sonar.host.url not working with sonar-maven-plugin:2.7
We are investigating the issue. Ticket was created: https://jira.sonarsource.com/browse/MSONAR-129
In the meantime you could either lock the SQ plugin to version 2.6 or pass all properties using command line.
Workaround: Adding -Dsonar.host.url=http://my.server:9000 to mvn command works for me
Better than disabling the plugin, you may fix the plugin version to 2.6, which works fine, taking into account sonar.host.url.
For instance, with Maven in my case:
<pluginManagement>
</plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.6</version>
<!-- sonar.host.url not working with version 2.7 -->
</plugin>
</plugins>
</pluginManagement>