1 /* @test /nodynamiccopyright/

     2  * @bug 7196163

     3  * @summary Verify that variable used as an operand to try-with-resources is rejected if it is not

     4  *          definitelly assigned before use and or not final or effectivelly final.

     5  * @compile/fail/ref=TwrForVariable4.out -XDrawDiagnostics -Xlint:-options TwrForVariable4.java

     6  */

     7 public class TwrForVariable4 implements AutoCloseable {

     8     public static void main(String... args) {

     9         TwrForVariable4 uninitialized;

    10 

    11         try (uninitialized) {

    12             fail("must be initialized before use");

    13         }

    14         uninitialized = new TwrForVariable4();

    15 

    16         TwrForVariable4 notEffectivellyFinal1 = new TwrForVariable4();

    17 

    18         notEffectivellyFinal1 = new TwrForVariable4();

    19 

    20         try (notEffectivellyFinal1) {

    21             fail("not effectivelly final");

    22         }

    23 

    24         TwrForVariable4 notEffectivellyFinal2 = new TwrForVariable4();

    25 

    26         try (notEffectivellyFinal2) {

    27             notEffectivellyFinal2 = new TwrForVariable4();

    28             fail("not effectivelly final");

    29         }

    30 

    31         try (notFinal) {

    32             fail("not final");

    33         }

    34     }

    35 

    36     static TwrForVariable4 notFinal = new TwrForVariable4();

    37 

    38     static void fail(String reason) {

    39         throw new RuntimeException(reason);

    40     }

    41 

    42     public void close() {

    43     }

    44 

    45 }