Rrugemalira
asked on
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
I'm using NetBeans 5.5.1 IDE with Visual Web Pack. My OS is Linux Fedora Core 6 and the server is Sun Java System Application Server.
I'm developing an application which includes a JSP to display a bar-chart graph using CeWolf.
I get the following two severe errors on running the JSP:
1. Message ID: StandardWrapperValve[Cewol
Servlet.service() for servlet CewolfServlet threw exception
java.lang.NoClassDefFoundE
at java.lang.Class.forName0(N
2.Message ID: CewolfServlet
Could not initialize class sun.awt.X11GraphicsEnviron
java.lang.NoClassDefFoundE
at java.lang.Class.forName0(N
at java.lang.Class.forName(Cl
at java.awt.GraphicsEnvironme
at sun.awt.X11.XToolkit.<clin
I'd appreciate your kind guidance in solving this problem
I'm developing an application which includes a JSP to display a bar-chart graph using CeWolf.
I get the following two severe errors on running the JSP:
1. Message ID: StandardWrapperValve[Cewol
Servlet.service() for servlet CewolfServlet threw exception
java.lang.NoClassDefFoundE
at java.lang.Class.forName0(N
2.Message ID: CewolfServlet
Could not initialize class sun.awt.X11GraphicsEnviron
java.lang.NoClassDefFoundE
at java.lang.Class.forName0(N
at java.lang.Class.forName(Cl
at java.awt.GraphicsEnvironme
at sun.awt.X11.XToolkit.<clin
I'd appreciate your kind guidance in solving this problem
ASKER
I'm using jdk1.6.0_02
The system monitor shows I have Xorg sleeping but consuming CPU. Moreover, I'm working in graphics mode with the netbeans IDE and I can see some graphics on the JSP pages when my application is running (except for the chart component)
You will forgive my ignorance, but I do now know where to setProperty("java.awt.head
In which code do I set it? In the jsp that renders the chart? In the bean that implements the dataset producer?
The system monitor shows I have Xorg sleeping but consuming CPU. Moreover, I'm working in graphics mode with the netbeans IDE and I can see some graphics on the JSP pages when my application is running (except for the chart component)
You will forgive my ignorance, but I do now know where to setProperty("java.awt.head
In which code do I set it? In the jsp that renders the chart? In the bean that implements the dataset producer?
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SOLUTION
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ASKER
I entered into Sun Java System Application Server Administration Console
Clicked on:
Application Server --> JVM Settings --> JVM Options
and added the JVM option: -Djava.awt.headless=true
Stopped the server and re-started it.
I'm now able to display the bar-chart graphics. Praise be to God!
I thank all of you for your kind help.
Clicked on:
Application Server --> JVM Settings --> JVM Options
and added the JVM option: -Djava.awt.headless=true
Stopped the server and re-started it.
I'm now able to display the bar-chart graphics. Praise be to God!
I thank all of you for your kind help.
The other option would be to use PJA Toolkit (http://www.eteks.com/pja/en/) instead of the standard AWT
Although... which JDK you use? For 1.4.2+, it may be enough to use java.awt.headless=true
setProperty( "java.awt.headless", true ); in the code or as a start parameter.