You can see the code that outputs that error in the the travers method of: https://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/impl/DirectoryContributionScanner.java
Reading the comments it sounds like thats expected and it continues on so you don't need to worry about it. (might be clearer if the log was a warning level instead of a serve) ...ant On Thu, Sep 16, 2010 at 2:40 PM, Florian MOGA <[email protected]> wrote: > I can also see the following error in the App Engine logs (has no stack > trace): > org.apache.tuscany.sca.contribution.scanner.impl.DirectoryContributionScanner > traverse: Error traversing > file:/base/data/home/apps/tuscany-comet/1.344843798013946161/_ah > > Does this look familiar or giving you a hint? > > On Wed, Sep 8, 2010 at 12:24 AM, Florian MOGA <[email protected]> wrote: >> >> Right, but the Channel API won't enable me to illustrate the comet >> abilities we have in Tuscany so I'm trying to avoid it for the moment... >> From what I've found on the internet, both Atmosphere and Jersey have made >> efforts in the past to work with GAE so it might be a good thing asking >> their opinion on these errors. I'll keep you posted on the updates. >> >> On Wed, Sep 8, 2010 at 12:11 AM, Luciano Resende <[email protected]> >> wrote: >>> >>> On Tue, Sep 7, 2010 at 1:17 PM, Florian MOGA <[email protected]> wrote: >>> > It seems like Eclipse wasn't using latest snapshots from the local repo >>> > for >>> > the deployment... Had more time to look on it today and managed to >>> > deploy it >>> > succesfully. However, I encountered some restrictions on working with >>> > the >>> > session but solved it quickly with an xml config in appengine-web.xml. >>> > From what I can see, the app [0] seems to move very very slow and >>> > because of >>> > that some NullPointerExceptions are being thrown as things don't get >>> > properly initialized. I'll try and debug this further as it would be >>> > really >>> > nice having a proof of concept in the cloud. >>> > Florian >>> > >>> > [0] http://tuscany-comet.appspot.com/ >>> > >>> > >>> >>> It seems that we are passed the Tuscany issues deploying the app, but >>> does the library you are using and the functionality works in >>> AppEngine ? I have seen couple of blog posts which describes issues >>> related to long lived http connections and some limitations from GAE. >>> Also, it seems that they have enabled some services to make similar >>> functionality available [1] [2] >>> >>> Quote: " Channel API - The Channel API lets you build applications >>> that can push content directly to your user’s browser (aka “Comet”). >>> No more polling for updates! " >>> >>> [1] >>> http://stackoverflow.com/questions/1285150/server-push-comet-in-google-app-engine-in-python >>> [2] >>> http://googleappengine.blogspot.com/2010/05/app-engine-at-google-io-2010.html >>> >>> >>> >>> -- >>> Luciano Resende >>> http://people.apache.org/~lresende >>> http://twitter.com/lresende1975 >>> http://lresende.blogspot.com/ >> > >
