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Primefaces generating java.lang.NoClassDefFoundError: com/lowagie/text/Document on call method to generate PDF for fileDownload

I need your help in solving the issue of not finding the class com/lowagie/text/Document in iText jar. The Primefaces version is 5.0 and the iText version is 2.1.7. The error is generated when I am adding the method name in the actionListner for calling it in order to generate a PDF file from a method and to make it downloadable on the click of a commandButton.

I trued removing all the JARs and adding them one by one and still the issue is the same. All the JARs are unique and I am using Jdeveloper.

The Bean code is:

public void createPdf1() {
    com.lowagie.text.Document doc = new com.lowagie.text.Document(PageSize.A4, 50, 50, 50, 50);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteArrayInputStream in ;
    try {

        PdfWriter writer;

        writer = PdfWriter.getInstance(doc, out);

        doc.open();
        PdfPTable table = new PdfPTable(1);
        PdfPCell cell = new PdfPCell(new Phrase("First PDF"));
        cell.setBorder(Rectangle.NO_BORDER);
        cell.setRunDirection(PdfWriter.RUN_DIRECTION_LTR);
        table.addCell(cell);
        doc.add(table);
        in = new ByteArrayInputStream(out.toByteArray());
        file = new DefaultStreamedContent(in, "application/pdf", "xxx.pdf");
        System.out.println("INSIDE");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

And the jsf code is which I followed the showcase:

<p:commandButton value="Download" ajax="false" onclick="PrimeFaces.monitorDownload(start, stop);" icon="ui-icon-arrowthick-1-s" actionListner="#{pdf.createPdf1}">
    <p:fileDownload value="#{pdf.file}" />
</p:commandButton>

On the click of the commandButton, I am getting the error:

javax.faces.el.EvaluationException: java.lang.NoClassDefFoundError: com/lowagie/text/Document at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:787) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1252) at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._invokeApplication(LifecycleImpl.java:973) at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:354) at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:202) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:508) Caused By: java.lang.ClassNotFoundException: com.lowagie.text.Document at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297) at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270) at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:64) at java.lang.ClassLoader.loadClass(ClassLoader.java:305) at java.lang.ClassLoader.loadClass(ClassLoader.java:246) at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179) at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass(ChangeAwareClassLoader.java:43)

Solution

  • The iText WAR file is kept under the /lib folder and it has worked fine. The compatible version is iText 2.1.7 please refer to the Dependencies in the guide.