public void METHOD_1 ( TYPE_1 key ) { <BUG> if ( ( ( keys ) != null ) && ( key != null ) ) keys = new java.util.Vector < > ( ) ;</BUG> if ( key != null ) keys . add ( key ) ; }
public void METHOD_1 ( TYPE_1 key ) { if ( ( ( keys ) == null ) && ( key != null ) ) keys = new java.util.Vector < > ( ) ; if ( key != null ) keys . add ( key ) ; } 
