HADOOP-18088. Replace log4j 1.x with reload4j. (#4084)

Co-authored-by: Wei-Chiu Chuang <weichiu@apache.org>

NOTICE.txt

@@ -223,13 +223,13 @@ framework, which can be obtained at:
   * HOMEPAGE:
     * http://commons.apache.org/logging/
 
-This product optionally depends on 'Apache Log4J', a logging framework, which
+This product optionally depends on 'reload4j', a logging framework, which
 can be obtained at:
 
   * LICENSE:
-    * license/LICENSE.log4j.txt (Apache License 2.0)
+    * license/LICENSE.reload4j.txt (Apache License 2.0)
   * HOMEPAGE:
-    * http://logging.apache.org/log4j/
+    * https://reload4j.qos.ch/
 
 This product optionally depends on 'Aalto XML', an ultra-high performance
 non-blocking XML processor, which can be obtained at:
@@ -278,7 +278,7 @@ which has the following notices:
  * This product includes software from the Spring Framework,under the Apache License 2.0 (see: StringUtils.containsWhitespace())
 
 The binary distribution of this product bundles binaries of
-Apache Log4j 1.2.17,
+reload4j 1.2.18.3,
 which has the following notices:
  * ResolverUtil.java
     Copyright 2005-2006 Tim Fennell

hadoop-client-modules/hadoop-client-check-invariants/pom.xml

@@ -87,7 +87,7 @@
                     <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                     <exclude>commons-logging:commons-logging</exclude>
                     <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                    <exclude>log4j:log4j</exclude>
+                    <exclude>ch.qos.reload4j:reload4j</exclude>
                     <!-- Leave javax annotations we need exposed -->
                     <exclude>com.google.code.findbugs:jsr305</exclude>
                     <!-- Leave bouncycastle unshaded because it's signed with a special Oracle certificate so it can be a custom JCE security provider -->

hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml

@@ -91,7 +91,7 @@
                     <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                     <exclude>commons-logging:commons-logging</exclude>
                     <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                    <exclude>log4j:log4j</exclude>
+                    <exclude>ch.qos.reload4j:reload4j</exclude>
                     <!-- Leave JUnit unshaded so downstream can use our test helper classes -->
                     <exclude>junit:junit</exclude>
                     <!-- JUnit brings in hamcrest -->

hadoop-client-modules/hadoop-client-integration-tests/pom.xml

@@ -33,8 +33,8 @@
 
   <dependencies>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -42,11 +42,6 @@
       <artifactId>slf4j-api</artifactId>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>

hadoop-client-modules/hadoop-client-minicluster/pom.xml

@@ -187,8 +187,12 @@
           <artifactId>slf4j-log4j12</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
+          <groupId>org.slf4j</groupId>
-          <artifactId>log4j</artifactId>
+          <artifactId>slf4j-reload4j</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>com.fasterxml.jackson.core</groupId>
@@ -669,7 +673,7 @@
                       <exclude>commons-logging:commons-logging</exclude>
                       <exclude>junit:junit</exclude>
                       <exclude>com.google.code.findbugs:jsr305</exclude>
-                      <exclude>log4j:log4j</exclude>
+                      <exclude>ch.qos.reload4j:reload4j</exclude>
                       <!-- We need a filter that matches just those things that are included in the above artiacts -->
                       <!-- Leave bouncycastle unshaded because it's signed with a special Oracle certificate so it can be a custom JCE security provider -->
                       <exclude>org.bouncycastle:*</exclude>

hadoop-client-modules/hadoop-client-runtime/pom.xml

@@ -103,8 +103,8 @@
          * one of the three custom log4j appenders we have
       -->
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
       <optional>true</optional>
     </dependency>
@@ -153,7 +153,7 @@
                       <!-- Leave commons-logging unshaded so downstream users can configure logging. -->
                       <exclude>commons-logging:commons-logging</exclude>
                       <!-- Leave log4j unshaded so downstream users can configure logging. -->
-                      <exclude>log4j:log4j</exclude>
+                      <exclude>ch.qos.reload4j:reload4j</exclude>
                       <!-- Leave javax APIs that are stable -->
                       <!-- the jdk ships part of the javax.annotation namespace, so if we want to relocate this we'll have to care it out by class :( -->
                       <exclude>com.google.code.findbugs:jsr305</exclude>

hadoop-client-modules/hadoop-client/pom.xml

@@ -206,8 +206,8 @@
           <artifactId>commons-cli</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
+          <groupId>ch.qos.reload4j</groupId>
-          <artifactId>log4j</artifactId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>com.sun.jersey</groupId>
@@ -282,11 +282,6 @@
           <groupId>io.netty</groupId>
           <artifactId>netty</artifactId>
         </exclusion>
-        <!-- No slf4j backends for downstream clients -->
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-log4j12</artifactId>
-        </exclusion>
       </exclusions>
     </dependency>
 
@@ -315,11 +310,6 @@
           <groupId>io.netty</groupId>
           <artifactId>netty</artifactId>
         </exclusion>
-        <!-- No slf4j backends for downstream clients -->
-        <exclusion>
-          <groupId>org.slf4j</groupId>
-          <artifactId>slf4j-log4j12</artifactId>
-        </exclusion>
       </exclusions>
     </dependency>
 

hadoop-common-project/hadoop-auth-examples/pom.xml

@@ -47,13 +47,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
   </dependencies>

hadoop-common-project/hadoop-auth/pom.xml

@@ -82,13 +82,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
@@ -176,6 +176,12 @@
       <artifactId>apacheds-server-integ</artifactId>
       <version>${apacheds.version}</version>
       <scope>test</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>log4j</groupId>
+          <artifactId>log4j</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>org.apache.directory.server</groupId>

hadoop-common-project/hadoop-common/pom.xml

@@ -151,8 +151,8 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -192,7 +192,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java

@@ -85,7 +85,7 @@ public class GenericsUtil {
     }
     Logger log = LoggerFactory.getLogger(clazz);
     try {
-      Class log4jClass = Class.forName("org.slf4j.impl.Log4jLoggerAdapter");
+      Class log4jClass = Class.forName("org.slf4j.impl.Reload4jLoggerAdapter");
       return log4jClass.isInstance(log);
     } catch (ClassNotFoundException e) {
       return false;

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java

@@ -35,6 +35,6 @@ public class TestClassUtil {
     Assert.assertTrue("Containing jar does not exist on file system ",
         jarFile.exists());
     Assert.assertTrue("Incorrect jar file " + containingJar,
-        jarFile.getName().matches("log4j.*[.]jar"));
+        jarFile.getName().matches("reload4j.*[.]jar"));
   }
 }

hadoop-common-project/hadoop-kms/pom.xml

@@ -134,8 +134,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -145,7 +145,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>

hadoop-common-project/hadoop-minikdc/pom.xml

@@ -40,7 +40,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>

hadoop-common-project/hadoop-nfs/pom.xml

@@ -79,13 +79,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <dependency>

hadoop-hdfs-project/hadoop-hdfs-client/pom.xml

@@ -48,8 +48,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
           <artifactId>commons-logging</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
+          <groupId>ch.qos.reload4j</groupId>
-          <artifactId>log4j</artifactId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
       </exclusions>
     </dependency>

hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml

@@ -179,8 +179,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -190,7 +190,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
     <!-- 'mvn dependency:analyze' fails to detect use of this dependency -->

hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml

@@ -134,8 +134,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -160,7 +160,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>

hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml

@@ -44,8 +44,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
           <artifactId>commons-logging</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
+          <groupId>ch.qos.reload4j</groupId>
-          <artifactId>log4j</artifactId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
       </exclusions>
     </dependency>
@@ -61,7 +61,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>

hadoop-hdfs-project/hadoop-hdfs/pom.xml

@@ -124,8 +124,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -155,7 +155,7 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>provided</scope>
     </dependency>
     <dependency>

hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml

@@ -82,7 +82,7 @@
     </dependency>
     <dependency>
      <groupId>org.slf4j</groupId>
-       <artifactId>slf4j-log4j12</artifactId>
+       <artifactId>slf4j-reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>

hadoop-mapreduce-project/pom.xml

@@ -88,7 +88,7 @@
     </dependency>
     <dependency>
      <groupId>org.slf4j</groupId>
-       <artifactId>slf4j-log4j12</artifactId>
+       <artifactId>slf4j-reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>

hadoop-project/pom.xml

@@ -79,8 +79,8 @@
     <httpcore.version>4.4.13</httpcore.version>
 
     <!-- SLF4J/LOG4J version -->
-    <slf4j.version>1.7.25</slf4j.version>
+    <slf4j.version>1.7.35</slf4j.version>
-    <log4j.version>1.2.17</log4j.version>
+    <reload4j.version>1.2.18.3</reload4j.version>
 
     <!-- com.google.re2j version -->
     <re2j.version>1.1</re2j.version>
@@ -263,12 +263,28 @@
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-common</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-common</artifactId>
         <version>${hadoop.version}</version>
         <type>test-jar</type>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hadoop</groupId>
@@ -339,12 +355,24 @@
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-mapreduce-client-core</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
 
       <dependency>
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-mapreduce-client-jobclient</artifactId>
         <version>${hadoop.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
 
       <dependency>
@@ -910,9 +938,9 @@
         <version>${commons-logging-api.version}</version>
       </dependency>
       <dependency>
-        <groupId>log4j</groupId>
+        <groupId>ch.qos.reload4j</groupId>
-        <artifactId>log4j</artifactId>
+        <artifactId>reload4j</artifactId>
-        <version>${log4j.version}</version>
+        <version>${reload4j.version}</version>
         <exclusions>
           <exclusion>
             <groupId>com.sun.jdmk</groupId>
@@ -1015,7 +1043,7 @@
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-log4j12</artifactId>
+        <artifactId>slf4j-reload4j</artifactId>
         <version>${slf4j.version}</version>
       </dependency>
       <dependency>
@@ -1194,6 +1222,18 @@
             <groupId>jline</groupId>
             <artifactId>jline</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1210,6 +1250,14 @@
             <groupId>jline</groupId>
             <artifactId>jline</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1320,6 +1368,16 @@
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
        <version>${curator.version}</version>
+       <exclusions>
+         <exclusion>
+           <groupId>org.slf4j</groupId>
+           <artifactId>slf4j-api</artifactId>
+         </exclusion>
+         <exclusion>
+           <groupId>log4j</groupId>
+           <artifactId>log4j</artifactId>
+         </exclusion>
+       </exclusions>
      </dependency>
      <dependency>
        <groupId>org.apache.curator</groupId>
@@ -1395,6 +1453,10 @@
             <artifactId>jdk.tools</artifactId>
             <groupId>jdk.tools</groupId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1403,6 +1465,16 @@
         <version>${hbase.version}</version>
         <scope>test</scope>
         <classifier>tests</classifier>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1420,6 +1492,16 @@
         <groupId>org.apache.hbase</groupId>
         <artifactId>hbase-server</artifactId>
         <version>${hbase.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1427,6 +1509,16 @@
         <version>${hbase.version}</version>
         <scope>test</scope>
         <classifier>tests</classifier>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1451,6 +1543,14 @@
             <artifactId>jdk.tools</artifactId>
             <groupId>jdk.tools</groupId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
         </exclusions>
         </dependency>
         <dependency>
@@ -1826,6 +1926,9 @@
                     <exclude>com.sun.jersey.jersey-test-framework:*</exclude>
                     <exclude>com.google.inject:guice</exclude>
                     <exclude>org.ow2.asm:asm</exclude>
+
+                    <exclude>org.slf4j:slf4j-log4j12</exclude>
+                    <exclude>log4j:log4j</exclude>
                   </excludes>
                   <includes>
                     <!-- for JDK 8 support -->

hadoop-tools/hadoop-azure/pom.xml

@@ -245,8 +245,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>test</scope>
     </dependency>
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml

@@ -46,8 +46,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml

@@ -107,8 +107,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-submarine/pom.xml

@@ -46,8 +46,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml

@@ -51,8 +51,8 @@
       <artifactId>commons-cli</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
     </dependency>
 
     <!-- 'mvn dependency:analyze' fails to detect use of this dependency -->

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml

@@ -167,8 +167,8 @@
       <artifactId>jersey-guice</artifactId>
     </dependency>
     <dependency>
-     <groupId>log4j</groupId>
+     <groupId>ch.qos.reload4j</groupId>
-     <artifactId>log4j</artifactId>
+     <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml

@@ -163,8 +163,8 @@
       <artifactId>commons-logging</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
+      <groupId>ch.qos.reload4j</groupId>
-      <artifactId>log4j</artifactId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>