hadi mallah [http://community.jboss.org/people/hadimallah] created the discussion "NumberFormatException: empty String" To view the discussion, visit: http://community.jboss.org/message/542422#542422 -------------------------------------------------------------- I'm using JBoss 4.2.3.GA I have implemented and deployed a WS, the request, the response and the exception is below. My question is how can I define a parameter of type double or int for the web service method, and the client who will invoke my WS might send nothing, as demostrated in the request below, so if i changed the double param to string it works fine, but i need to define it as int or double, I tried Double and Integer ..but did not work, same problem. Appreciate the help. wsdl: <message name="xxx_getTest">     <part name="String_1" type="xsd:string">     </part>     <part name="String_2" type="xsd:string">     </part>     <part name="String_3" type="xsd:string">     </part>     <part name="String_4" type="xsd:string">     </part>     <part name="String_5" type="xsd:string">     </part>     <part name="Date_6" type="xsd:dateTime">     </part>     <part name="double_7" type="xsd:double">     </part>   </message> Request: <soapenv:Body>   <ns1:getTest soapenv:encodingStyle=' http://schemas.xmlsoap.org/soap/encoding/ http://schemas.xmlsoap.org/soap/encoding/' xmlns:ns1=' http://xxx.xxxx.xxx/ http://xxx.xxxx.xxx/'>    <String_1 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:type='xsd:string'>54654654</String_1>    <String_2 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:nil='true' xsi:type='xsd:string'/>    <String_3 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:type='xsd:string'>3213546546</String_3>    <String_4 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:type='xsd:string'>316546546</String_4>    <String_5 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:type='xsd:string'>321354654</String_5>    <Date_6 xmlns:xsd=' http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema' xmlns:xsi=' http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/XMLSchema-instance' xsi:type='xsd:dateTime'>2010-05-11T20:18:13.698Z</Date_6>    <double_7 href='#id0'/>   </ns1:getTest> </soapenv:Body> Response: <env:Envelope xmlns:env=' http://schemas.xmlsoap.org/soap/envelope/ http://schemas.xmlsoap.org/soap/envelope/'> <env:Header/> <env:Body>   <env:Fault xmlns:env=' http://schemas.xmlsoap.org/soap/envelope/ http://schemas.xmlsoap.org/soap/envelope/'>    <faultcode>env:Server</faultcode>    <faultstring>empty String</faultstring>   </env:Fault> </env:Body> </env:Envelope> Exception: java.lang.NumberFormatException: empty String     at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:994)     at java.lang.Double.valueOf(Double.java:447)     at org.jboss.xb.binding.SimpleTypeBindings.unmarshal(SimpleTypeBindings.java:720)     at org.jboss.ws.core.jaxrpc.binding.SimpleDeserializer.deserialize(SimpleDeserializer.java:59)     at org.jboss.ws.core.jaxrpc.binding.SimpleDeserializer.deserialize(SimpleDeserializer.java:47) -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/542422#542422] Start a new discussion in JBoss Web Services Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]