hapi - This element neither has attached source nor attached Javadoc and hence no Javadoc could be found

Question

I'm building a webApp in Eclipse using JSF

I recently download the hapi api from the hapi page, and downloaded the 1.2V and added the jars to my lib folder in my project. and started trying to follow th example in their examples page but then I import import ca.uhn.hl7v2.parser.GenericParser; for example, I get a message saying

This element neither has attached source nor attached Javadoc and hence no Javadoc could be found

.

what does that mean? did I not add the jars correctly? what do I do?

EDIT:

my java class looks like this:

package com.bravo.patient;

import ca.uhn.hl7v2.parser.GenericParser;
import ca.uhn.hl7v2.HL7Exception;
import ca.uhn.hl7v2.app.Application;
import ca.uhn.hl7v2.app.Connection;
import ca.uhn.hl7v2.app.ConnectionHub;
import ca.uhn.hl7v2.app.Initiator;
import ca.uhn.hl7v2.app.SimpleServer;
import ca.uhn.hl7v2.llp.LLPException;
import ca.uhn.hl7v2.llp.LowerLayerProtocol;
import ca.uhn.hl7v2.llp.MinLowerLayerProtocol;
import ca.uhn.hl7v2.model.Message;
import ca.uhn.hl7v2.parser.EncodingNotSupportedException;
import ca.uhn.hl7v2.parser.Parser;
import ca.uhn.hl7v2.parser.PipeParser;

import com.bravo.SecuredPage;
import org.apache.commons.io.IOUtils;
import org.apache.log4j.Logger;
import java.io.InputStream;
import org.apache.myfaces.custom.fileupload.UploadedFile;




public class HL7Test extends SecuredPage{

static final Logger logger = Logger.getLogger(HL7Test.class);

private UploadedFile uploadedFile;
private String today = "";

public HL7Test(){
    initialize();
    secure();       
}

private void secure(){
    /** Assign the required permission elements to the any pages using this Backing Bean **/ 
    registerSecurePageId("patient");
    registerSecurePageAction("");
    registerSecurePageComponent("");
}

public void initialize(){       

}

public UploadedFile getUploadedFile(){
    return this.uploadedFile;
}

public void setUploadedFile(UploadedFile uploadedFile){
    this.uploadedFile = uploadedFile;
}

/**********************
ACTIONS
**********************/

public String actionTest(){
    try{

        String message = "n";
        InputStream is = uploadedFile.getInputStream();         
        message = IOUtils.toString(is, "UTF-8");              

        Parser p = new GenericParser();
        Message adt = p.parse(message);

    }catch (Exception e) {
        e.printStackTrace();
    }
    return "";
}

public String getToday(){
    return this.today;
}

public void setToday(String today){
    this.today = today;
}

}

I'm testing this page. I upload a hl7 message and try to parse it but as soon as I reach the parse, I get an error. as I try to debug it. it give me this error

SEVERE: java.lang.NoClassDefFoundError: org/apache/xerces/xni/parser/XMLParserConfiguration javax.faces.el.EvaluationException: java.lang.NoClassDefFoundError: org/apache/xerces/xni/parser/XMLParserConfiguration

Answer 1

You want to see the documentation (javadoc) for an item. That item

1) comes from a jar file which 2) does not have a preprocessed jar file containing the javadoc html pages attached to that jar, and which does not have 3) a source zip attached to that jar (so Eclipse can generate the javadoc itself).

This is not an error. Your code will most likely run just fine. To fix it, rightclick the jar containing the item and attach either a javadoc zip file or the source zip.

Answer 2

It means that the jar you downloaded didn't contain javadoc. I don't know which version of Hapi you're using, but here's a link to the Maven repo with other Hapi jars and some of them contain the javadoc - Hapi.