⬆️ Upgrading dependencies. (#3)

Author: langecode

mvnvm.properties

@@ -0,0 +1 @@
+mvn_version=3.6.1

pom.xml

@@ -98,7 +98,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.5.1</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
@@ -107,10 +107,15 @@
                     </compilerArgs>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-failsafe-plugin</artifactId>
-                <version>2.19.1</version>
+                <version>2.22.2</version>
                 <executions>
                     <execution>
                         <goals>
@@ -161,7 +166,10 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.0-M1</version>
+                <version>3.1.1</version>
+                <configuration>
+                  <source>1.8</source>
+                </configuration>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>
@@ -211,11 +219,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.19.1</version>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-release-plugin</artifactId>