(fix) findbugs errors
diff --git a/fb-excludes.xml b/fb-excludes.xml
index 625061b..04b5144 100755
--- a/fb-excludes.xml
+++ b/fb-excludes.xml
@@ -33,7 +33,7 @@
   </Match>
   <Match>
     <Class name="~.*\.*CommonsDistributionDetachmentMojo.*" />
-    <Bug pattern="DM_DEFAULT_ENCODING" />
+    <Bug pattern="DM_DEFAULT_ENCODING,OBL_UNSATISFIED_OBLIGATION" />
   </Match>
   <Match>
     <Class name="~.*\.*CommonsDistributionStagingMojo.*" />