Add support for JaCoCo

Author: dmaccormack

module/jsonurl-core/pom.xml

@@ -48,6 +48,10 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
       </plugin>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+      </plugin>
     </plugins>
   </build>
 </project>

module/jsonurl-jsonorg/pom.xml

@@ -66,6 +66,10 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
       </plugin>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+      </plugin>
     </plugins>
   </build>
 </project>

module/jsonurl-jsr374/pom.xml

@@ -71,6 +71,10 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
       </plugin>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+      </plugin>
     </plugins>
   </build>
 </project>

module/pom.xml

@@ -49,6 +49,7 @@
     <maven.javadoc.plugin>3.1.1</maven.javadoc.plugin>
     <maven.checkstyle.plugin>3.1.1</maven.checkstyle.plugin>
     <maven.pmd.plugin>3.13.0</maven.pmd.plugin>
+    <maven.jacoco.plugin>0.8.5</maven.jacoco.plugin>
     <maven.gpg.plugin>1.6</maven.gpg.plugin>
     <maven.site.plugin>3.8.2</maven.site.plugin>
     <maven.doxia.plugin>[1.9,)</maven.doxia.plugin>
@@ -72,6 +73,8 @@
     <jsonurl.scm.url>https://github.com/${jsonurl.scm.path}</jsonurl.scm.url>
 
     <checkstyle.config.location>../../config/checkstyle.xml</checkstyle.config.location>
+    <jacoco.minimum.coverage>0.40</jacoco.minimum.coverage>
+    <jacoco.report.dir>target/jacoco</jacoco.report.dir>
   </properties>
 
   <description>
@@ -229,6 +232,43 @@
             </execution>
           </executions>
         </plugin>
+        <plugin>
+          <groupId>org.jacoco</groupId>
+          <artifactId>jacoco-maven-plugin</artifactId>
+          <version>${maven.jacoco.plugin}</version>
+          <executions>
+            <execution>
+              <id>prepare-agent</id>
+              <goals><goal>prepare-agent</goal></goals>
+              <configuration>
+                <outputDirectory>${jacoco.report.dir}</outputDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>test</id>
+              <phase>test</phase>
+              <goals><goal>report</goal><goal>check</goal></goals>
+              <configuration>
+                <outputDirectory>${jacoco.report.dir}</outputDirectory>
+              </configuration>
+            </execution>
+          </executions>
+          <configuration>
+            <outputDirectory>${jacoco.report.dir}</outputDirectory>
+            <rules>
+              <rule>
+                <element>BUNDLE</element>
+                <limits>
+                  <limit>
+                    <counter>COMPLEXITY</counter>
+                    <value>COVEREDRATIO</value>
+                    <minimum>${jacoco.minimum.coverage}</minimum>
+                  </limit>
+                </limits>
+              </rule>
+            </rules>
+          </configuration>
+        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-gpg-plugin</artifactId>