### Eclipse Workspace Patch 1.0
#P log4j2
Index: api/src/main/java/org/apache/logging/log4j/spi/ThreadContextMap.java
===================================================================
--- api/src/main/java/org/apache/logging/log4j/spi/ThreadContextMap.java	(revision 1439358)
+++ api/src/main/java/org/apache/logging/log4j/spi/ThreadContextMap.java	(working copy)
@@ -67,6 +67,12 @@
      * @return a copy of the context.
      */
     Map<String, String> getContext();
+    
+    /**
+     * Get an immutable copy of the current thread's context Map.
+     * @return An immutable copy of the ThreadContext Map.
+     */
+    Map<String, String> getImmutableContext();
 
     /**
      * Return the actual context Map.