diff --git a/pom.xml b/pom.xml
index 27c54b32..efbfa29f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -205,6 +205,10 @@
       <artifactId>maven-reporting-impl</artifactId>
       <version>3.2.0</version>
       <exclusions>
+        <exclusion>
+          <groupId>org.apache.maven</groupId>
+          <artifactId>*</artifactId>
+        </exclusion>
         <exclusion>
           <groupId>org.codehaus.plexus</groupId>
           <artifactId>plexus-container-default</artifactId>
@@ -236,6 +240,10 @@
       <artifactId>doxia-site-renderer</artifactId>
       <version>${doxiaRendererVersion}</version>
       <exclusions>
+        <exclusion>
+          <groupId>org.apache.maven</groupId>
+          <artifactId>*</artifactId>
+        </exclusion>
         <exclusion>
           <groupId>org.codehaus.plexus</groupId>
           <artifactId>plexus-container-default</artifactId>
@@ -392,18 +400,9 @@
           <!-- TODO enable with spotless -->
           <skip>true</skip>
           <headerLocation>config/checkstyle-header.txt</headerLocation>
-          <excludes>**/HelpMojo.java,**/SpdxLicenseListData.java</excludes>
           <!-- these are generated -->
+          <excludes>**/HelpMojo.java,**/SpdxLicenseListData.java</excludes>
         </configuration>
-        <executions>
-          <execution>
-            <id>checkstyle-check</id>
-            <goals>
-              <goal>check</goal>
-            </goals>
-            <phase>verify</phase>
-          </execution>
-        </executions>
       </plugin>
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
@@ -530,6 +529,7 @@
           <plugin>
             <artifactId>maven-invoker-plugin</artifactId>
             <configuration>
+              <debug>true</debug>
               <cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>
               <settingsFile>src/it/settings.xml</settingsFile>
               <localRepositoryPath>${project.build.directory}/local-repo</localRepositoryPath>
@@ -628,19 +628,5 @@
         </plugins>
       </reporting>
     </profile>
-    <profile>
-      <id>java11+</id>
-      <activation>
-        <jdk>[11,)</jdk>
-      </activation>
-      <build>
-        <plugins>
-          <plugin>
-            <groupId>com.diffplug.spotless</groupId>
-            <artifactId>spotless-maven-plugin</artifactId>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
   </profiles>
 </project>