public TYPE_1 METHOD_1 ( TYPE_1 node ) { if ( VAR_1 . contains ( node ) ) { return node ; } int index = VAR_2 . METHOD_2 ( node ) ; if ( index == ( - 1 ) ) { throw new java.lang.NullPointerException ( ( ( node + STRING_1 ) + STRING_2 ) ) ; } return VAR_1 . get ( index ) ; }

public TYPE_1 METHOD_1 ( TYPE_1 node ) { if ( VAR_1 . contains ( node ) ) { return node ; } int index = VAR_2 . METHOD_2 ( node ) ; if ( index == ( - 1 ) ) { return null ; } return VAR_1 . get ( index ) ; }
