diff --git a/hadoop-mapreduce-project/CHANGES.MAPREDUCE-2841.txt b/hadoop-mapreduce-project/CHANGES.MAPREDUCE-2841.txt
index 539e7be..cfc9412 100644
--- a/hadoop-mapreduce-project/CHANGES.MAPREDUCE-2841.txt
+++ b/hadoop-mapreduce-project/CHANGES.MAPREDUCE-2841.txt
@@ -23,3 +23,4 @@
 MAPREDUCE-6067. native-task: fix some counter issues (Binglin Chang)
 MAPREDUCE-6069. native-task: Lint/style fixes and removal of unused code (todd)
 MAPREDUCE-6074. native-task: fix release audit, javadoc, javac warnings (todd)
+MAPREDUCE-6077. native-task: Remove CustomModule examples in nativetask (seanzhong)
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/README.txt b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/README.txt
deleted file mode 100644
index 0ad6f1e..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/README.txt
+++ /dev/null
@@ -1 +0,0 @@
-This project is depend on hadoop and hadoop-nativetask, so in order to complete the build, you have to specify the hadoop dir first.
\ No newline at end of file
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/pom.xml
deleted file mode 100644
index 5bf67c7..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/pom.xml
+++ /dev/null
@@ -1,131 +0,0 @@
-<?xml version="1.0"?>
-<!-- Licensed under the Apache License, Version 2.0 (the "License"); you 
-  may not use this file except in compliance with the License. You may obtain 
-  a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless 
-  required by applicable law or agreed to in writing, software distributed 
-  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES 
-  OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
-  the specific language governing permissions and limitations under the License. 
-  See accompanying LICENSE file. -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
-                      http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <groupId>org.apache.hadoop</groupId>
-  <artifactId>nativetask-sdk</artifactId>
-  <version>2.2.0</version>
-  <name>nativetask-sdk</name>
-
-  <properties>
-  </properties>
-
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.hadoop</groupId>
-      <artifactId>hadoop-mapreduce-client-nativetask</artifactId>
-      <version>2.2.0</version>
-    </dependency>
-  </dependencies>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-surefire-plugin</artifactId>
-        <configuration>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-
-  <profiles>
-    <profile>
-      <id>native</id>
-      <activation>
-        <activeByDefault>false</activeByDefault>
-      </activation>
-      <build>
-        <plugins>
-          <plugin>
-            <groupId>org.apache.maven.plugins</groupId>
-            <artifactId>maven-enforcer-plugin</artifactId>
-            <executions>
-              <execution>
-                <id>enforce-os</id>
-                <goals>
-                  <goal>enforce</goal>
-                </goals>
-                <configuration>
-                  <rules>
-                    <requireOS>
-                      <family>mac</family>
-                      <family>unix</family>
-                      <message>native build only supported on Mac or
-                        Unix</message>
-                    </requireOS>
-                  </rules>
-                  <fail>true</fail>
-                </configuration>
-              </execution>
-            </executions>
-          </plugin>
-          <plugin>
-            <groupId>org.apache.maven.plugins</groupId>
-            <artifactId>maven-antrun-plugin</artifactId>
-            <executions>
-              <execution>
-                <id>make</id>
-                <phase>compile</phase>
-                <goals>
-                  <goal>run</goal>
-                </goals>
-                <configuration>
-                  <target>
-                    <exec executable="sh" dir="${basedir}/src/main/native"
-                      failonerror="true">
-                      <arg value="${basedir}/src/main/native/build.sh" />
-                      <arg value="all" />
-                    </exec>
-                    <copy toDir="${project.build.directory}/native/target/usr/local/lib" overwrite="true">
-                      <fileset dir="${basedir}/src/main/native/.libs">
-                        <exclude name="**/*.o"/>
-                        <exclude name="nttest"/>
-                      </fileset>
-                    </copy>
-                    <copy todir="${project.build.directory}/${project.artifactId}-${project.version}/lib/native/sdk/" overwrite="true">
-                    	<fileset dir="${basedir}/src/main/native/.libs">
-                    	  <exclude name="**/*.o"/>
-                    	  <exclude name="nttest"/>
-                    	</fileset>
-                    	<fileset file="${basedir}/src/main/native/src/NativeTask.h" />
-                    </copy>
-     			  </target>
-                </configuration>
-              </execution>
-              <execution>
-                <id>make-clean</id>
-                <phase>clean</phase>
-                <goals>
-                  <goal>run</goal>
-                </goals>
-                <configuration>
-                  <target>
-                    <exec executable="sh" dir="${basedir}/src/main/native"
-                      failonerror="true">
-                      <arg value="${basedir}/src/main/native/build.sh" />
-                      <arg value="clean" />
-                    </exec>
-                  </target>
-                </configuration>
-              </execution>
-            </executions>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
-  </profiles>
-</project>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/platform/custom/CustomPlatform.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/platform/custom/CustomPlatform.java
deleted file mode 100644
index 1d67f43..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/platform/custom/CustomPlatform.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.hadoop.nativetask.platform.custom;
-
-import java.io.IOException;
-
-import org.apache.hadoop.mapred.nativetask.Platform;
-import org.apache.hadoop.nativetask.serde.custom.CustomWritable;
-import org.apache.hadoop.nativetask.serde.custom.CustomWritableSerializer;
-
-public class CustomPlatform extends Platform{
-
-  @Override
-  public void init() throws IOException {
-    registerKey(CustomWritable.class.getName(), 
-        CustomWritableSerializer.class);
-  }
-
-  @Override
-  public String name() {
-    return "CustomPlatform";
-  }
-
-}
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritable.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritable.java
deleted file mode 100644
index 28162f9..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritable.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.hadoop.nativetask.serde.custom;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-
-import org.apache.hadoop.io.WritableComparable;
-
-public class CustomWritable implements WritableComparable<CustomWritable>{
-  
-  private int Id_a;
-  private long Id_b;
-
-  public CustomWritable() {
-    this.Id_a = 0;
-    this.Id_b = 0;
-  }
-  
-  public CustomWritable(int a, long b){
-    this.Id_a = a;
-    this.Id_b = b;
-  }
-  
-  @Override
-  public void readFields(DataInput in) throws IOException {
-    Id_a = in.readInt();
-    Id_b = in.readLong();
-  }
-
-  @Override
-  public void write(DataOutput out) throws IOException {
-    out.writeInt(Id_a);
-    out.writeLong(Id_b);
-  }
-
-  @Override
-  public int compareTo(CustomWritable that) {
-    if(Id_a > that.Id_a){
-      return 1;
-    }
-    if(Id_a < that.Id_a){
-      return -1;
-    }
-    if(Id_b > that.Id_b){
-      return 1;
-    }
-    if(Id_b < that.Id_b){
-      return -1;
-    }
-    return 0;
-  }
-  
-  @Override
-  public String toString() {
-    return Id_a + "\t" + Id_b;
-  }
-
-}
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritableSerializer.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritableSerializer.java
deleted file mode 100644
index 4424a2e..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/java/org/apache/hadoop/nativetask/serde/custom/CustomWritableSerializer.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.hadoop.nativetask.serde.custom;
-
-import java.io.IOException;
-
-import org.apache.hadoop.io.Writable;
-import org.apache.hadoop.mapred.nativetask.INativeComparable;
-import org.apache.hadoop.mapred.nativetask.serde.DefaultSerializer;
-
-public class CustomWritableSerializer extends DefaultSerializer implements
-  INativeComparable{
-
-  @Override
-  public int getLength(Writable w) throws IOException {
-    return 12;
-  }
-}
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/native/src/CustomComparator.cpp b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/native/src/CustomComparator.cpp
deleted file mode 100644
index c8aa21d..0000000
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/sdk/example/CustomModule/src/main/native/src/CustomComparator.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <iostream>
-#include "NativeTask.h"
-
-using namespace NativeTask;
-
-namespace Custom {
-using namespace std;
-
-inline uint32_t bswap(uint32_t val) {
-  __asm__("bswap %0" : "=r" (val) : "0" (val));
-  return val;
-}
-
-int32_t ReadInt(const char * src) {
-  return (int32_t) bswap(*(uint32_t*) src);
-}
-
-inline uint64_t bswap64(uint64_t val) {
-#ifdef __X64
-  __asm__("bswapq %0" : "=r" (val) : "0" (val));
-#else
-
-  uint64_t lower = val & 0xffffffffU;
-  uint32_t higher = (val >> 32) & 0xffffffffU;
-
-  lower = bswap(lower);
-  higher = bswap(higher);
-
-  return (lower << 32) + higher;
-
-#endif
-  return val;
-}
-
-int64_t ReadLong(const char * src) {
-  return (int64_t) bswap64(*(uint64_t*) src);
-}
-
-int CustomComparator(const char * src, uint32_t srcLength, const char * dest,
-    uint32_t destLength) {
-  int32_t src_IDa = ReadInt(src);
-  int64_t src_IDb = ReadLong(src+4);
-  int32_t dest_IDa = ReadInt(dest);
-  int64_t dest_IDb = ReadLong(dest+4);
-  if(src_IDa > dest_IDa){
-    return 1;
-  }
-  if(src_IDa < dest_IDa){
-    return -1;
-  }
-  if(src_IDb > dest_IDb){
-    return 1;
-  }
-  if(src_IDb < dest_IDb){
-    return -1;
-  }
-  return 0;
-};
-
-DEFINE_NATIVE_LIBRARY(Custom) {
-  REGISTER_FUNCTION(CustomComparator,Custom);
-}
-
-}
-
-
-
-
-
-