Error in PostPut callbacks

[Arun Nedun]

**Need Help

Need the correct syntax and usage for postput callbacks to track entity updates and do post execution. I followed the example but getting null exception error. 

java.lang.NoSuchMethodError: com.google.appengine.api.datastore.Key.<init>(Ljava/lang/String;Lcom/google/appengine/api/datastore/Key;JLjava/lang/String;Lcom/google/appengine/api/datastore/AppIdNamespace;)V
	at com.google.appengine.api.datastore.KeyTranslator.createFromPb(KeyTranslator.java:38)

Also I'm using android studio. Not sure what else i need to set to compile and make it work. 

Servlet code

public class PostMsgServlet {

    static Logger logger = Logger.getLogger("logger");

    @PostPut(kinds = {"Credentials"})
    void log(PutContext context) {
        logger.fine("Inside put. Finished putting " + context.getCurrentElement().getKey());


    }

}

[Vinny P]

On Fri, Jan 23, 2015 at 8:32 PM, Arun Nedun <ar...@routestar.in> wrote:

Need the correct syntax and usage for postput callbacks to track entity updates and do post execution. I followed the example but getting null exception error. 

java.lang.NoSuchMethodError

Are you using Objectify 4? If so, can you try upgrading to Objectify 5+ and see if the error repeats itself?

If the error still continues, can you post the entire exception and stack trace?

 

 

-----------------

-Vinny P

Technology & Media Consultant

Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

  

[Jeff Schnitzer]

It doesn't look like there's any Objectify code here, and Objectify doesn't use the callbacks anyways.

My guess is multiple GAE SDKs on the classpath somehow.

Jeff

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