Set pmd jdk to 1.5

core-tiger/pom.xml

@@ -34,4 +34,15 @@
       </plugin>
     </plugins>
   </build>
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-pmd-plugin</artifactId>
+        <configuration>
+          <targetJdk>1.5</targetJdk>
+        </configuration>
+      </plugin>
+    </plugins>
+  </reporting>
 </project>