title: sonarqube failed to start
body: <p>I am currently trying to install sonarqube to try it, but I am unable to make it start.
  My OS is Ubuntu 64 bits.</p>
  <p>What I did :</p>
  <p>First I wanted to try it with all basics settings so I downloaded the last version of sonarqube on their website (5.6). Then I unzipped it and went to the bin/linux-x86-64/ and then I did ./sonar.sh start</p>
  <p>The terminal then said Sonarqube started. However, I can't get access to it on the web interface, and my logfile is fulled with this error.</p>
  <blockquote>
  <p>2016.06.20 15:33:15 ERROR web[o.a.c.c.C.[.[.[/]] Exception sending context initialized event to listener instance of class org.sonar.server.platform.RubyRailsContextListener</p>
  <p>org.jruby.rack.RackInitializationException: java.lang.NullPointerException</p>
  <p>at org.jruby.rack.RackInitializationException.wrap(RackInitializationException.java:31) ~[jruby-rack-1.1.13.2.jar:na]</p>
  </blockquote>
  <p>Full log on <a href="http://pastebin.com/nNmquxGQ" rel="nofollow noreferrer">pastebin</a></p>
  <p>I am searching a lot since this morning to find out how to solve this but I did not find the answer at this time. Have you any idea or solution to solve this ?</p>
  <h3>EDIT :</h3>
  <p>Tried it on my Windows 7 OS =&gt; No problem at all, it works perfectly without editing anything. Maybe something is not installed on my Ubuntu sessions, I do not know. I still did not find the fix at the moment.</p>
  <h3>EDIT 2:</h3>
  <p>I tried ./sonar.sh console (can't edit my first message because it would be too long)</p>
  <pre><code>Running SonarQube...
  wrapper  | --&gt; Wrapper Started as Console
  wrapper  | Launching a JVM...
  jvm 1    | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
  jvm 1    |   Copyright 1999-2006 Tanuki Software, Inc.  All Rights Reserved.
  jvm 1    | 
  jvm 1    | 2016.06.21 08:43:46 INFO  app[o.s.a.AppFileSystem] Cleaning or creating temp directory /home/chris/Téléchargements/sonarqube-5.6/temp
  jvm 1    | 2016.06.21 08:43:46 INFO  app[o.s.p.m.JavaProcessLauncher] Launch process[es]: /usr/lib/jvm/java-8-oracle/jre/bin/java -Djava.awt.headless=true -Xmx1G -Xms256m -Xss256k -Djava.net.preferIPv4Stack=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Djava.io.tmpdir=/home/chris/Téléchargements/sonarqube-5.6/temp -javaagent:/usr/lib/jvm/java-8-oracle/jre/lib/management-agent.jar -cp ./lib/common/*:./lib/search/* org.sonar.search.SearchServer /home/chris/Téléchargements/sonarqube-5.6/temp/sq-process3660637613352616230properties
  jvm 1    | 2016.06.21 08:43:58 INFO  app[o.s.p.m.Monitor] Process[es] is up
  jvm 1    | 2016.06.21 08:43:58 INFO  app[o.s.p.m.JavaProcessLauncher] Launch process[web]: /usr/lib/jvm/java-8-oracle/jre/bin/java -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djruby.management.enabled=false -Djruby.compile.invokedynamic=false -Xmx512m -Xms128m -XX:+HeapDumpOnOutOfMemoryError -Djava.net.preferIPv4Stack=true -Djava.io.tmpdir=/home/chris/Téléchargements/sonarqube-5.6/temp -javaagent:/usr/lib/jvm/java-8-oracle/jre/lib/management-agent.jar -cp ./lib/common/*:./lib/server/*:/home/chris/Téléchargements/sonarqube-5.6/lib/jdbc/h2/h2-1.3.176.jar org.sonar.server.app.WebServer /home/chris/Téléchargements/sonarqube-5.6/temp/sq-process3224593936857414396properties
  jvm 1    | 2016.06.21 08:44:19 INFO  app[o.s.p.m.Monitor] Process[es] is stopping
  jvm 1    | 2016.06.21 08:44:20 INFO  app[o.s.p.m.Monitor] Process[es] is stopped
  wrapper  | &lt;-- Wrapper Stopped
  </code></pre>
  <p>I tested on an other computer running Ubuntu 64 bits, with an other connection : exact same error. I do not know what to do at this point ...</p>