pmd update

rbri · rbri · commit 16aca54bcd75 · 2020-01-24T20:00:48.000+01:00
diff --git a/pom.xml b/pom.xml
@@ -37,7 +37,7 @@
         <!-- As a property, as it is included in Checkstyle build -->
         <checkstyle.version>8.28</checkstyle.version>
         <spotbugs.version>3.1.12</spotbugs.version>
-        <pmd.version>6.20.0</pmd.version>
+        <pmd.version>6.21.0</pmd.version>
     </properties>
 
     <build>
