diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 2a77b38fb2..e081706483 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -425,6 +425,9 @@ Release 0.23.1 - Unreleased
     MAPREDUCE-3557. MR1 test fail to compile because of missing hadoop-archives dependency. 
     (tucu)
 
+    MAPREDUCE-3624. Remove unnecessary dependency on JDK's tools.jar. (mahadev
+    via acmurthy)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-mapreduce-project/hadoop-yarn/bin/yarn b/hadoop-mapreduce-project/hadoop-yarn/bin/yarn
index 4d19181b81..3cf3c798b0 100644
--- a/hadoop-mapreduce-project/hadoop-yarn/bin/yarn
+++ b/hadoop-mapreduce-project/hadoop-yarn/bin/yarn
@@ -110,7 +110,6 @@ if [ ! -d "$HADOOP_CONF_DIR" ]; then
 fi
 
 CLASSPATH="${HADOOP_CONF_DIR}:${YARN_CONF_DIR}:${CLASSPATH}"
-CLASSPATH=${CLASSPATH}:$JAVA_HOME/lib/tools.jar
 
 # for developers, add Hadoop classes to CLASSPATH
 if [ -d "$YARN_HOME/yarn-api/target/classes" ]; then