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javastrutsstruts-1

Pagination in Struts 1.2.9 in Java EE

I tried pagination in Struts in Objectweb Lomboz eclipse version 3.3. But I got a "no class found" error.

The errors are
exception 

javax.servlet.ServletException: org/apache/commons/lang/UnhandledException
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:272)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause 

java.lang.NoClassDefFoundError: org/apache/commons/lang/UnhandledException
    java.lang.Class.getDeclaredConstructors0(Native Method)
    java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
    java.lang.Class.getConstructor0(Unknown Source)
    java.lang.Class.newInstance0(Unknown Source)
    java.lang.Class.newInstance(Unknown Source)
    java.beans.Introspector.instantiate(Unknown Source)
    java.beans.Introspector.findExplicitBeanInfo(Unknown Source)
    java.beans.Introspector.<init>(Unknown Source)
    java.beans.Introspector.getBeanInfo(Unknown Source)
    org.apache.jasper.compiler.Generator$TagHandlerInfo.<init>(Generator.java:3728)
    org.apache.jasper.compiler.Generator$GenerateVisitor.getTagHandlerInfo(Generator.java:2130)
    org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1599)
    org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
    org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
    org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
    org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
    org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
    org.apache.jasper.compiler.Generator.generate(Generator.java:3320)
    org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

I don't know what is wrong with the code. I copied it from viralpatel.net. I've got a feeling that this code is only applicable for struts 2. So, if you have any pagination program for struts 1.2.9, please provide this in an answer.

Solution

  • Please, check the root cause of the error. It clearly states:

    java.lang.NoClassDefFoundError: org/apache/commons/lang/UnhandledException

    Which means that the class UnhandledException (from org.apache.commons.lang package) is not found (anywhere in your classpath).

    Download the latest Apache Commons library from Apache Commons and put the jar inside your project's WEB-INF/lib directory or declare the path in the classpath.