You have created an application which uses labels associated to other control (like combobox). The asterisk (*) which indicates that the field is required appears only for higher SAPUI5 versions, and not for 1.38.
SAP UI for Netweaver 2.0
star, mandatory, UI5 , KBA , CA-UI5-CTR , SAP UI5 Controls , How To
About this pageThis is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).
Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.