Make it easy to run Sonar on the project (#8118)

compatibility-client-compiled/pom.xml

         <widgetset.name>com.vaadin.v7.Vaadin7WidgetSet</widgetset.name>
         <widgetset.style>OBF</widgetset.style>
         <widgetset.local.workers>6</widgetset.local.workers>
+        <!-- These files are directly from Vaadin 7 -->
+        <sonar.skip>true</sonar.skip>
     </properties>
 
     <url>https://vaadin.com/</url>

compatibility-client/pom.xml

 
     <url>https://vaadin.com/</url>
     <description>Vaadin 7 compatibility package for Vaadin 8</description>
-
+    <properties>
+        <!-- These files are directly from Vaadin 7 -->
+        <sonar.skip>true</sonar.skip>
+    </properties>
     <dependencies>
         <!-- Project modules -->
         <dependency>

compatibility-server/pom.xml

     <url>https://vaadin.com/</url>
     <description>Vaadin 7 compatibility package for Vaadin 8</description>
 
+    <properties>
+        <!-- These files are directly from Vaadin 7 -->
+        <sonar.skip>true</sonar.skip>
+    </properties>
     <dependencies>
         <!-- Project modules -->
         <dependency>

compatibility-shared/pom.xml

     <url>https://vaadin.com/</url>
     <description>Vaadin 7 compatibility package for Vaadin 8</description>
 
+    <properties>
+        <!-- These files are directly from Vaadin 7 -->
+        <sonar.skip>true</sonar.skip>
+    </properties>
+
     <dependencies>
         <!-- Project modules -->
         <dependency>

compatibility-themes/pom.xml

     <url>https://vaadin.com/</url>
     <description>Vaadin compatibility themes</description>
 
+    <properties>
+        <!-- These files are directly from Vaadin 7 -->
+        <sonar.skip>true</sonar.skip>
+    </properties>
+
     <dependencies>
         <!-- Maven plugin scans for vaadin-server... -->
         <dependency>

pom.xml

         
         <jetty.version>9.3.7.v20160115</jetty.version>
         <phantomjs.version>2.1.1</phantomjs.version>
+
+        <!-- Sonar properties -->
+        <sonar.java.source>8</sonar.java.source>
+        <sonar.analysis.mode>preview</sonar.analysis.mode>
+        <sonar.issuesReport.console.enable>true</sonar.issuesReport.console.enable>
+        <sonar.issuesReport.html.enable>true</sonar.issuesReport.html.enable>
     </properties>
 
     <!-- TODO: remove this after maven plugin has been released -->

test/pom.xml

         <phantomjs.version>2.1.1</phantomjs.version>
         <vaadin.version>8.0-SNAPSHOT</vaadin.version>
         <failOnMissingWebXml>false</failOnMissingWebXml>
+        <!-- Don't care about coding style for tests -->
+        <sonar.skip>true</sonar.skip>
+    </properties>
     </properties>
 
     <repositories>

uitest-common/pom.xml

     <packaging>jar</packaging>
     <properties>
         <skip.uitest.deployment>true</skip.uitest.deployment>
+        <!-- Don't care about coding style for tests -->
+        <sonar.skip>true</sonar.skip>
     </properties>
 
     <url>https://vaadin.com/</url>

uitest/pom.xml

     <packaging>war</packaging>
     <properties>
         <skip.uitest.deployment>true</skip.uitest.deployment>
+        <!-- Don't care about coding style for tests -->
+        <sonar.skip>true</sonar.skip>
     </properties>
 
     <url>https://vaadin.com/</url>