public void METHOD_1 ( TYPE_1 item ) { if ( item == null ) throw new java.lang.NullPointerException ( ) ; final TYPE_2 < TYPE_1 > . TYPE_3 VAR_1 = first ; first = new TYPE_3 ( item ) ; if ( ( size ) == 0 ) { VAR_2 = null ; VAR_3 = null ; VAR_4 = first ; } else { VAR_2 = VAR_1 ; VAR_5 = first ; VAR_3 = null ; if ( ( size ) == 1 ) VAR_6 = VAR_1 ; } ( size ) ++ ; }

public void METHOD_1 ( TYPE_1 item ) { if ( item == null ) throw new java.lang.NullPointerException ( ) ; final TYPE_2 < TYPE_1 > . TYPE_3 VAR_1 = first ; first = new TYPE_3 ( item ) ; if ( ( size ) == 0 ) { VAR_2 = null ; VAR_3 = null ; VAR_4 = first ; } else { VAR_2 = VAR_1 ; VAR_5 = first ; VAR_3 = null ; } ( size ) ++ ; }
