Captcha

Discussion in 'Web Design & Programming' started by djjedi, Jul 1, 2008.

  1. djjedi

    djjedi Geek

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    Hi everybody, im programming on java with redhat 5.0 server and jboss as a webserver.

    I have a this error:

    Code:
    17:54:10,102 ERROR [[Captcha]] Servlet.service() for servlet Captcha threw exception
    
    java.awt.HeadlessException
    
           at sun.java2d.HeadlessGraphicsEnvironment.getDefaultScreenDevice(HeadlessGraphicsEnvironment.java:64)
    
           at ni.com.xolo.captcha.text.imp.DefaultWordRenderer.renderWord(DefaultWordRenderer.java:46)
    
           at ni.com.xolo.captcha.servlet.DefaultCaptchaIml.createImage(DefaultCaptchaIml.java:90)
    
           at ni.com.xolo.captcha.servlet.CaptchaServlet.doGet(CaptchaServlet.java:38)
    
           at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
    
           at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
    
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    
           at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    
           at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
    
           at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    
           at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
    
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
    
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    
           at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
    
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
    
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    
           at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
    
           at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
    
           at java.lang.Thread.run(Thread.java:619)
    when i try to see the page that renders the captcha. do you know something can help me?
     
  2. Sniper

    Sniper Administrator Staff Member

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    I think it would be best to ask at the offical java forums, it was the best place when I needed help with my uni work.
     

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