Re: [jfreechart-dev] error when accessing JFreeChart Servlet...

[Padhu V. <p....@ve...>]

Thanks. I have set this variable to CATALINE_OPTS as the pdf doc says. 
Only thing is that I am using a 1.3 VM. I also set DISPLAY to 
"localhost:0.0". Doesnt seem to help.

-- padhu



Brian Macy wrote:

> If you are running JVM 1.4.x:
>   "-Djava.awt.headless=true"
>   Add to your execution of your Java VM
> Else:
>   Look at the PJA project
>   or
>   Find a headless X Server
>
> For some reason Sun's AWT implementation uses native X11 calls to do 
> it's work. In 1.4 they have a headless mode that avoids this.
>
> Brian Macy
>
> Padhu Vinirs wrote:
>
>>
>>>
>>> Tomcat 4.1.12 on Linux. I am accessing from a Win98 client.
>>>
>>> I am trying to access the JFreeChartServlet example1.html. I get the 
>>> following exception ( root cause ): ( X is running on the Linux - 
>>> gnome is the window manager ).
>>>
>>> java.lang.InternalError: Can't connect to X11 window server using 
>>> ':0.0' as the value of the DISPLAY variable.
>>>     at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
>>>     at sun.awt.X11GraphicsEnvironment.(X11GraphicsEnvironment.java:58)
>>>     at java.lang.Class.forName0(Native Method)
>>>     at java.lang.Class.forName(Class.java:120)
>>>     at 
>>> java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:58) 
>>>
>>>     at java.awt.Font.initializeFont(Font.java:264)
>>>     at java.awt.Font.(Font.java:298)
>>>     at com.jrefinery.chart.AxisConstants.(Unknown Source)
>>>     at com.jrefinery.chart.HorizontalCategoryAxis.(Unknown Source)
>>>     at 
>>> com.jrefinery.chart.ChartFactory.createVerticalBarChart(Unknown Source)
>>>     at 
>>> com.jrefinery.chart.demo.JFreeChartServletDemo.createChart(Unknown 
>>> Source)
>>>     at com.jrefinery.chart.demo.JFreeChartServletDemo.doGet(Unknown 
>>> Source)
>>>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
>>>
>>>
>>>
>>> I dont understand why DISPLAY variable needs to be set. Any 
>>> suggestions on what DISPLAY should be set., ( localhost:0.0 ??? )
>>>
>>>
>>> Thanks
>>>
>>> -- padhu
>>>
>>>
>>>
>>
>>
>>
>>
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