- Increased minimum java version from Java7 to Java8

- Increased minimum maven version from v3.3.x to v3.6.x
- Updated maven plugins to latest versions

Author: phillipross

pom.xml

@@ -98,8 +98,8 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.min.version>1.7</java.min.version>
-        <maven.min.version>3.3</maven.min.version>
+        <java.min.version>1.8</java.min.version>
+        <maven.min.version>3.6</maven.min.version>
         <maven.test.skip>false</maven.test.skip>
         <surefire.forkCount>1</surefire.forkCount>
         <surefire.useSystemClassLoader>true</surefire.useSystemClassLoader>
@@ -109,34 +109,34 @@
 
         <!-- Plugin versioning -->
         <build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
-        <download-maven-plugin.version>1.4.0</download-maven-plugin.version>
+        <download-maven-plugin.version>1.5.0</download-maven-plugin.version>
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
-        <maven-checkstyle-plugin.version>3.0.0</maven-checkstyle-plugin.version>
+        <maven-checkstyle-plugin.version>3.1.1</maven-checkstyle-plugin.version>
         <maven-clean-plugin.version>3.1.0</maven-clean-plugin.version>
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
-        <maven-dependency-plugin.version>3.1.0</maven-dependency-plugin.version>
+        <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
+        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
         <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
-        <maven-ear-plugin.version>3.0.0</maven-ear-plugin.version>
-        <maven-ejb-plugin.version>3.0.0</maven-ejb-plugin.version>
+        <maven-ear-plugin.version>3.0.2</maven-ear-plugin.version>
+        <maven-ejb-plugin.version>3.0.1</maven-ejb-plugin.version>
         <maven-enforcer-plugin.version>1.4.1</maven-enforcer-plugin.version>
-        <maven-failsafe-plugin.version>2.21.0</maven-failsafe-plugin.version>
+        <maven-failsafe-plugin.version>2.22.2</maven-failsafe-plugin.version>
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
         <maven-install-plugin.version>2.5.2</maven-install-plugin.version>
-        <maven-jar-plugin.version>3.1.0</maven-jar-plugin.version>
-        <maven-jarsigner-plugin.version>1.4</maven-jarsigner-plugin.version>
-        <maven-javadoc-plugin.version>3.0.0</maven-javadoc-plugin.version>
-        <maven-jxr-plugin.version>2.5</maven-jxr-plugin.version>
+        <maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
+        <maven-jarsigner-plugin.version>3.0.0</maven-jarsigner-plugin.version>
+        <maven-javadoc-plugin.version>3.1.1</maven-javadoc-plugin.version>
+        <maven-jxr-plugin.version>3.0.0</maven-jxr-plugin.version>
         <maven-release-plugin.version>2.5.3</maven-release-plugin.version>
-        <maven-resources-plugin.version>3.0.2</maven-resources-plugin.version>
-        <maven-shade-plugin.version>3.1.1</maven-shade-plugin.version>
-        <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
-        <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
-        <maven-versions-plugin.version>2.5</maven-versions-plugin.version>
-        <maven-war-plugin.version>3.2.0</maven-war-plugin.version>
+        <maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
+        <maven-shade-plugin.version>3.2.2</maven-shade-plugin.version>
+        <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <maven-versions-plugin.version>2.7</maven-versions-plugin.version>
+        <maven-war-plugin.version>3.2.3</maven-war-plugin.version>
         <!-- Dependency versions -->
         <dependency.logback.version>1.2.3</dependency.logback.version>
-        <dependency.postgresql-jdbc.version>42.2.5.jre7</dependency.postgresql-jdbc.version>
-        <dependency.slfj.version>1.7.25</dependency.slfj.version>
+        <dependency.postgresql-jdbc.version>42.2.10</dependency.postgresql-jdbc.version>
+        <dependency.slfj.version>1.7.30</dependency.slfj.version>
         <dependency.testng.version>6.14.3</dependency.testng.version>
     </properties>
 
@@ -262,6 +262,9 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>${maven-javadoc-plugin.version}</version>
+                <configuration>
+                    <source>${java.min.version}</source>
+                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>