Error while executing API in wso2: ServiceContext in OperationContext does not match !

This error occurs when you try to execute an api with POST method rather GET, where this api accepts only GET method.

TID: [0] [AM] [2014-11-07 06:46:28,274] ERROR {org.apache.synapse.transport.passthru.TargetHandler} -  Unexpected error. {org.apache.synapse.transport.passthru.TargetHandler}
TID: [0] [AM] [2014-11-07 06:46:28,277] ERROR {org.apache.axis2.transport.base.threads.NativeWorkerPool} -  Uncaught exception {org.apache.axis2.transport.base.threads.NativeWorkerPool}
org.apache.axis2.engine.AxisError: ServiceContext in OperationContext does not match !
        at org.apache.axis2.context.MessageContext.setOperationContext(MessageContext.java:1404)
        at org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.processResponse(MultitenantMessageReceiver.java:129)
        at org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.receive(MultitenantMessageReceiver.java:81)
        at org.apache.synapse.transport.passthru.TargetErrorHandler$1.run(TargetErrorHandler.java:134)
        at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
        at java.lang.Thread.run(Thread.java:662)