java.lang.NoClassDefFoundError
Hello, I posted here because my Java experience is not so good and I believe this is a simple configuration problem.
I'm using:
Ubuntu edgy
Linux kernel 2.6.17-11
Tomcat 6.0.10
Java 1.5
Eclipse 3.2.2
Ant 1.6.5
(other Java applications run without any problem)
I'm trying to run an application I did about 2 years ago. Inside Eclipse it builds without any error (some warnings). Also I run "ant" and complies without errors, just 1 warning about "uses unchecked or unsafe operations".
The error is:
ERROR [http-80-1] (BaseJSP.java:33) - JSP onload error: javax.servlet.ServletException: java.lang.NoClassDefFoundError
javax.servlet.ServletException: java.lang.NoClassDefFoundError
at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:855)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:784)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:287)
at com.alepe.core.BaseJSP.onLoad(BaseJSP.java:31)
at com.alepe.core.BasePage.doGet(BasePage.java:33)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Thread.java:595)
Basically the error comes from this line:
@Override
publicfinalvoid onLoad(){
try{
this >_jspService(request,response);
}catch(Exception e){
...
}
}
But my question is why "NoClassDefFoundError" happens if there is no error when building it in Eclipse (or ant)?
Thank you.
