title: SonarQube Won't Start After Resart (Ubuntu 18.04)
body: <p>I have recently installed SonarQube on my Ubuntu 18.04 server. After the install I was able to successfully start the service and visit the web portal. After a restart, the service would no longer start.</p>
  <h1>Environment</h1>
  <ul>
  <li><p>SonarQube: 6.7.4/7.1 (I've tried both)</p>
  </li>
  <li><p>Java:</p>
  <p>openjdk 9-Ubuntu</p>
  <p>OpenJDK Runtime Environment (build 9-Ubuntu+0-9b181-4)</p>
  <p>OpenJDK 64-Bit Server VM (build 9-Ubuntu+0-9b181-4, mixed mode)</p>
  </li>
  <li><p>PostgreSQL: psql (PostgreSQL) 10.4 (Ubuntu 10.4-0ubuntu0.18.04)</p>
  </li>
  <li><p>Ubuntu: 18.04</p>
  </li>
  </ul>
  <h1>Log File Message</h1>
  <pre><code>--&gt; Wrapper Started as Daemon
  Launching a JVM...
  Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
    Copyright 1999-2006 Tanuki Software, Inc.  All Rights Reserved.
  
  2018.06.12 20:41:05 INFO  app[][o.s.a.AppFileSystem] Cleaning or creating temp directory /opt/sonarqube/temp
  2018.06.12 20:41:06 INFO  app[][o.s.a.es.EsSettings] Elasticsearch listening on /127.0.0.1:9001
  2018.06.12 20:41:06 INFO  app[][o.s.a.p.ProcessLauncherImpl] Launch process[[key='es', ipcIndex=1, logFilenamePrefix=es]] from [/opt/sonarqube/elasticsearch]: /opt/sonarqube/elasticsearch/bin/elasticsearch -Epath.conf=/opt/sonarqube/temp/conf/es
  2018.06.12 20:41:06 INFO  app[][o.s.a.SchedulerImpl] Waiting for Elasticsearch to be up and running
  OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
  2018.06.12 20:41:06 INFO  app[][o.e.p.PluginsService] no modules loaded
  2018.06.12 20:41:06 INFO  app[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.transport.Netty4Plugin]
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by io.netty.util.internal.ReflectionUtil (file:/opt/sonarqube/lib/common/netty-common-4.1.13.Final.jar) to constructor java.nio.DirectByteBuffer(long,int)
  WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.ReflectionUtil
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
  WARNING: All illegal access operations will be denied in a future release
  #
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  SIGILL (0x4) at pc=0x00007ff47b6639df, pid=5467, tid=5514
  #
  # JRE version: OpenJDK Runtime Environment (9.0) (build 9-Ubuntu+0-9b181-4)
  # Java VM: OpenJDK 64-Bit Server VM (9-Ubuntu+0-9b181-4, mixed mode, tiered, compressed oops, concurrent mark sweep gc, linux-amd64)
  # Problematic frame:
  # J 3314 c2 com.fasterxml.jackson.core.sym.ByteQuadsCanonicalizer.calcHash([II)I (115 bytes) @ 0x00007ff47b6639df [0x00007ff47b6638a0+0x000000000000013f]
  #
  # Core dump will be written. Default location: Core dumps may be processed with &quot;/usr/share/apport/apport %p %s %c %d %P&quot; (or dumping to /opt/sonarqube/elasticsearch/core.5467)
  #
  # An error report file with more information is saved as:
  # /opt/sonarqube/elasticsearch/hs_err_pid5467.log
  Compiled method (c2)    8169 3314       4       com.fasterxml.jackson.core.sym.ByteQuadsCanonicalizer::calcHash (115 bytes)
   total in heap  [0x00007ff47b663710,0x00007ff47b663c20] = 1296
   relocation     [0x00007ff47b663880,0x00007ff47b6638a0] = 32
   main code      [0x00007ff47b6638a0,0x00007ff47b663b20] = 640
   stub code      [0x00007ff47b663b20,0x00007ff47b663b38] = 24
   oops           [0x00007ff47b663b38,0x00007ff47b663b40] = 8
   metadata       [0x00007ff47b663b40,0x00007ff47b663b48] = 8
   scopes data    [0x00007ff47b663b48,0x00007ff47b663ba8] = 96
   scopes pcs     [0x00007ff47b663ba8,0x00007ff47b663c08] = 96
   dependencies   [0x00007ff47b663c08,0x00007ff47b663c10] = 8
   nul chk table  [0x00007ff47b663c10,0x00007ff47b663c20] = 16
  Could not load hsdis-amd64.so; library not loadable; PrintAssembly is disabled
  #
  # If you would like to submit a bug report, please visit:
  #   http://bugreport.java.com/bugreport/crash.jsp
  #
  2018.06.12 20:41:15 WARN  app[][o.s.a.p.AbstractProcessMonitor] Process exited with exit value [es]: 134
  2018.06.12 20:41:15 INFO  app[][o.s.a.SchedulerImpl] Process [es] is stopped
  2018.06.12 20:41:15 INFO  app[][o.s.a.SchedulerImpl] SonarQube is stopped
  &lt;-- Wrapper Stopped
  </code></pre>
  <p>Update: Corrected the Ubuntu version number in title.</p>