Update mvn dependencies and checkstyle

Author: Animesh Pandey

.gitignore

@@ -0,0 +1,5 @@
+.idea
+*.iml
+target
+build
+out

E:\es_source\vader-sentiment-app.log

@@ -90,7 +90,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.5.1</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>${maven.compiler.target}</source>
                     <target>${maven.compiler.target}</target>
@@ -100,7 +100,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.11</version>
+                <version>3.0.0-M5</version>
                 <configuration>
                     <includes>
                         <include>**/*Test*.java</include>
@@ -111,7 +111,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>2.1.2</version>
+                <version>3.2.1</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>
@@ -125,7 +125,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.9.1</version>
+                <version>3.3.1</version>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>
@@ -139,6 +139,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.2.0</version>
                 <executions>
                     <execution>
                         <id>copy-dependencies</id>
@@ -155,8 +156,9 @@
             </plugin>
 
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
-                <version>2.5.3</version>
+                <version>3.3.0</version>
                 <configuration>
                     <appendAssemblyId>false</appendAssemblyId>
                     <outputDirectory>${project.build.directory}/releases/</outputDirectory>
@@ -182,13 +184,13 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>2.17</version>
+                <version>3.1.2</version>
                 <dependencies>
                     <!-- https://mvnrepository.com/artifact/com.puppycrawl.tools/checkstyle -->
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
                         <artifactId>checkstyle</artifactId>
-                        <version>7.6</version>
+                        <version>8.40</version>
                     </dependency>
                 </dependencies>
                 <executions>
@@ -211,7 +213,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-gpg-plugin</artifactId>
-                <version>1.1</version>
+                <version>3.0.1</version>
                 <executions>
                     <execution>
                         <id>sign-artifacts</id>
@@ -261,4 +263,4 @@
         </dependency>
     </dependencies>
 
-</project>
+</project>