public void setMappingContext(MappingContext mappingContext) {
this.mappingContext = mappingContext;
}
protected void executeActivity(ProcessInstance instance) throws Exception {
MappingContext mc= getMappingContext();
if(mc !=null){
ParameterContext[] params = mc.getMappingElements();
for (int i = 0; i < params.length; i++) {
ParameterContext param = params[i];
String srcVariableName = null;
String targetFieldName = param.getArgument().getText();