Requiring JDK 8 as a minimum version
diff --git a/pom.xml b/pom.xml
index 5841d0c..b970e16 100644
--- a/pom.xml
+++ b/pom.xml
@@ -76,6 +76,7 @@
     <commons-codec.version>1.4</commons-codec.version>
     <commons-logging.version>1.2</commons-logging.version>
     <ini4j.version>0.5.4</ini4j.version>
+    <targetJdk.version>1.8</targetJdk.version>
   </properties>
 
   <prerequisites>
@@ -126,8 +127,8 @@
           <artifactId>maven-compiler-plugin</artifactId>
           <version>3.6.2</version>
           <configuration>
-            <source>1.7</source>
-            <target>1.7</target>
+            <source>${targetJdk.version}</source>
+            <target>${targetJdk.version}</target>
             <encoding>UTF-8</encoding>
           </configuration>
         </plugin>
@@ -222,7 +223,7 @@
             <failOnViolation>true</failOnViolation>
             <verbose>true</verbose>
             <includeTests>true</includeTests>
-            <targetJdk>1.7</targetJdk>
+            <targetJdk>${targetJdk.version}</targetJdk>
           </configuration>
           <executions>
             <execution>
@@ -367,7 +368,7 @@
         <artifactId>modernizer-maven-plugin</artifactId>
         <version>1.5.0</version>
         <configuration>
-          <javaVersion>1.7</javaVersion>
+          <javaVersion>${targetJdk.version}</javaVersion>
         </configuration>
         <executions>
           <execution>