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Editorial Team
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Asked: 2026-05-31T10:03:04+00:00

I followed the Android restlet tutorial and tried to consume a sample OData webservice

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I followed the Android restlet tutorial and tried to consume a sample OData webservice (http://services.odata.org/OData/OData.svc/). When I create a query with myService.createProductQuery("/Products"); logcat tells me that

ERROR/org.restlet(700): Can’t get the metadata for …

A problem similar to this question. I did try and register the Apache client as suggested by Jerome Louvel:

Engine.getInstance().getRegisteredClients().clear();
Engine.getInstance().getRegisteredClients().add(new HttpClientHelper(null));

Unfortunately I get a new error. On Query initialization I get a NoSuchMethodError exception. The Query class seems to want to call MyService.getMetadatada(). From the docs I see this is a protected method on org.restlet.ext.odata.Service

Happens on version 2.0.11 and 2.1rc3 of Restlet.

Additionally I also tried a home-made .NET 4.0 WCF webservice, with the same results. Any help would be appreciated.

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1 Answer

  1. Editorial Team

    For future readers that come upon this question: just make double sure your Manifest file sets permission on your application to access the internet. (For shame). Obviously it needs access to the network to “call” the webservice.

    ..
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
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