From 160b6d106d501ee5c8ab1d2a0b3c1975c9a53839 Mon Sep 17 00:00:00 2001
From: Masatake Iwasaki <iwasakims@apache.org>
Date: Thu, 7 Apr 2022 08:33:13 +0900
Subject: [PATCH] HADOOP-18088. Replace log4j 1.x with reload4j. (#4052)

Co-authored-by: Wei-Chiu Chuang <weichiu@apache.org>
---
 LICENSE-binary                                |   9 +-
 .../assemblies/hadoop-dynamometer.xml         |   2 +-
 .../assemblies/hadoop-hdfs-nfs-dist.xml       |   2 +-
 .../assemblies/hadoop-httpfs-dist.xml         |   2 +-
 .../resources/assemblies/hadoop-kms-dist.xml  |   2 +-
 .../assemblies/hadoop-mapreduce-dist.xml      |   2 +-
 .../resources/assemblies/hadoop-nfs-dist.xml  |   2 +-
 .../resources/assemblies/hadoop-tools.xml     |   2 +-
 .../resources/assemblies/hadoop-yarn-dist.xml |   2 +-
 .../hadoop-client-check-invariants/pom.xml    |   4 +-
 .../pom.xml                                   |   4 +-
 .../hadoop-client-integration-tests/pom.xml   |   9 +-
 .../hadoop-client-minicluster/pom.xml         |  10 +-
 .../hadoop-client-runtime/pom.xml             |   8 +-
 hadoop-client-modules/hadoop-client/pom.xml   |  14 +--
 .../hadoop-auth-examples/pom.xml              |   6 +-
 hadoop-common-project/hadoop-auth/pom.xml     |  12 +-
 hadoop-common-project/hadoop-common/pom.xml   |   6 +-
 .../org/apache/hadoop/util/GenericsUtil.java  |   2 +-
 .../org/apache/hadoop/util/TestClassUtil.java |   2 +-
 hadoop-common-project/hadoop-kms/pom.xml      |   6 +-
 hadoop-common-project/hadoop-minikdc/pom.xml  |   2 +-
 hadoop-common-project/hadoop-nfs/pom.xml      |   6 +-
 .../hadoop-hdfs-client/pom.xml                |   4 +-
 .../hadoop-hdfs-httpfs/pom.xml                |   6 +-
 hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml   |   6 +-
 hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml   |   6 +-
 hadoop-hdfs-project/hadoop-hdfs/pom.xml       |   6 +-
 .../hadoop-mapreduce-client/pom.xml           |   2 +-
 hadoop-mapreduce-project/pom.xml              |   2 +-
 hadoop-project/pom.xml                        | 117 +++++++++++++++++-
 hadoop-tools/hadoop-azure/pom.xml             |   4 +-
 .../pom.xml                                   |   4 +-
 .../hadoop-yarn-services-core/pom.xml         |   4 +-
 .../hadoop-yarn/hadoop-yarn-client/pom.xml    |   4 +-
 .../hadoop-yarn/hadoop-yarn-common/pom.xml    |   4 +-
 .../pom.xml                                   |   4 +-
 37 files changed, 195 insertions(+), 94 deletions(-)

diff --git a/LICENSE-binary b/LICENSE-binary
index e9b64aa3f5..faeab9a50b 100644
--- a/LICENSE-binary
+++ b/LICENSE-binary
@@ -208,6 +208,7 @@ License Version 2.0:
 hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/checker/AbstractFuture.java
 hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/checker/TimeoutFuture.java
 
+ch.qos.reload4j:reload4j:1.2.18.3
 com.aliyun:aliyun-java-sdk-core:3.4.0
 com.aliyun:aliyun-java-sdk-ecs:4.2.0
 com.aliyun:aliyun-java-sdk-ram:3.0.0
@@ -273,7 +274,6 @@ io.reactivex:rxjava-string:1.1.1
 io.reactivex:rxnetty:0.4.20
 io.swagger:swagger-annotations:1.5.4
 javax.inject:javax.inject:1
-log4j:log4j:1.2.17
 net.java.dev.jna:jna:5.2.0
 net.minidev:accessors-smart:2.4.7
 net.minidev:json-smart:2.4.7
@@ -436,9 +436,10 @@ org.codehaus.mojo:animal-sniffer-annotations:1.17
 org.jruby.jcodings:jcodings:1.0.13
 org.jruby.joni:joni:2.1.2
 org.ojalgo:ojalgo:43.0
-org.slf4j:jul-to-slf4j:1.7.30
-org.slf4j:slf4j-api:1.7.30
-org.slf4j:slf4j-log4j12:1.7.30
+org.slf4j:jcl-over-slf4j:1.7.35
+org.slf4j:jul-to-slf4j:1.7.35
+org.slf4j:slf4j-api:1.7.35
+org.slf4j:slf4j-reload4j:1.7.35
 
 
 CDDL 1.1 + GPLv2 with classpath exception
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
index 448035262e..b2ce562231 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-dynamometer.xml
@@ -66,7 +66,7 @@
       <excludes>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
       </excludes>
     </dependencySet>
   </dependencySets>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
index 0edfdeb7b0..af5d89d7ef 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-hdfs-nfs-dist.xml
@@ -40,7 +40,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
index d698a3005d..bec2f94b95 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-httpfs-dist.xml
@@ -69,7 +69,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
index ff6f99080c..e5e6834b04 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-kms-dist.xml
@@ -69,7 +69,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
index 06a55d6d06..28d5ebe9f6 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-mapreduce-dist.xml
@@ -179,7 +179,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
         <exclude>jdiff:jdiff:jar</exclude>
       </excludes>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
index cb3d9cdf24..59000c0711 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-nfs-dist.xml
@@ -40,7 +40,7 @@
         <exclude>org.apache.hadoop:hadoop-hdfs</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
index 054d8c0ace..1b9140f419 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-tools.xml
@@ -214,7 +214,7 @@
         <exclude>org.apache.hadoop:hadoop-pipes</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
       </excludes>
     </dependencySet>
   </dependencySets>
diff --git a/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml b/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
index 4da4ac5acb..cd86ce4e41 100644
--- a/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
+++ b/hadoop-assemblies/src/main/resources/assemblies/hadoop-yarn-dist.xml
@@ -309,7 +309,7 @@
         <exclude>org.apache.hadoop:*</exclude>
         <!-- use slf4j from common to avoid multiple binding warnings -->
         <exclude>org.slf4j:slf4j-api</exclude>
-        <exclude>org.slf4j:slf4j-log4j12</exclude>
+        <exclude>org.slf4j:slf4j-reload4j</exclude>
         <exclude>org.hsqldb:hsqldb</exclude>
       </excludes>
     </dependencySet>
diff --git a/hadoop-client-modules/hadoop-client-check-invariants/pom.xml b/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
index 9d1deb6364..c58353c3dd 100644
--- a/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
+++ b/hadoop-client-modules/hadoop-client-check-invariants/pom.xml
@@ -84,8 +84,8 @@
                     <exclude>org.slf4j:slf4j-api</exclude>
                     <!-- 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>
+                    <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                    <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 -->
diff --git a/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml b/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
index b96210dde7..c7d7a8ee74 100644
--- a/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
+++ b/hadoop-client-modules/hadoop-client-check-test-invariants/pom.xml
@@ -88,8 +88,8 @@
                     <exclude>org.slf4j:slf4j-api</exclude>
                     <!-- 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>
+                    <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                    <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 -->
diff --git a/hadoop-client-modules/hadoop-client-integration-tests/pom.xml b/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
index 5121021020..d74c9c19ce 100644
--- a/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
+++ b/hadoop-client-modules/hadoop-client-integration-tests/pom.xml
@@ -33,8 +33,8 @@
 
   <dependencies>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-client-modules/hadoop-client-minicluster/pom.xml b/hadoop-client-modules/hadoop-client-minicluster/pom.xml
index d5ca75cbb4..aa64544e7d 100644
--- a/hadoop-client-modules/hadoop-client-minicluster/pom.xml
+++ b/hadoop-client-modules/hadoop-client-minicluster/pom.xml
@@ -193,8 +193,12 @@
           <artifactId>slf4j-log4j12</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-reload4j</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
         <exclusion>
           <groupId>com.fasterxml.jackson.core</groupId>
@@ -682,7 +686,7 @@
                       <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>
                       <exclude>org.eclipse.jetty.websocket:websocket-common</exclude>
                       <exclude>org.eclipse.jetty.websocket:websocket-api</exclude>
                       <!-- We need a filter that matches just those things that are included in the above artiacts -->
diff --git a/hadoop-client-modules/hadoop-client-runtime/pom.xml b/hadoop-client-modules/hadoop-client-runtime/pom.xml
index cf9b95286e..d4f636de71 100644
--- a/hadoop-client-modules/hadoop-client-runtime/pom.xml
+++ b/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>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
       <optional>true</optional>
     </dependency>
@@ -150,8 +150,8 @@
                       <exclude>org.slf4j:slf4j-api</exclude>
                       <!-- 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>
+                      <!-- Leave reload4j unshaded so downstream users can configure logging. -->
+                      <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>
diff --git a/hadoop-client-modules/hadoop-client/pom.xml b/hadoop-client-modules/hadoop-client/pom.xml
index 9670a8a39a..1741121724 100644
--- a/hadoop-client-modules/hadoop-client/pom.xml
+++ b/hadoop-client-modules/hadoop-client/pom.xml
@@ -206,8 +206,8 @@
           <artifactId>commons-cli</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <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>
 
diff --git a/hadoop-common-project/hadoop-auth-examples/pom.xml b/hadoop-common-project/hadoop-auth-examples/pom.xml
index 27580e50c8..ce5130d49a 100644
--- a/hadoop-common-project/hadoop-auth-examples/pom.xml
+++ b/hadoop-common-project/hadoop-auth-examples/pom.xml
@@ -47,13 +47,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-common-project/hadoop-auth/pom.xml b/hadoop-common-project/hadoop-auth/pom.xml
index 923be91e90..c281286963 100644
--- a/hadoop-common-project/hadoop-auth/pom.xml
+++ b/hadoop-common-project/hadoop-auth/pom.xml
@@ -82,13 +82,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-common-project/hadoop-common/pom.xml b/hadoop-common-project/hadoop-common/pom.xml
index 086a77f26d..791429c8ff 100644
--- a/hadoop-common-project/hadoop-common/pom.xml
+++ b/hadoop-common-project/hadoop-common/pom.xml
@@ -159,8 +159,8 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -205,7 +205,7 @@
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
+      <artifactId>slf4j-reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
index 0aba34845a..334e370214 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/GenericsUtil.java
@@ -85,7 +85,7 @@ public static boolean isLog4jLogger(Class<?> clazz) {
     }
     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;
diff --git a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
index 98e182236c..04337929ab 100644
--- a/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
+++ b/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestClassUtil.java
@@ -35,6 +35,6 @@ public void testFindContainingJar() {
     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"));
   }
 }
diff --git a/hadoop-common-project/hadoop-kms/pom.xml b/hadoop-common-project/hadoop-kms/pom.xml
index 71be87347a..986cfe4a00 100644
--- a/hadoop-common-project/hadoop-kms/pom.xml
+++ b/hadoop-common-project/hadoop-kms/pom.xml
@@ -134,8 +134,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-common-project/hadoop-minikdc/pom.xml b/hadoop-common-project/hadoop-minikdc/pom.xml
index 746d72c429..441ac244f3 100644
--- a/hadoop-common-project/hadoop-minikdc/pom.xml
+++ b/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>
diff --git a/hadoop-common-project/hadoop-nfs/pom.xml b/hadoop-common-project/hadoop-nfs/pom.xml
index baddec8272..06af676811 100644
--- a/hadoop-common-project/hadoop-nfs/pom.xml
+++ b/hadoop-common-project/hadoop-nfs/pom.xml
@@ -79,13 +79,13 @@
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml
index f85db539eb..e468a2e154 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/pom.xml
+++ b/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>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
       </exclusions>
     </dependency>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
index e571d744e5..6470e3aa75 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-httpfs/pom.xml
@@ -179,8 +179,8 @@
       <type>test-jar</type>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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 -->
diff --git a/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml
index 0d8ef6c4c0..442a360129 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-nfs/pom.xml
+++ b/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>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <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>
diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml b/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
index b37a1de11e..02d5bfae3b 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/pom.xml
@@ -54,8 +54,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
           <artifactId>commons-logging</artifactId>
         </exclusion>
         <exclusion>
-          <groupId>log4j</groupId>
-          <artifactId>log4j</artifactId>
+          <groupId>ch.qos.reload4j</groupId>
+          <artifactId>reload4j</artifactId>
         </exclusion>
       </exclusions>
     </dependency>
@@ -71,7 +71,7 @@ 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>
diff --git a/hadoop-hdfs-project/hadoop-hdfs/pom.xml b/hadoop-hdfs-project/hadoop-hdfs/pom.xml
index 1523fc4021..ad0041defd 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/pom.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/pom.xml
@@ -118,8 +118,8 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <scope>compile</scope>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>compile</scope>
     </dependency>
     <dependency>
@@ -162,7 +162,7 @@ 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>
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml b/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
index df6f081a8d..f862ecd683 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/pom.xml
@@ -86,7 +86,7 @@
     </dependency>
     <dependency>
      <groupId>org.slf4j</groupId>
-       <artifactId>slf4j-log4j12</artifactId>
+       <artifactId>slf4j-reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>
diff --git a/hadoop-mapreduce-project/pom.xml b/hadoop-mapreduce-project/pom.xml
index cba6031809..b095117644 100644
--- a/hadoop-mapreduce-project/pom.xml
+++ b/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>
diff --git a/hadoop-project/pom.xml b/hadoop-project/pom.xml
index c8411a5f58..75df4c5888 100644
--- a/hadoop-project/pom.xml
+++ b/hadoop-project/pom.xml
@@ -81,8 +81,8 @@
     <httpcore.version>4.4.13</httpcore.version>
 
     <!-- SLF4J/LOG4J version -->
-    <slf4j.version>1.7.30</slf4j.version>
-    <log4j.version>1.2.17</log4j.version>
+    <slf4j.version>1.7.36</slf4j.version>
+    <reload4j.version>1.2.18.3</reload4j.version>
 
     <!-- com.google.re2j version -->
     <re2j.version>1.1</re2j.version>
@@ -298,12 +298,28 @@
         <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>
@@ -374,6 +390,12 @@
         <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>
@@ -387,6 +409,12 @@
         <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>
@@ -960,9 +988,9 @@
         <version>${commons-logging-api.version}</version>
       </dependency>
       <dependency>
-        <groupId>log4j</groupId>
-        <artifactId>log4j</artifactId>
-        <version>${log4j.version}</version>
+        <groupId>ch.qos.reload4j</groupId>
+        <artifactId>reload4j</artifactId>
+        <version>${reload4j.version}</version>
         <exclusions>
           <exclusion>
             <groupId>com.sun.jdmk</groupId>
@@ -1106,7 +1134,7 @@
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-log4j12</artifactId>
+        <artifactId>slf4j-reload4j</artifactId>
         <version>${slf4j.version}</version>
       </dependency>
       <dependency>
@@ -1312,6 +1340,10 @@
             <groupId>org.apache.kerby</groupId>
             <artifactId>kerby-config</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
           <exclusion>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
@@ -1320,6 +1352,10 @@
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-reload4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1348,6 +1384,14 @@
             <groupId>io.netty</groupId>
             <artifactId>netty-transport-native-epoll</artifactId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1487,6 +1531,10 @@
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
          </exclusion>
+         <exclusion>
+           <groupId>log4j</groupId>
+           <artifactId>log4j</artifactId>
+         </exclusion>
        </exclusions>
      </dependency>
      <dependency>
@@ -1601,6 +1649,10 @@
             <artifactId>jdk.tools</artifactId>
             <groupId>jdk.tools</groupId>
           </exclusion>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
         </exclusions>
       </dependency>
       <dependency>
@@ -1609,6 +1661,16 @@
         <version>${hbase.version}</version>
         <scope>test</scope>
         <classifier>tests</classifier>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1626,6 +1688,28 @@
         <groupId>org.apache.hbase</groupId>
         <artifactId>hbase-server</artifactId>
         <version>${hbase.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+        </exclusions>
+      </dependency>
+      <dependency>
+        <groupId>org.apache.hbase</groupId>
+        <artifactId>hbase-server</artifactId>
+        <version>${hbase.version}</version>
+        <scope>test</scope>
+        <exclusions>
+          <exclusion>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.apache.hbase</groupId>
@@ -1633,6 +1717,16 @@
         <version>${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>
@@ -1657,6 +1751,14 @@
             <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>
@@ -2167,6 +2269,9 @@
                     <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 -->
diff --git a/hadoop-tools/hadoop-azure/pom.xml b/hadoop-tools/hadoop-azure/pom.xml
index 40a401bb7c..cf7540c36a 100644
--- a/hadoop-tools/hadoop-azure/pom.xml
+++ b/hadoop-tools/hadoop-azure/pom.xml
@@ -306,8 +306,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>test</scope>
     </dependency>
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
index 387d4a9741..cb2a32d70b 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/pom.xml
@@ -46,8 +46,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop.thirdparty</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
index 02b6b7124d..fb8cc764f9 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/pom.xml
@@ -118,8 +118,8 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
       <scope>runtime</scope>
     </dependency>
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
index 368a0251ae..6977afde46 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml
@@ -47,8 +47,8 @@
       <artifactId>commons-cli</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty.websocket</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
index 661b54cd91..ec32bbd6e2 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml
@@ -164,8 +164,8 @@
       <artifactId>jersey-guice</artifactId>
     </dependency>
     <dependency>
-     <groupId>log4j</groupId>
-     <artifactId>log4j</artifactId>
+     <groupId>ch.qos.reload4j</groupId>
+     <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
index 68574b4570..40e5b7a0f0 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/pom.xml
@@ -160,8 +160,8 @@
       <artifactId>hadoop-shaded-guava</artifactId>
     </dependency>
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
+      <groupId>ch.qos.reload4j</groupId>
+      <artifactId>reload4j</artifactId>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>