Sign jars before packing

Signed-off-by: Fred Bricon <fbricon@gmail.com>
diff --git a/pom.xml b/pom.xml
index 84a0815..ce56ee6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -221,6 +221,7 @@
                 <goals>
                   <goal>normalize</goal>
                 </goals>
+                <phase>verify</phase>
               </execution>
             </executions>
           </plugin>
@@ -250,6 +251,7 @@
                 <goals>
                   <goal>pack</goal>
                 </goals>
+                <phase>verify</phase>
               </execution>
             </executions>
           </plugin>