diff --git a/pom.xml b/pom.xml
index a35a965..d9cdb4d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -147,23 +147,112 @@
             </execution>
           </executions>
         </plugin>
+        <plugin>
+          <groupId>com.mycila</groupId>
+          <artifactId>license-maven-plugin</artifactId>
+          <version>3.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-eclipse-plugin</artifactId>
+          <version>2.10</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-enforcer-plugin</artifactId>
+          <version>3.0.0-M2</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-release-plugin</artifactId>
+          <version>2.5.3</version>
+        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-javadoc-plugin</artifactId>
+          <artifactId>maven-resources-plugin</artifactId>
           <version>3.1.0</version>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-source-plugin</artifactId>
+          <version>3.0.1</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-surefire-report-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>findbugs-maven-plugin</artifactId>
+          <version>3.0.5</version>
+        </plugin>
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>javancss-maven-plugin</artifactId>
+          <version>2.1</version>
+        </plugin>
+        <plugin>
+          <groupId>org.codehaus.mojo</groupId>
+          <artifactId>jdepend-maven-plugin</artifactId>
+          <version>2.0</version>
+        </plugin>
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>versions-maven-plugin</artifactId>
           <version>2.7</version>
         </plugin>
+        <plugin>
+          <groupId>org.sonatype.plugins</groupId>
+          <artifactId>nexus-staging-maven-plugin</artifactId>
+          <version>1.6.8</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-enforcer-plugin</artifactId>
-        <version>3.0.0-M2</version>
         <executions>
           <execution>
             <id>enforce-maven</id>
@@ -184,7 +273,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-eclipse-plugin</artifactId>
-        <version>2.10</version>
         <configuration>
           <additionalConfig>
             <file>
@@ -199,27 +287,22 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-clean-plugin</artifactId>
-        <version>3.1.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-jar-plugin</artifactId>
-        <version>3.1.0</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-deploy-plugin</artifactId>
-        <version>2.8.2</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-install-plugin</artifactId>
-        <version>2.5.2</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>3.1.0</version>
         <configuration>
           <encoding>${project.build.sourceEncoding}</encoding>
         </configuration>
@@ -227,7 +310,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.8.0</version>
         <configuration>
           <source>${maven.compiler.source}</source>
           <target>${maven.compiler.source}</target>
@@ -237,7 +319,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.1</version>
         <configuration>
           <includes>
             <include>**/*Test.java</include>
@@ -248,7 +329,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-release-plugin</artifactId>
-        <version>2.5.3</version>
         <configuration>
           <autoVersionSubmodules>true</autoVersionSubmodules>
           <useReleaseProfile>false</useReleaseProfile>
@@ -259,7 +339,6 @@
       <plugin>
         <groupId>org.sonatype.plugins</groupId>
         <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.8</version>
         <extensions>true</extensions>
         <configuration>
           <serverId>ossrh</serverId>
@@ -270,7 +349,6 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.0.1</version>
         <executions>
           <execution>
             <id>attach-sources</id>
@@ -283,7 +361,6 @@
       <plugin>
         <groupId>com.mycila</groupId>
         <artifactId>license-maven-plugin</artifactId>
-        <version>3.0</version>
         <configuration>
           <!-- Template location -->
           <header>licence-header.txt</header>
@@ -320,23 +397,19 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-site-plugin</artifactId>
-        <version>3.7.1</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>javancss-maven-plugin</artifactId>
-        <version>2.1</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>jdepend-maven-plugin</artifactId>
-        <version>2.0</version>
       </plugin>
       <!-- Findbugs was replaced by spotbugs but requires java 8 to run, consider switching -->
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>findbugs-maven-plugin</artifactId>
-        <version>3.0.5</version>
         <configuration>
           <effort>Max</effort>
         </configuration>
@@ -344,12 +417,10 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-report-plugin</artifactId>
-        <version>2.22.1</version>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-project-info-reports-plugin</artifactId>
-        <version>3.0</version>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
@@ -362,11 +433,24 @@
     <profile>
       <id>release</id>
       <build>
+        <pluginManagement>
+          <plugins>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-gpg-plugin</artifactId>
+              <version>1.6</version>
+            </plugin>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-javadoc-plugin</artifactId>
+              <version>3.1.1</version>
+            </plugin>
+          </plugins>
+        </pluginManagement>
         <plugins>
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>1.6</version>
             <executions>
               <execution>
                 <id>sign-artifacts</id>