tomcat4 java.lang.NoClassDefFoundError

[holly9]

Can anyone help?
I have Tomcat4 that I can only access through Plesk. I have uploaded a war file with the jsp pages and javabean to send email from a webform. However I get a java.lang.NoClassDefFoundError.
I think that something needs to be changed in the server conf files. Any ideas?

 

[wagnerch]

You might want to dump the whole stack trace. It is likely that your application is dependent on a library that was not rolled into your WAR file, or the assumption is the server environment will provide it.

 

[holly9]

Here is the stack trace. It took me a while to get it.

java.lang.NoClassDefFoundError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:308)
at java.lang.Class.newInstance(Class.java:261)
at java.beans.Beans.instantiate(Beans.java:204)
at java.beans.Beans.instantiate(Beans.java:48)
at org.apache.jsp.mailer_jsp._jspService(mailer_jsp.java:97)
at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.jasper.servlet.JspServletWrapper.service(Unknown Source)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(Unknown Source)
at org.apache.jasper.servlet.JspServlet.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.access$0(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.connector.warp.WarpRequestHandler.handle(Unknown Source)
at org.apache.catalina.connector.warp.WarpConnection.run(Unknown Source)
at java.lang.Thread.run(Thread.java:534)

 

[wagnerch]

Usually it pukes out a path com/blah/abc after the NoClassDefFoundError that basically tells you the class it is looking for.

If that is all it gave you then that is going to be a challenging problem. It is likely something really stupid and not obvious.