clean code

Author: mjacoby

pom.xml

@@ -87,8 +87,8 @@
                                     <include>*.md</include>
                                     <include>.gitignore</include>
                                 </includes>
-                                <trimTrailingWhitespace></trimTrailingWhitespace>
-                                <endWithNewline></endWithNewline>
+                                <trimTrailingWhitespace/>
+                                <endWithNewline/>
                                 <indent>
                                     <tabs>true</tabs>
                                     <spacesPerTab>4</spacesPerTab>
@@ -111,8 +111,8 @@
                                 <include>src/main/java/**/*.java</include>
                                 <include>src/test/java/**/*.java</include>
                             </includes>
-                            <importOrder></importOrder>
-                            <removeUnusedImports></removeUnusedImports>
+                            <importOrder/>
+                            <removeUnusedImports/>
                             <licenseHeader>
                                 <file>license-header</file>
                             </licenseHeader>