Enforce JaCoCo execution by default with opt-out via jacocoStrict (#4977)

Author: lobaorn

pom.xml

@@ -54,6 +54,7 @@
 
     <version.bytebuddy>1.15.10</version.bytebuddy>
     <version.mockito>4.11.0</version.mockito>
+    <jacocoStrict>true</jacocoStrict>
 
     <!-- Can not use default, since group id != Java package name here -->
     <osgi.export>com.fasterxml.jackson.databind.*;version=${project.version}</osgi.export>
@@ -215,6 +216,23 @@
 	    <phase>validate</phase>
             <goals><goal>enforce</goal></goals>
           </execution>
+          <execution>
+            <id>enforce-jacoco-exec</id>
+            <phase>verify</phase>
+            <goals>
+                <goal>enforce</goal>
+            </goals>
+            <configuration>
+                <rules>
+                    <requireFilesExist>
+                        <files>
+                            <file>${project.build.directory}/jacoco.exec</file>
+                        </files>
+                    </requireFilesExist>
+                </rules>
+                <fail>${jacocoStrict}</fail>
+            </configuration>
+          </execution>
         </executions>
       </plugin>