Nancy, 1) To run in headless mode, you do need to modify tomcat.sh, as this is what starts the Java Virtual Machine that Tomcat runs under. I can't tell you exactly what to modify as I'm only familiar with Tomcat 4, but if its anything like the v4 script, you should see a number of other -D options being added to the java command. Put the headless bit in in the same way.
2) If you run in headless mode, you can forget all about X Windows, VFB etc, which is a good thing in my opinion! Andy > -----Original Message----- > From: Nancy Crisostomo Martinez [mailto:[EMAIL PROTECTED]] > Sent: 14 March 2002 17:36 > To: Tomcat Users List > Subject: Re: Charts in Jsp doesn't work > > > Thaks to all of you!! > I'm beginning to understand! > > But Andy, > In order to run the j2sdk1.4 in headless mode, do I need to > modify the tomcat.sh > file? > AND If I have the j2sdk1.4 installed and run it in headless > mode, do I need to > get and install the VFB too? or not? > > > Thank you again! > Nancy > > > > > Andy Eastham wrote: > > > Nancy, > > > > You either need X windows or (if your server has no graphics card): > > > > 1) Use j2se1.4 and run it in "headless" mode - the JAva VM needs to be > > started with the > > -Djava.awt.headless=true option in the Tomcat startup scripts. > > > > 2) Get the virtual frame buffer (VFB) version of X windows and > run that. (I > > know we did this at my previous company but I'm afraid I can't > remember how > > to set it up). Try typing "xwindows virtual frame buffer" into your > > favourite search engine. > > > > Andy > > > > > -----Original Message----- > > > From: Nancy Crisostomo Martinez [mailto:[EMAIL PROTECTED]] > > > Sent: 14 March 2002 16:48 > > > To: Tomcat Users List > > > Subject: Charts in Jsp doesn't work > > > > > > > > > Hi Everybody! > > > > > > Do you know what is X Windows System for? > > > Do I need to install it to work with charts?.. I mean, I couldn't see > > > the charts displayed and someone told me that I need to > install X Window > > > System... Is that true? > > > The jsp wich displays a chart are placed in a Solaris Sparc server > > > running on Tomcat 3.3, but I want to see the charts in a > Windows PC and > > > I couldn't because the following message appears: > > > > > > > > > Error: 500 > > > Location: /consultas/jspGrafico.jsp > > > Internal Servlet Error: > > > java.lang.NoClassDefFoundError > > > at java.lang.Class.forName0(Native Method) > > > at java.lang.Class.forName(Class.java:120) > > > at > > > java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsE > > > nvironment.java:58) > > > > > > at java.awt.Font.initializeFont(Font.java:264) > > > at java.awt.Font.(Font.java:298) > > > at oracle.charts.Chart.(Chart.java:224) > > > at oracle.charts.legend.Legend.(Legend.java:159) > > > at oracle.charts.axischart.AxisChart.(AxisChart.java:522) > > > at jspGrafico_4.generateChart(jspGrafico_4.java:109) > > > at jspGrafico_4._jspService(jspGrafico_4.java:353) > > > at > org.apache.jasper.runtime.HttpJspBase.service(Unknown Source) > > > > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java) > > > at org.apache.tomcat.facade.ServletHandler.doService(Unknown > > > Source) > > > at org.apache.tomcat.core.Handler.invoke(Unknown Source) > > > at org.apache.tomcat.core.Handler.service(Unknown Source) > > > at org.apache.tomcat.facade.ServletHandler.service(Unknown > > > Source) > > > at > org.apache.tomcat.core.ContextManager.internalService(Unknown > > > Source) > > > at > org.apache.tomcat.core.ContextManager.service(Unknown Source) > > > > > > at > > > org.apache.tomcat.modules.server.Http10Interceptor.processConnecti > > > on(Unknown > > > Source) > > > at org.apache.tomcat.util.net.TcpWorkerThread.runIt(Unknown > > > Source) > > > at > > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown > > > Source) > > > at java.lang.Thread.run(Thread.java:484) > > > > > > > > > > > > I can't understand.... please, help! > > > > > > Nancy. > > > > > > > > > -- > > > To unsubscribe: <mailto:[EMAIL PROTECTED]> > > > For additional commands: <mailto:[EMAIL PROTECTED]> > > > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > > > > > > > > -- > > To unsubscribe: <mailto:[EMAIL PROTECTED]> > > For additional commands: <mailto:[EMAIL PROTECTED]> > > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > > -- > To unsubscribe: <mailto:[EMAIL PROTECTED]> > For additional commands: <mailto:[EMAIL PROTECTED]> > Troubles with the list: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
