try sonar module key

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1872478 13f79535-47bb-0310-9956-ffa450edef68

sonar/pom.xml

@@ -74,6 +74,8 @@
 
         <sonar.organization>apache</sonar.organization>
         <sonar.projectKey>poi-parent</sonar.projectKey>
+        <sonar.moduleKey>${artifactId}</sonar.moduleKey>
+
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
         <sonar.jacoco.reportPaths>target/jacoco.exec</sonar.jacoco.reportPaths>
         <sonar.coverage.jacoco.xmlReportPaths>target/site/jacoco/jacoco.xml</sonar.coverage.jacoco.xmlReportPaths>