HADOOP-19343: Manage hadoop-gcp Guava version directly in its pom.xml.

Author: cnauroth

hadoop-project/pom.xml

@@ -108,7 +108,7 @@
     <findbugs.version>3.0.5</findbugs.version>
     <dnsjava.version>3.6.1</dnsjava.version>
 
-    <guava.version>33.1.0-jre</guava.version>
+    <guava.version>27.0-jre</guava.version>
     <guice.version>5.1.0</guice.version>
 
     <bouncycastle.version>1.78.1</bouncycastle.version>

hadoop-tools/hadoop-gcp/pom.xml

@@ -427,6 +427,11 @@
 
   <dependencyManagement>
     <dependencies>
+      <dependency>
+        <groupId>com.google.guava</groupId>
+        <artifactId>guava</artifactId>
+        <version>33.1.0-jre</version>
+      </dependency>
       <dependency>
         <!--
         We're using a specific Protobuf version to ensure compatibility with the
@@ -457,6 +462,11 @@
           <groupId>javax.enterprise</groupId>
           <artifactId>cdi-api</artifactId>
         </exclusion>
+        <!-- Exclude guava 27.0-jre -->
+        <exclusion>
+          <groupId>com.google.guava</groupId>
+          <artifactId>guava</artifactId>
+        </exclusion>
         <!-- Exclude protobuf-java 2.5.0 -->
         <exclusion>
           <groupId>com.google.protobuf</groupId>