add pmd in
diff --git a/pom.xml b/pom.xml
index 037d207..02f070f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -478,6 +478,19 @@
                     <ignore />
                   </action>
                 </pluginExecution>
+                <pluginExecution>
+                  <pluginExecutionFilter>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-pmd-plugin</artifactId>
+                    <versionRange>[2.7.1,)</versionRange>
+                    <goals>
+                      <goal>check</goal>
+                    </goals>
+                  </pluginExecutionFilter>
+                  <action>
+                    <ignore></ignore>
+                  </action>
+                </pluginExecution>
               </pluginExecutions>
             </lifecycleMappingMetadata>
           </configuration>