Update PMD plugin from 3.2 to 3.6: no more false positives.
diff --git a/pom.xml b/pom.xml
index fbe55a6..e699204 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
     <commons.release.version>${project.version}</commons.release.version>
     <commons.rc.version>RC1</commons.rc.version>
     <powermock.version>1.6.4</powermock.version>
-    <commons.pmd-plugin.version>3.2</commons.pmd-plugin.version>
+    <commons.pmd-plugin.version>3.6</commons.pmd-plugin.version>
   </properties>
 
   <issueManagement>
@@ -243,13 +243,6 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-pmd-plugin</artifactId>
         <version>${commons.pmd-plugin.version}</version>
-        <dependencies>
-          <dependency>
-            <groupId>net.sourceforge.pmd</groupId>
-            <artifactId>pmd</artifactId>
-            <version>5.1.3</version>
-          </dependency>
-        </dependencies>
       </plugin>
     </plugins>
   </build>