Use Spotless sortpom plug-in (#4618)

This simplifies the sortpom configuration and also allows for checking and reformatting them using the spotless:check and spotless:apply Maven goals.

Signed-off-by: Wouter Born <github@maindrain.net>

pom.xml

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
@@ -74,7 +74,7 @@
     <sat.version>0.17.0</sat.version>
     <slf4j.version>2.0.16</slf4j.version>
     <xtext.version>2.37.0</xtext.version>
-    <spotless.version>2.43.0</spotless.version>
+    <spotless.version>2.44.3</spotless.version>
     <!-- Eclipse Java formatter version 4.26+ does not check test files -->
     <spotless.eclipse.version>4.25</spotless.eclipse.version>
     <spotless.eclipse.wtp.version>4.21.0</spotless.eclipse.wtp.version>
@@ -340,15 +340,13 @@ Import-Package: \\
             <!-- The search function is broken without the workaround below -->
             <!-- See: https://stackoverflow.com/questions/52326318/maven-javadoc-search-redirects-to-undefined-url -->
             <additionalJOption>--allow-script-in-comments</additionalJOption>
-            <bottom>
-              <![CDATA[
+            <bottom><![CDATA[
                 <script>
                 if (typeof useModuleDirectories !== 'undefined') {
                   useModuleDirectories = false;
                 }
                 </script>
-              ]]>
-            </bottom>
+              ]]></bottom>
             <tags>
               <tag>
                 <name>apiNote</name>
@@ -402,10 +400,8 @@ Import-Package: \\
           <artifactId>maven-surefire-plugin</artifactId>
           <version>3.5.2</version>
           <configuration>
-            <argLine>
-              --add-opens java.base/java.net=ALL-UNNAMED
-              --add-opens java.base/java.util=ALL-UNNAMED
-            </argLine>
+            <argLine>--add-opens java.base/java.net=ALL-UNNAMED
+              --add-opens java.base/java.util=ALL-UNNAMED</argLine>
             <systemPropertyVariables>
               <junit.jupiter.execution.timeout.default>15 m</junit.jupiter.execution.timeout.default>
             </systemPropertyVariables>
@@ -523,29 +519,6 @@ Import-Package: \\
           </executions>
         </plugin>
 
-        <plugin>
-          <groupId>com.github.ekryd.sortpom</groupId>
-          <artifactId>sortpom-maven-plugin</artifactId>
-          <version>4.0.0</version>
-          <configuration>
-            <predefinedSortOrder>recommended_2008_06</predefinedSortOrder>
-            <createBackupFile>false</createBackupFile>
-            <keepBlankLines>true</keepBlankLines>
-          </configuration>
-          <executions>
-            <execution>
-              <id>sortpom-verify</id>
-              <goals>
-                <goal>verify</goal>
-              </goals>
-              <phase>verify</phase>
-              <configuration>
-                <verifyFail>Stop</verifyFail>
-              </configuration>
-            </execution>
-          </executions>
-        </plugin>
-
         <plugin>
           <groupId>com.diffplug.spotless</groupId>
           <artifactId>spotless-maven-plugin</artifactId>
@@ -562,6 +535,15 @@ Import-Package: \\
               </importOrder>
               <endWithNewline/>
             </java>
+            <pom>
+              <sortPom>
+                <expandEmptyElements>false</expandEmptyElements>
+                <indentAttribute>schemaLocation</indentAttribute>
+                <predefinedSortOrder>recommended_2008_06</predefinedSortOrder>
+                <sortDependencyExclusions/>
+                <sortDependencyManagement/>
+              </sortPom>
+            </pom>
             <formats>
               <format>
                 <!-- *.xml -->
@@ -598,21 +580,6 @@ Import-Package: \\
                 <trimTrailingWhitespace/>
                 <endWithNewline/>
               </format>
-              <format>
-                <!-- pom.xml -->
-                <includes>
-                  <include>pom.xml</include>
-                </includes>
-                <eclipseWtp>
-                  <type>XML</type>
-                  <files>
-                    <file>openhab_wst_pom_file.prefs</file>
-                  </files>
-                  <version>${spotless.eclipse.wtp.version}</version>
-                </eclipseWtp>
-                <trimTrailingWhitespace/>
-                <endWithNewline/>
-              </format>
             </formats>
           </configuration>
           <dependencies>
@@ -675,10 +642,6 @@ Import-Package: \\
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>com.github.ekryd.sortpom</groupId>
-        <artifactId>sortpom-maven-plugin</artifactId>
-      </plugin>
       <plugin>
         <groupId>com.diffplug.spotless</groupId>
         <artifactId>spotless-maven-plugin</artifactId>