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Posted to users@tomcat.apache.org by chenjh <ch...@thinker.com.cn> on 2009/06/29 05:48:30 UTC

NoClassDefFoundError

users,

I often get the NoClassDefFoundError from my tomcat 5.5.
I had placed jfreechart.jar and jcommon.jar into [tomcat]/common/lib, but after running for some time, the producing image page fail with NoClassDefFoundError.  I had to restart the tomcat to fix it.

java.lang.NoClassDefFoundError
	at org.jfree.chart.ChartFactory.createPieChart3D(ChartFactory.java:741)
	at org.apache.jsp.manager.charts_jsp._jspService(charts_jsp.java:124)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:595)

Regards

chenjh
2009-06-29



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Re: NoClassDefFoundError

Posted by Christopher Schultz <ch...@christopherschultz.net>.
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chenjh,

On 6/28/2009 11:48 PM, chenjh wrote:
> I often get the NoClassDefFoundError from my tomcat 5.5. I had placed
> jfreechart.jar and jcommon.jar into [tomcat]/common/lib, but after
> running for some time, the producing image page fail with
> NoClassDefFoundError.  I had to restart the tomcat to fix it.

Sounds like you are missing a library required by jfreechart, but it is
only necessary for certain operations. Check JFreeChart's dependencies
for your version, and make sure you have all the JAR files it might need
installed in common/lib.

- -chris
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RE: NoClassDefFoundError

Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: chenjh [mailto:chenjh@thinker.com.cn]
> Subject: NoClassDefFoundError
> 
> I had placed jfreechart.jar and jcommon.jar into [tomcat]/common/lib,
> but after running for some time, the producing image page fail with
> NoClassDefFoundError.

Make sure you do not have other copies of jfreechart.jar or jcommon.jar (or any classes therein) in some other location visible to the webapp classloader - such as WEB-INF/lib or shared/lib.

 - Chuck


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