web services - tWebService component - NullPointerException - createPropertyMapper -

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i've problem twebservice talend component, impossible me find solution

my job

i have many ws call in job. can call , response 1 simple ws (2 string param, , 2 string response) but, other ws, more complex (string , object param, , string , object response), twebservice failed. looks ws not call, problem seems talend. mapperfactory failed createpropertymapper. aim moment call ws static parameters , log response tlogrow component

stacktrace

exception in component twebservice_9 java.lang.nullpointerexception     @ org.talend.webservice.mapper.mapperfactory.createpropertymapper(mapperfactory.java:406)     @ org.talend.webservice.mapper.mapperfactory.createcomplextypemapper(mapperfactory.java:339)     @ org.talend.webservice.mapper.mapperfactory.createtypemapper(mapperfactory.java:220)     @ org.talend.webservice.mapper.mapperfactory.createpropertymapper(mapperfactory.java:423)     @ org.talend.webservice.mapper.mapperfactory.createcomplextypemapper(mapperfactory.java:339)     @ org.talend.webservice.mapper.mapperfactory.createtypemapper(mapperfactory.java:220)     @ org.talend.webservice.mapper.mapperfactory.createpropertymapper(mapperfactory.java:423)     @ org.talend.webservice.mapper.mapperfactory.createcomplextypemapper(mapperfactory.java:339)     @ org.talend.webservice.mapper.mapperfactory.createtypemapper(mapperfactory.java:220)     @ org.talend.webservice.mapper.mapperfactory.createpropertymapper(mapperfactory.java:423)     @ org.talend.webservice.mapper.mapperfactory.createcomplextypemapper(mapperfactory.java:339)     @ org.talend.webservice.mapper.mapperfactory.createtypemapper(mapperfactory.java:220)     @ org.talend.webservice.mapper.mapperfactory.createmessagemapper(mapperfactory.java:208)     @ org.talend.webservice.helper.serviceinvokerhelper.createmessagemapper(serviceinvokerhelper.java:165)     @ org.talend.webservice.helper.serviceinvokerhelper.getmessagemapper(serviceinvokerhelper.java:157)     @ org.talend.webservice.helper.serviceinvokerhelper.invoke(serviceinvokerhelper.java:184)     @ org.talend.webservice.helper.serviceinvokerhelper.invoke(serviceinvokerhelper.java:237)     @ ipad.test_0_1.test.twebservice_9process(test.java:573)     @ ipad.test_0_1.test.runjobintos(test.java:921)     @ ipad.test_0_1.test.main(test.java:786)

if can me, i'll grateful !

thanks in advance


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