question: public void addAssociatedGefahr ( GefaehrdungsUmsetzung gefaehrdung ) { if ( ! associatedGefaehrdungen . contains ( gefaehrdung ) ) { associatedGefaehrdungen . add ( gefaehrdung ) ; } }
target:  Adds a gefaehrdung to the list of all gefaehrdungen if gefaehrdung not already exits.