Looks like you are lacking the google collections jar. Add the two
jars found in the "deps" folder of the java gdata client library to
your classpath and you should be good to go. Speaking of which, I
wonder when the GData Eclipse plugin will be updated to reflect this
requirement.
-Steve Ziegler
On Nov 14, 4:15 pm, seagull1 <davidsei...@gmail.com> wrote:
> Hello,
>
> I am trying to use the Picasa web album API
>
> I added the following JAR files from gdata into the /war/lib/ folder:
> gdata-client-1.0.jar
> gdata-client-meta-1.0.jar
> gdata-core-1.0.jar
> gdata-media-1.0.jar
> gdata-photos-2.0.jar
> gdata-photos-meta-2.0.jar
>
> I have added these to the build path, at which point they disappeared
> from the /war/lib/ folder in eclipse.
>
> The class I am trying to run (just to test and see if it works is)
>
> public class TestServlet extends HttpServlet {
> public void doGet(HttpServletRequest req, HttpServletResponse resp)
> throws IOException {
> try {
> PicasawebService myService = new
> PicasawebService("test"); //this
> is line 15
> }
> catch(Exception ex) {
> System.err.println("EXCEPTION: " + ex.getMessage());
> }
> }
>
> }
>
> When I run this class several things happen:
>
> 1) First time Run
>
> WARNING: Error for /test
> 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:532)
> at test.TestServlet.doGet(TestServlet.java:15)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> 487)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1093)
> at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
> (TransactionCleanupFilter.java:43)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at com.google.appengine.tools.development.StaticFileFilter.doFilter
> (StaticFileFilter.java:121)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at org.mortbay.jetty.servlet.ServletHandler.handle
> (ServletHandler.java:360)
> at org.mortbay.jetty.security.SecurityHandler.handle
> (SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle
> (SessionHandler.java:181)
> at org.mortbay.jetty.handler.ContextHandler.handle
> (ContextHandler.java:712)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> 405)
> at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
> (DevAppEngineWebAppContext.java:54)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at com.google.appengine.tools.development.JettyContainerService
> $ApiProxyHandler.handle(JettyContainerService.java:342)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at org.mortbay.jetty.Server.handle(Server.java:313)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> 506)
> at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
> (HttpConnection.java:830)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
> at org.mortbay.io.nio.SelectChannelEndPoint.run
> (SelectChannelEndPoint.java:396)
> at org.mortbay.thread.BoundedThreadPool$PoolThread.run
> (BoundedThreadPool.java:442)
>
> If I then reload the page...
>
> HTTP ERROR: 500
>
> INTERNAL_SERVER_ERROR
>
> RequestURI=/test
> Caused by:
>
> java.lang.NoClassDefFoundError
> at cate.CateServlet.doGet(TestServlet.java:14)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> 487)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1093)
> at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
> (TransactionCleanupFilter.java:43)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at com.google.appengine.tools.development.StaticFileFilter.doFilter
> (StaticFileFilter.java:121)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at org.mortbay.jetty.servlet.ServletHandler.handle
> (ServletHandler.java:360)
> at org.mortbay.jetty.security.SecurityHandler.handle
> (SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle
> (SessionHandler.java:181)
> at org.mortbay.jetty.handler.ContextHandler.handle
> (ContextHandler.java:712)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> 405)
> at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
> (DevAppEngineWebAppContext.java:54)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at com.google.appengine.tools.development.JettyContainerService
> $ApiProxyHandler.handle(JettyContainerService.java:342)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at org.mortbay.jetty.Server.handle(Server.java:313)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> 506)
> at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
> (HttpConnection.java:830)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
> at org.mortbay.io.nio.SelectChannelEndPoint.run
> (SelectChannelEndPoint.java:396)
> at org.mortbay.thread.BoundedThreadPool$PoolThread.run
> (BoundedThreadPool.java:442)
>
> Any help would be greatly appreciated.
>
> Thank you!
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