Switch from cobertura to jacoco since cobertura has been abandoned

Author: psiniemi

.gitignore

@@ -2,3 +2,5 @@
 .classpath
 .project
 .settings/
+.idea
+.vscode

.travis.yml

@@ -9,7 +9,7 @@ before_install:
 - .travis/prepare
 
 script:
-- mvn cobertura:cobertura
+- mvn clean test
 
 after_success:
 - bash <(curl -s https://codecov.io/bash)

pom.xml

@@ -142,19 +142,26 @@
         		</execution>
       		</executions>
     	</plugin>
-    	<plugin>
-            <groupId>org.codehaus.mojo</groupId>
-            <artifactId>cobertura-maven-plugin</artifactId>
-            <version>2.7</version>
-            <configuration>
-                <formats>
-                    <format>html</format>
-                    <format>xml</format>
-                </formats>
-                <check />
-            </configuration>
+        <plugin>
+            <groupId>org.jacoco</groupId>
+            <artifactId>jacoco-maven-plugin</artifactId>
+            <version>0.8.5</version>
+            <executions>
+                <execution>
+                    <goals>
+                        <goal>prepare-agent</goal>
+                    </goals>
+                </execution>
+                <execution>
+                    <id>report</id>
+                    <phase>test</phase>
+                    <goals>
+                        <goal>report</goal>
+                    </goals>
+                </execution>
+            </executions>
         </plugin>
-   	</plugins>
+    </plugins>
   </build>
 
   <version>1.0.1</version>