Fix multi-module site build

Author: garydgregory

pom.xml

@@ -55,7 +55,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/commons-vfs.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/commons-vfs.git</developerConnection>
     <url>https://gitbox.apache.org/repos/asf?p=commons-vfs.git</url>
-    <tag>commons-vfs-project-2.9.0</tag>
+    <tag>HEAD</tag>
   </scm>
   <properties>
     <commons.parent.dir>${basedir}</commons.parent.dir>
@@ -114,7 +114,7 @@
     <japicmp.skip>false</japicmp.skip>
     <jacoco.skip>false</jacoco.skip>
     <!-- project.build.outputTimestamp is managed by Maven plugins, see https://maven.apache.org/guides/mini/guide-reproducible-builds.html -->
-    <project.build.outputTimestamp>2024-01-01T00:00:00Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2025-02-01T21:47:58Z</project.build.outputTimestamp>
   </properties>
 
   <build>
@@ -303,6 +303,18 @@
           </tags>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jxr-plugin</artifactId>
+        <reportSets>
+          <reportSet>
+            <reports>
+              <report>jxr-no-fork</report>
+              <report>test-jxr-no-fork</report>
+            </reports>
+          </reportSet>
+        </reportSets>
+      </plugin>
       <plugin>
         <groupId>com.github.spotbugs</groupId>
         <artifactId>spotbugs-maven-plugin</artifactId>
@@ -317,8 +329,14 @@
         <artifactId>maven-pmd-plugin</artifactId>
         <configuration>
           <targetJdk>${maven.compiler.target}</targetJdk>
-          <aggregate>true</aggregate>
         </configuration>
+        <reportSets>
+          <reportSet>
+            <reports>
+              <report>pmd</report>
+            </reports>
+          </reportSet>
+        </reportSets>
       </plugin>
       <plugin>
         <groupId>com.github.siom79.japicmp</groupId>