Merge branch 'master' into master

Author: justinharringa

pom.xml

@@ -86,7 +86,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
@@ -111,7 +111,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
-                <version>3.1.0</version>
+                <version>3.2.1</version>
             </plugin>
 
             <plugin>
@@ -171,7 +171,7 @@
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
-                <version>23.6-jre</version>
+                <version>27.1-jre</version>
             </dependency>
             <dependency>
                 <groupId>net.sourceforge.argparse4j</groupId>
@@ -191,7 +191,7 @@
             <dependency>
                 <groupId>org.assertj</groupId>
                 <artifactId>assertj-core</artifactId>
-                <version>3.9.0</version>
+                <version>3.12.2</version>
             </dependency>
             <dependency>
                 <groupId>commons-io</groupId>