title: Error when starting eclipse on Ubuntu 14.04 lts (through virtualbox)
body: <p>Whenever I start Eclipse through the terminal (~/eclipse/eclipse) I got this error:</p>
  
  <pre><code>java.lang.ClassCastException: org.eclipse.osgi.internal.framework.EquinoxConfiguration$1 cannot be cast to java.lang.String
  at org.eclipse.m2e.logback.configuration.LogHelper.logJavaProperties(LogHelper.java:26)
  at org.eclipse.m2e.logback.configuration.LogPlugin.loadConfiguration(LogPlugin.java:189)
  at org.eclipse.m2e.logback.configuration.LogPlugin.configureLogback(LogPlugin.java:144)
  at org.eclipse.m2e.logback.configuration.LogPlugin.access$2(LogPlugin.java:107)
  at org.eclipse.m2e.logback.configuration.LogPlugin$1.run(LogPlugin.java:62)
  at java.util.TimerThread.mainLoop(Timer.java:555)
  at java.util.TimerThread.run(Timer.java:505)
  </code></pre>
  
  <p>Eclipse opens anyway and seems to work fine, but this error keeps bothering me.</p>