         return mdcAdapter;
     }
 
-    public void setMDCAdapter(LogbackMDCAdapter anAdapter) {
+    public void setMDCAdapter(MDCAdapter anAdapter) {
         if(this.mdcAdapter ==  null) {
             this.mdcAdapter = anAdapter;
         } else {
             StatusManager sm = getStatusManager();
-            sm.add(new ErrorStatus("mdcAdapter already set", this, new Throwable()));
+            sm.add(new ErrorStatus("mdcAdapter cannot be set multiple times", this, new IllegalStateException("mdcAdapter already set")));
         }
     }
 }

logback-classic/src/main/java/ch/qos/logback/classic/spi/ILoggingEvent.java

@@ -137,7 +137,8 @@ default Marker getMarker() {
     /**
      * Return the {@link java.time.Instant Instant} the event was created.
      * 
-     * Default implementation returns null.
+     * Default implementation returns the instant corresponding to the value returned by @link
+     * {@link #getTimeStamp()}.
      * 
      * @return the  {@link java.time.Instant Instant}  the event was created.
      * @since 1.3

logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java

@@ -404,7 +404,7 @@ public String getFormattedMessage() {
     public Map<String, String> getMDCPropertyMap() {
         // populate mdcPropertyMap if null
         if (mdcPropertyMap == null) {
-            LogbackMDCAdapter mdcAdapter = loggerContext.getMDCAdapter();
+            MDCAdapter mdcAdapter = loggerContext.getMDCAdapter();
             if (mdcAdapter instanceof LogbackMDCAdapter)
                 mdcPropertyMap = ((LogbackMDCAdapter) mdcAdapter).getPropertyMap();
             else