[google-appengine] Error Message while trying this code

[nikhil bharadwaj]

Hello All,

I was trying some code using the Google Data Plugin on Eclipse, it would be
great if someone would throw some light on it.
*
Error:*

Exception in thread "main" java.lang.NoClassDefFoundError:
com/google/common/collect/Maps
    at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:118)
    at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:100)
    at com.google.gdata.client.Service.<clinit>(Service.java:513)
    at Documents.main(Documents.java:36)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 4 more


Code:


import com.google.gdata.client.docs.DocsService;
import com.google.gdata.data.docs.DocumentListEntry;
import com.google.gdata.data.docs.DocumentListFeed;
import com.google.gdata.util.AuthenticationException;
import com.google.gdata.util.ServiceException;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;

/**
 * This is a test template
 */

  public class Documents {

    public static void main(String[] args) {

      try {

        // Create a new Documents service
        DocsService myService = new DocsService("My Application");
        myService.setUserCredentials(args[0],args[1]);

        // Get a list of all entries
        URL metafeedUrl = new URL("
http://docs.google.com/feeds/documents/private/full";);
        System.out.println("Getting Documents entries...\n");
        DocumentListFeed resultFeed = myService.getFeed(metafeedUrl,
DocumentListFeed.class);
        List<DocumentListEntry> entries = resultFeed.getEntries();
        for(int i=0; i<entries.size(); i++) {
          DocumentListEntry entry = entries.get(i);
          System.out.println("\t" + entry.getTitle().getPlainText());
        }
        System.out.println("\nTotal Entries: "+entries.size());
      }
      catch(AuthenticationException e) {
        e.printStackTrace();
      }
      catch(MalformedURLException e) {
        e.printStackTrace();
      }
      catch(ServiceException e) {
        e.printStackTrace();
      }
      catch(IOException e) {
        e.printStackTrace();
      }
    }
  }


-- 
Thanks and Regards,

Nikhil B. Bharadwaj

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