HADOOP-14290. Update SLF4J from 1.7.10 to 1.7.25.

(cherry picked from commit 5d38504071d72745c42588c7a6e76bcffb13832c)

LICENSE.txt

@@ -516,7 +516,9 @@ hadoop-tools/hadoop-sls/src/main/html/css/bootstrap-responsive.min.css
 And the binary distribution of this product bundles these dependencies under the
 following license:
 Mockito 1.8.5
-SLF4J 1.7.10
+JUL to SLF4J bridge 1.7.25
+SLF4J API Module 1.7.25
+SLF4J LOG4J-12 Binding 1.7.25
 --------------------------------------------------------------------------------
 
 The MIT License (MIT)

hadoop-project/pom.xml

@@ -70,6 +70,9 @@
     <jackson.version>1.9.13</jackson.version>
     <jackson2.version>2.7.8</jackson2.version>
 
+    <!-- SLF4J version -->
+    <slf4j.version>1.7.25</slf4j.version>
+
     <!-- ProtocolBuffer version, used to verify the protoc version and -->
     <!-- define the protobuf JAR version                               -->
     <protobuf.version>2.5.0</protobuf.version>
@@ -740,17 +743,17 @@
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
-        <version>1.7.10</version>
+        <version>${slf4j.version}</version>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-log4j12</artifactId>
-        <version>1.7.10</version>
+        <version>${slf4j.version}</version>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>jul-to-slf4j</artifactId>
-        <version>1.7.10</version>
+        <version>${slf4j.version}</version>
       </dependency>
       <dependency>
         <groupId>org.eclipse.jdt</groupId>