SLING-10735 Enable code checks with PMD
diff --git a/pom.xml b/pom.xml
index 5114b00..ff16fa1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -110,6 +110,22 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-pmd-plugin</artifactId>
+        <version>3.14.0</version>
+        <configuration>
+          <targetJdk>${sling.java.version}</targetJdk>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>process-classes</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>