Fix release plugin versions.

Author: millems

build-tools/pom.xml

@@ -38,15 +38,22 @@
                 </configuration>
             </plugin>
 
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.0.1</version>
+            </plugin>
+
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>build-helper-maven-plugin</artifactId>
+                <version>3.0.0</version>
             </plugin>
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-deploy-plugin</artifactId>
-                <version>3.1.1</version>
+                <version>2.8.2</version>
                 <configuration>
                     <skip>true</skip>
                 </configuration>

pom.xml

@@ -122,10 +122,13 @@
         <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
         <maven-javadoc-plugin.version>3.0.1</maven-javadoc-plugin.version>
         <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+        <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
         <checkstyle.version>7.8.2</checkstyle.version>
         <jacoco-maven-plugin.version>0.8.2</jacoco-maven-plugin.version>
         <nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
+        <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
+        <build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
 
         <!-- These properties are used by Step functions for its dependencies -->
         <json-path.version>2.4.0</json-path.version>
@@ -233,7 +236,7 @@
                 <plugin>
                     <groupId>org.codehaus.mojo</groupId>
                     <artifactId>build-helper-maven-plugin</artifactId>
-                    <version>3.0.0</version>
+                    <version>${build-helper-maven-plugin.version}</version>
                     <executions>
                         <execution>
                             <id>add-integ-sources</id>
@@ -351,21 +354,43 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
             </plugin>
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
+                <version>${maven-javadoc-plugin.version}</version>
             </plugin>
 
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>build-helper-maven-plugin</artifactId>
+                <version>${build-helper-maven-plugin.version}</version>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>${maven-javadoc-plugin.version}</version>
+            </plugin>
+
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <version>${build-helper-maven-plugin.version}</version>
             </plugin>
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-dependency-plugin</artifactId>
+                <version>${maven-dependency-plugin.version}</version>
                 <executions>
                     <execution>
                         <goals>
@@ -395,6 +420,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>${maven-checkstyle-plugin.version}</version>
             </plugin>
 
             <plugin>
@@ -424,6 +450,7 @@
             <plugin>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-maven-plugin</artifactId>
+                <version>${spotbugs.version}</version>
             </plugin>
 
         </plugins>
@@ -437,6 +464,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
+                        <version>${maven-gpg-plugin.version}</version>
                         <executions>
                             <execution>
                                 <id>sign-artifacts</id>
@@ -574,6 +602,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
+                        <version>${maven-javadoc-plugin.version}</version>
                         <configuration>
                             <minmemory>128m</minmemory>
                             <maxmemory>4g</maxmemory>