title: XMind Excute Error on Ubuntu 18.04
body: <p>i installed XMind 7.5 on Ubuntu18.04.
  (sudo dpkg -i xmind-kr-7.5-linux_amd64.deb)
  but, when i excuted the XMind, it can not do.</p>
  
  <p>i don't know why it isn't excuted.
  would you guys help me?</p>
  
  <blockquote>
    <p>XMind
    WARNING: An illegal reflective access operation has occurred
    WARNING: Illegal reflective access by org.eclipse.osgi.storage.FrameworkExtensionInstaller (file:/usr/lib/xmind/plugins/org.eclipse.osgi_3.10.101.v20150820-1432.jar) to method java.net.URLClassLoader.addURL(java.net.URL)
    WARNING: Please consider reporting this to the maintainers of org.eclipse.osgi.storage.FrameworkExtensionInstaller
    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
    Gtk-Message: 14:18:15.092: GtkDialog mapped without a transient parent. This is discouraged.</p>
    
    <p>java --version
    openjdk 10.0.1 2018-04-17
    OpenJDK Runtime Environment (build 10.0.1+10-Ubuntu-3ubuntu1)
    OpenJDK 64-Bit Server VM (build 10.0.1+10-Ubuntu-3ubuntu1, mixed mode)</p>
  </blockquote>