Fixing ADB databinding issue when web service method returning OMElement

When I try to call a web service which return an OMElement, I faced above issue (My Axis2 version is 1.6.1). Following I have shown the steps that I did for fixing the issue.

This is the part of the stack trace.

org.apache.axis2.AxisFault: org.apache.axis2.databinding.ADBException: Any type  element type has not been given

    at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)

    at org.wso2.carbon.bam.presentation.stub.QueryServiceStub.fromOM(QueryServiceStub.java:8908)

    at org.wso2.carbon.bam.presentation.stub.QueryServiceStub.queryColumnFamily(QueryServiceStub.java:800)

    at org.wso2.carbon.bam.clustermonitor.ui.ClusterAdminClient.getClusterStatistics(ClusterAdminClient.java:148)

If you check the schema of the response element in your generated wsdl(by axis2) it should similar to this.

<xs:element name="queryColumnFamilyResponse">

      <xs:complexType>

         <xs:sequence>

                <xs:element minOccurs="0" name="return" nillable="true" type="xs:anyType" />

         </xs:sequence>

      </xs:complexType>

</xs:element>

In order to fix the ADB databinding issue you need to change the above schema as follows and regenerate the stub code.

<xs:element name="queryColumnFamilyResponse">

     <xs:complexType>

          <xs:sequence>

              <xs:any processContents="skip"/>

          </xs:sequence>

     </xs:complexType>

</xs:element>

Then ADB will generate code that represents the content of OriginalMessage as an OMElement and this will fix your problem.