WSDL - One way operations

I am trying to create a webservice using Axis2 which has a method with no parameter. This method does not accept a parameter but returns a value.

Please refer to "getAllResumeIds" operation. The below WSDL gives me a warning "WS-I: (BP2208) wsdl:operation was not a request/response or one-way operation". Also the code generation from this WSDL fails.

Can someone please let me know how to resolve this?

Thank you

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
	xmlns:tns="http://www.examples.com/wsdl/ResumeService.wsdl" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ResumeService"
	targetNamespace="http://www.examples.com/wsdl/ResumeService.wsdl">
	<wsdl:types>
		<xsd:schema targetNamespace="http://www.examples.com/wsdl/ResumeService.wsdl">
			<xsd:element name="getResumeId">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="firstName" type="xsd:string" />
						<xsd:element name="lastName" type="xsd:string"></xsd:element>
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>
			<xsd:element name="getResumeIdResponse">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="resumeId" type="xsd:string" />
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>
			<xsd:element name="getResumeDetails">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="resumeId" type="xsd:string"></xsd:element>
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>
			<xsd:element name="getResumeDetailsResponse">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="firstName" type="xsd:string"></xsd:element>
						<xsd:element name="lastName" type="xsd:string"></xsd:element>
						<xsd:element name="address" type="tns:addressType"></xsd:element>
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>

			<xsd:complexType name="addressType">
			            <xsd:sequence>      
                              <xsd:element name="city" type="xsd:string" />      
                              <xsd:element name="state" type="xsd:string" />
                              <xsd:element name="country" type="xsd:string" />
                              <xsd:element name="mobile" type="xsd:string" />
                              <xsd:element name="email" type="xsd:string" />
                        </xsd:sequence>    			
			</xsd:complexType>
			
			<xsd:element name="getResumeIdsResponse">
				<xsd:complexType>
					<xsd:sequence>
						<xsd:element name="resumeIds" type="xsd:string" />   						
					</xsd:sequence>
				</xsd:complexType>
			</xsd:element>
	

		</xsd:schema>
	</wsdl:types>
	<wsdl:message name="getResumeIdRequest">
		<wsdl:part element="tns:getResumeId" name="parameters" />
	</wsdl:message>
	<wsdl:message name="getResumeIdResponse">
		<wsdl:part element="tns:getResumeIdResponse" name="parameters" />
	</wsdl:message>
	<wsdl:message name="getResumeDetailsRequest">
		<wsdl:part name="parameters" element="tns:getResumeDetails"></wsdl:part>
	</wsdl:message>
	<wsdl:message name="getResumeDetailsResponse">
		<wsdl:part name="parameters" element="tns:getResumeDetailsResponse"></wsdl:part>
	</wsdl:message>
	<wsdl:message name="getResumeIdsResponse">
		<wsdl:part name="parameters" element="tns:getResumeIdsResponse"></wsdl:part>
	</wsdl:message>
	<wsdl:portType name="ResumeService">
		<wsdl:operation name="getResumeId">
			<wsdl:input message="tns:getResumeIdRequest" />
			<wsdl:output message="tns:getResumeIdResponse" />
		</wsdl:operation>
		<wsdl:operation name="getResumeDetails">
			<wsdl:input message="tns:getResumeDetailsRequest"></wsdl:input>
			<wsdl:output message="tns:getResumeDetailsResponse"></wsdl:output>
		</wsdl:operation>
		<wsdl:operation name="getAllResumeIds">		
			<wsdl:output message="tns:getResumeIdsResponse"></wsdl:output>
		</wsdl:operation>
	</wsdl:portType>
	<wsdl:binding name="ResumeServiceSOAP" type="tns:ResumeService">
		<soap:binding style="document"
			transport="http://schemas.xmlsoap.org/soap/http" />
		<wsdl:operation name="getResumeId">
			<soap:operation
				soapAction="http://www.examples.com/wsdl/ResumeService.wsdl/getResumeId" />
			<wsdl:input>
				<soap:body use="literal" />
			</wsdl:input>
			<wsdl:output>
				<soap:body use="literal" />
			</wsdl:output>
		</wsdl:operation>
		<wsdl:operation name="getResumeDetails">
			<soap:operation
				soapAction="http://www.examples.com/wsdl/ResumeService.wsdl/getResumeDetails" />
			<wsdl:input>
				<soap:body use="literal" />
			</wsdl:input>
			<wsdl:output>
				<soap:body use="literal" />
			</wsdl:output>
		</wsdl:operation>
		<wsdl:operation name="getAllResumeIds">
			<soap:operation soapAction="http://www.examples.com/wsdl/ResumeService.wsdl/getAllResumeIds" />			
			<wsdl:output>
				<soap:body use="literal" />
			</wsdl:output>
		</wsdl:operation>
	</wsdl:binding>
	<wsdl:service name="ResumeService">
		<wsdl:port binding="tns:ResumeServiceSOAP" name="ResumeServiceSOAP">
			<soap:address location="http://www.example.org/" />
		</wsdl:port>
	</wsdl:service>
</wsdl:definitions>

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