[3/4] logging-log4j2 git commit: Add comments back

[mikes]

Add comments back


Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/commit/65706c0e
Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/65706c0e
Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/65706c0e

Branch: refs/heads/master
Commit: 65706c0e4b7d08c430e62d8cf5cc7dc4b4f77368
Parents: bb8f2ee
Author: Mikael Ståldal <mik...@staldal.nu>
Authored: Sat Jul 8 21:38:14 2017 +0200
Committer: Mikael Ståldal <mik...@staldal.nu>
Committed: Sat Jul 8 21:38:14 2017 +0200

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 .../org/apache/logging/log4j/ThreadContextUtilityClass.java | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/65706c0e/log4j-api/src/test/java/org/apache/logging/log4j/ThreadContextUtilityClass.java
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diff --git 
a/log4j-api/src/test/java/org/apache/logging/log4j/ThreadContextUtilityClass.java
 
b/log4j-api/src/test/java/org/apache/logging/log4j/ThreadContextUtilityClass.java
index 21a9951..a5603c5 100644
--- 
a/log4j-api/src/test/java/org/apache/logging/log4j/ThreadContextUtilityClass.java
+++ 
b/log4j-api/src/test/java/org/apache/logging/log4j/ThreadContextUtilityClass.java
@@ -53,15 +53,20 @@ public class ThreadContextUtilityClass {
         ThreadContext.clearMap();
         final Map<String, String> map1 = ThreadContext.getContext();
         assertTrue(map1.isEmpty());
-        map1.put("K", "val");
+        map1.put("K", "val"); // no error
         assertEquals("val", map1.get("K"));
+
+        // adding to copy does not affect thread context map
         assertTrue(ThreadContext.getContext().isEmpty());
+
         ThreadContext.put("key", "val2");
         final Map<String, String> map2 = ThreadContext.getContext();
         assertEquals(1, map2.size());
         assertEquals("val2", map2.get("key"));
-        map2.put("K", "val");
+        map2.put("K", "val"); // no error
         assertEquals("val", map2.get("K"));
+
+        // first copy is not affected
         assertNotSame(map1, map2);
         assertEquals(1, map1.size());
     }