recieving this exception for iText

[ash chowdary]

hi all,
am trying to display a pdf by adding few values to PDFForm. but am recieving this error.

java.lang.NoClassDefFoundError: com.itextpdf.text.pdf.PdfReader
at simplePDF.doPost(simplePDF.java)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3129)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:238)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)


i've added all required jars. can any one help on this???

 try {
            PdfReader reader = new PdfReader("D:\\Ash\\Eclipse_Express\\claim_form.pdf");

             ByteArrayOutputStream baos = new ByteArrayOutputStream();
             PdfStamper stamper = new PdfStamper(reader, baos);
            
            AcroFields form = stamper.getAcroFields();
            form.setField("City", "Vizag");
            form.setField("State", "AP");

            stamper.close();
            
            servletResponse.setHeader("Expires", "0");
            servletResponse.setHeader("Cache-Control",
                                       "must-revalidate, post-check=0, pre-check=0");
            servletResponse.setHeader("Pragma", "public");
            servletResponse.setContentType("application/pdf");
            servletResponse.setContentLength(baos.size());
            ServletOutputStream out = servletResponse.getOutputStream();
            baos.writeTo(out);
            out.flush();
    
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        } 

[Paul Sturrock]

Do the Jars you have added contain the class com.itextpdf.text.pdf.PdfReader?

[ash chowdary]

yes...when i run it in as stand alone java program its executing. but giving exception when am trying it in web application.

[James Sabre]

ash chowdary wrote:
i've added all required jars. can any one help on this???

Where and how have you added the jars? They need to be in the WEB-INF/lib directory in your war file.

[Deepakkumar Devarajan]

ash chowdary wrote:yes...when i run it in as stand alone java program its executing. but giving exception when am trying it in web application.

I guess you added all Jar files to class path so wen you execute the file using command prompt it executes successfully.

I think you have not added the jar files to the Project Library so when you excute it as a web app, it throws error. If you are using eclipse Right clcik on the project, Select Properties,Select Java Build Path, Select Libaray Tab and then add all the required libraries.

[ash chowdary]

thanks...resolved.

previously, i didn't add libraries in lib folder. i just added them in class path. when i added them in lib, now am able to see the pdf opened. but what am doing is , am trying to pre fill values in pdf.

 PdfReader reader = new PdfReader("D:\\Ash\\Eclipse_Express\\claim_form.pdf");
    	
    	             ByteArrayOutputStream baos = new ByteArrayOutputStream();
    	             PdfStamper stamper = new PdfStamper(reader, baos);
    	            
    	            AcroFields form = stamper.getAcroFields();
    	            form.setField("City", "Vizag");
    	            form.setField("State", "AP");
    	
    	            stamper.close();
    	            
    	            servletResponse.setHeader("Expires", "0");
    	            servletResponse.setHeader("Cache-Control",
    	                                       "must-revalidate, post-check=0, pre-check=0");
    	            servletResponse.setHeader("Pragma", "public");
    	            servletResponse.setContentType("application/pdf");
    	            servletResponse.setContentLength(baos.size());
    	            ServletOutputStream out = servletResponse.getOutputStream();
    	            baos.writeTo(out);
    	            out.flush();

but, its not displaying the content which i added for city and state.