title: java.lang.NoClassDefFoundError: java.awt.Container while trying to install Visual Paradigm
body: <p>I'm trying to run Visual Paradigm Community Edition installer and I am getting this error in terminal - GUI installer never shows up (Ubuntu 14.04 64bit, Oracle Java 8):</p>
  
  <pre><code>java.lang.NoClassDefFoundError: java.awt.Container
      at com.install4j.runtime.installer.frontend.headless.AbstractHeadlessScreenExecutor.init(Unknown Source)
      at com.install4j.runtime.installer.frontend.headless.ConsoleScreenExecutor.&lt;init&gt;(Unknown Source)
      at com.install4j.runtime.installer.frontend.headless.InstallerConsoleScreenExecutor.&lt;init&gt;(Unknown Source)
      at com.install4j.runtime.installer.Installer.getScreenExecutor(Unknown Source)
      at com.install4j.runtime.installer.Installer.runInProcess(Unknown Source)
      at com.install4j.runtime.installer.Installer.main(Unknown Source)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
      at com.install4j.runtime.launcher.Launcher.main(Unknown Source)
  Could not display the GUI. This application needs access to an X Server.
  </code></pre>
  
  <p>`java -version returns:</p>
  
  <pre><code>java version "1.8.0_05"
  Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
  Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
  </code></pre>
  
  <p>Is this a problem with my JRE? I have installed Visual Paradigm before on Java 7 and didn't have this issue.</p>