java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:121)
at java.awt.Window.<init>(Window.java:274)
at java.awt.Frame.<init>(Frame.java:401)
at java.awt.Frame.<init>(Frame.java:366)
at cn.com.s520.process.ValidateImageProcess.doStart(ValidateImageProcess.java:43)
at net.apache.jsp.framework.controller.impl.MainServletProcessImpl.processRequest(MainServletProcessImpl.java:170)
at net.apache.jsp.framework.controller.impl.MainServletProcessImpl.doRequest(MainServletProcessImpl.java:113)
at net.apache.jsp.framework.controller.MainServlet.doGet(MainServlet.java:62)