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Thread: Getting AbstractMethod Exception in Asynchronous Servlet3.0 application

  1. #1
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    Unhappy Getting AbstractMethod Exception in Asynchronous Servlet3.0 application

    Hi All,

    I am getting following exception when i am trying to call the servlet and in that servlet at "final AsyncContext context = req.startAsync();" this line.....

    Caused by: java.lang.AbstractMethodError: org.eclipse.jetty.server.Request.startAsync(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Ljavax/servlet/AsyncContext; at org.apache.cxf.transport.http.Servlet3Continuation Provider$Servlet3Continuation.<init>(Servlet3Conti nuationProvider.java:77)[142:org.apache.cxf.bundle:2.4.0] at org.apache.cxf.transport.http.Servlet3Continuation Provider.getContinuation(Servlet3ContinuationProvi der.java:58)[142:org.apache.cxf.bundle:2.4.0] at org.apache.camel.component.cxf.CxfConsumer$1.getCo ntinuation(CxfConsumer.java:114)[205:org.apache.camel.camel-cxf:2.8.0.SNAPSHOT] at org.apache.camel.component.cxf.CxfConsumer$1.invok e(CxfConsumer.java:66)[205:org.apache.camel.camel-cxf:2.8.0.SNAPSHOT] at org.apache.cxf.interceptor.ServiceInvokerIntercept or$1.run(ServiceInvokerInterceptor.java:58)[142:org.apache.cxf.bundle:2.4.0] at java.util.concurrent.Executors$RunnableAdapter.cal l(Executors.java:441)[:1.6.0_24] at java.util.concurrent.FutureTask$Sync.innerRun(Futu reTask.java:303)[:1.6.0_24] at java.util.concurrent.FutureTask.run(FutureTask.jav a:138)[:1.6.0_24] at org.apache.cxf.workqueue.SynchronousExecutor.execu te(SynchronousExecutor.java:37)[142:org.apache.cxf.bundle:2.4.0] at org.apache.cxf.interceptor.ServiceInvokerIntercept or.handleMessage(ServiceInvokerInterceptor.java:10 6)[142:org.apache.cxf.bundle:2.4.0] ... 34 more

    I am trying to implement the Asynchronous Servlet (using servlet3.0 ) but i am stucked in this exception....please help me out of this......thanks in advance...

  2. #2
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    Default Re: Getting AbstractMethod Exception in Asynchronous Servlet3.0 application

    This is beyond my familliarity, stab in the dark based on how abstract keyword fuctions,
    if the class of the object inside req has the abstract method startAsync();
    another possibility would be if the Class AsyncContext is abstract thus not letting you make an object to fill context.

    if those both check out I would need to see the entire startAsync method for the req objects class. (would be interesting to know more about the req's parents and siblings since we are dealing with abstract classes.

    anyway, its an outside eye looking in. hopefully its helpful.

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