the new sonarqube scanner seems to rquire binaries

sonar-project.properties

@@ -5,3 +5,6 @@ sonar.sources=src/main
 sonar.tests=src/tests/junit
 sonar.projectVersion=1.10.0-SNAPSHOT
 sonar.java.source=8
+sonar.java.binaries=build/classes
+sonar.java.test.binaries=build/testcases
+sonar.java.libraries=lib/optional/*.jar

sonarqube.xml

@@ -17,7 +17,13 @@
     <get dest="${sonarqube-ant-task-jar}" src="${sonarqube-ant-task-url}"/>
   </target>
 
-  <target name="sonar" depends="download">
+  <target name="build-classes">
+    <ant antfile="launch-build.xml">
+      <property name="args" value="-Djenkins=t"/>
+    </ant>
+  </target>
+
+  <target name="sonar" depends="download,build-classes">
     <taskdef uri="antlib:org.sonar.ant" resource="org/sonar/ant/antlib.xml">
         <classpath path="${sonarqube-ant-task-jar}" />
     </taskdef>