title: NoClassDefFoundError while accessing GraphicsEnvironment.getLocalGraphicsEnvironment on Tomcat
body: <p>I have an application which is running on tomcat, one of the methods is, creating a simple thumbnail from an jpeg image. The functions works fine offline and a week ago also on tomcat. But now i get the following error:</p>
  
  <pre><code>java.lang.NoClassDefFoundError
  java.lang.Class.forName0(Native Method)
  java.lang.Class.forName(Class.java:164)
  java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
  java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1141)
  eval.impl.ImageEval.getThumbnail(ImageEval.java:155)
  eval.impl.ImageServlet.doGet(ImageServlet.java:79)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
  </code></pre>
  
  <p>I don't think that i have change anything what should influence this (actually i didn't change the function at all according to the svn repository), so it must be a library problem. But i can't figure out what is missing. 
  Here are the actual lines from the getThumbnail function, where the error occures:</p>
  
  <pre><code>        BufferedImage thumbImage = new BufferedImage(thumbWidth, 
              thumbHeight, BufferedImage.TYPE_INT_RGB);
      Graphics2D graphics2D = thumbImage.createGraphics();
      graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
              RenderingHints.VALUE_INTERPOLATION_BILINEAR);
      graphics2D.drawImage(simage, 0, 0, thumbWidth, thumbHeight, null);
  </code></pre>
  
  <p>[edit] I decided to update the problem description a little. 
  Yes it seems that he can not find some class from java.awt or one related to that. But they do exist on the server in the jvm. Java headless mode doesn't solve the problem. 
  In another project the exact same code, but inside an axis2 webservice on this server is working fine.
  [/edit]</p>