Updates to plugins/dependencies

Also added a requirement for java 11 or newer

pom.xml

@@ -3,7 +3,7 @@
 
 	<groupId>org.fross</groupId>
 	<artifactId>rpncalc</artifactId>
-	<version>5.3.0</version>
+	<version>5.3.1</version>
 	<packaging>jar</packaging>
 
 	<name>rpncalc</name>
@@ -66,6 +66,9 @@
 								<requireMavenVersion>
 									<version>${maven.minimum.version}</version>
 								</requireMavenVersion>
+								<requireJavaVersion>
+									<version>${maven.compiler.release}</version>
+								</requireJavaVersion>
 							</rules>
 						</configuration>
 					</execution>
@@ -103,7 +106,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.3.1</version>
+				<version>3.4.0</version>
 			</plugin>
 
 			<!-- ========================================================================================== -->
@@ -208,7 +211,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>exec-maven-plugin</artifactId>
-				<version>3.4.0</version>
+				<version>3.4.1</version>
 				<executions>
 					<execution>
 						<id>chmod</id>
@@ -236,7 +239,7 @@
 
 	<!-- Define additional package repositories.  Maven is included by default -->
 	<repositories>
-		<!-- Define my custom Github repository where Library lives -->
+		<!-- Define my custom GitHub repository where Library lives -->
 		<repository>
 			<id>github</id>
 			<name>GitHub frossm Library Package</name>
@@ -276,7 +279,7 @@
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter</artifactId>
-			<version>5.11.0-RC1</version>
+			<version>5.11.0</version>
 			<scope>test</scope>
 		</dependency>
 

snap/snapcraft.yaml

@@ -1,5 +1,5 @@
 name: rpncalc
-version: '5.3.0'
+version: '5.3.1'
 summary: The command line Reverse Polish Notation (RPN) calculator
 description: |
   RPNCalc is an easy to use command line based Reverse Polish