added todos

diff --git a/src/main/java/org/apache/log4j/spi/NOPULogger.java b/src/main/java/org/apache/log4j/spi/NOPULogger.java
index 3dd1041..a3e7247 100644
--- a/src/main/java/org/apache/log4j/spi/NOPULogger.java
+++ b/src/main/java/org/apache/log4j/spi/NOPULogger.java

@@ -19,6 +19,7 @@
 import org.apache.log4j.ULogger;
 
 /**
+ * TODO: is this still needed?
  * A no operation (NOP) implementation of {@link ULogger}.
  *
  * @author Ceki G&uuml;lc&uuml;

diff --git a/src/main/java/org/apache/log4j/spi/SimpleULogger.java b/src/main/java/org/apache/log4j/spi/SimpleULogger.java
index c695921..86eeee2 100644
--- a/src/main/java/org/apache/log4j/spi/SimpleULogger.java
+++ b/src/main/java/org/apache/log4j/spi/SimpleULogger.java

@@ -22,6 +22,8 @@
 import org.apache.logging.log4j.Logger;
 
 /**
+ * TODO: is this still needed?
+ *
  * A simple implementation that logs messages of level INFO or higher on
  * the console (<code>System.out</code>).
  * <p>