diff --git a/java/pom.xml b/java/pom.xml
index 821da5a..6452926 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -38,65 +38,79 @@
 
         <maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
         <maven.build.timestamp>${maven.build.timestamp}</maven.build.timestamp>
+
+        <protobuf-java.version>4.27.0</protobuf-java.version>
+        <slf4j.version>1.7.30</slf4j.version>
+        <jackson.version>2.13.2</jackson.version>
+        <apache.commons-lang3.version>3.4</apache.commons-lang3.version>
+        <logback.version>1.2.3</logback.version>
+        <junit.version>4.13</junit.version>
+        <jmh.version>1.28</jmh.version>
+        <maven-compiler-plugin.version>3.3</maven-compiler-plugin.version>
+        <maven-source-plugin.version>2.0.2</maven-source-plugin.version>
+        <maven-eclipse-plugin.version>2.6</maven-eclipse-plugin.version>
+        <buildnumber-maven-plugin.version>1.4</buildnumber-maven-plugin.version>
+        <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
+        <formatter-maven-plugin.version>2.16.0</formatter-maven-plugin.version>
     </properties>
     <dependencies>
         <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>4.27.0</version>
+            <version>${protobuf-java.version}</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.30</version>
+            <version>${slf4j.version}</version>
         </dependency>
         <!-- Jackson Core -->
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-core</artifactId>
-            <version>2.13.2</version>
+            <version>${jackson.version}</version>
         </dependency>
         <!-- Jackson Annotations -->
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>2.13.2</version>
+            <version>${jackson.version}</version>
         </dependency>
         <!-- Jackson Databind -->
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.13.2</version>
+            <version>${jackson.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>3.4</version>
+            <version>${apache.commons-lang3.version}</version>
         </dependency>
         <!-- test dependencies -->
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>${logback.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.13</version>
+            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-core</artifactId>
-            <version>1.28</version>
+            <version>${jmh.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-generator-annprocess</artifactId>
-            <version>1.28</version>
+            <version>${jmh.version}</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -105,7 +119,7 @@
             <extension>
                 <groupId>kr.motd.maven</groupId>
                 <artifactId>os-maven-plugin</artifactId>
-                <version>1.7.0</version>
+                <version>${os-maven-plugin.version}</version>
             </extension>
         </extensions>
         <resources>
@@ -131,7 +145,7 @@
             <plugin>
                 <groupId>net.revelc.code.formatter</groupId>
                 <artifactId>formatter-maven-plugin</artifactId>
-                <version>2.16.0</version>
+                <version>${formatter-maven-plugin.version}</version>
                 <configuration>
                     <!-- specify your configuration here -->
                 </configuration>
@@ -198,12 +212,12 @@
                     <target>${java.version}</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
-                <version>3.3</version>
+                <version>${maven-compiler-plugin.version}</version>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>2.0.2</version>
+                <version>${maven-source-plugin.version}</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
@@ -216,7 +230,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-eclipse-plugin</artifactId>
-                <version>2.6</version>
+                <version>${maven-eclipse-plugin.version}</version>
                 <configuration>
                     <downloadSources>true</downloadSources>
                 </configuration>
@@ -229,7 +243,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>buildnumber-maven-plugin</artifactId>
-                <version>1.4</version>
+                <version>${buildnumber-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <phase>validate</phase>
@@ -246,7 +260,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>3.2.0</version>
+                <version>${maven-jar-plugin.version}</version>
                 <configuration>
                     <archive>
                         <manifest>