Use SonarQube.com

Execute Maven with JDK 8, because SonarQube 5.6 requires it.
Our tests are failing with JDK 8, so use JDK 7 for tests execution.

.travis-toolchains.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF8"?>
+<toolchains xmlns="https://maven.apache.org/TOOLCHAINS/1.1.0" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="https://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+ <toolchain>
+ <type>jdk</type>
+ <provides>
+ <id>java7</id>
+ <version>1.7</version>
+ <vendor>oracle</vendor>
+ </provides>
+ <configuration>
+ <jdkHome>/usr/lib/jvm/java-7-oracle</jdkHome>
+ </configuration>
+ </toolchain>
+</toolchains>

.travis.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+
+if [[ ${TRAVIS_PULL_REQUEST} == 'false' && ${TRAVIS_BRANCH} == 'master' ]]
+then
+ mvn -V -B -e \
+ verify -Djdk.version=1.7 --toolchains=./.travis-toolchains.xml \
+ sonar:sonar -Dsonar.host.url=${SONARQUBE_URL} -Dsonar.login=${SONARQUBE_TOKEN}
+else
+ mvn -V -B -e \
+ verify -Djdk.version=1.7 --toolchains=./.travis-toolchains.xml
+fi

.travis.yml

@@ -1,9 +1,10 @@
 language: java
+jdk: oraclejdk8
 
 # Skip "install" stage:
 install: true
 
 # Use container-based infrastructure:
 sudo: false
 
-script: mvn -V -B -e verify
+script: bash .travis.sh

com.mountainminds.eclemma.build/pom.xml

@@ -86,11 +86,8 @@
  <jacoco.version>0.7.7.201606060606</jacoco.version>
  <tycho.testArgLine>-Xmx800m</tycho.testArgLine>
 
- <!-- Sonar -->
- <sonar.skippedModules>com.mountainminds.eclemma.target,com.mountainminds.eclemma.core.test,com.mountainminds.eclemma.doc,com.mountainminds.eclemma.feature,com.mountainminds.eclemma.site</sonar.skippedModules>
-
- <sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>
- <sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
+ <!-- SonarQube -->
+ <sonar.java.source>1.5</sonar.java.source>
  <sonar.jacoco.reportPath>${project.basedir}/../target/jacoco.exec</sonar.jacoco.reportPath>
  <sonar.surefire.reportsPath>../${project.artifactId}.test/target/surefire-reports/</sonar.surefire.reportsPath>
  </properties>