return the precedence of the given property source , -1 if not found . concode_field_sep List<PropertySource<?>> propertySourceList concode_elem_sep Log logger concode_field_sep void assertLegalRelativeAddition concode_elem_sep void replace concode_elem_sep PropertySource<?> remove concode_elem_sep void addLast concode_elem_sep void addBefore concode_elem_sep boolean contains concode_elem_sep Iterator<PropertySource<?>> iterator concode_elem_sep void addAfter concode_elem_sep int size concode_elem_sep PropertySource<?> get concode_elem_sep String toString concode_elem_sep void addAtIndex concode_elem_sep int assertPresentAndGetIndex concode_elem_sep void addFirst concode_elem_sep void removeIfPresent
int function ( PropertySource < ? > arg0 ) { return this . propertySourceList . indexOf ( arg0 ) ; }