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  1. JDK
  2. JDK-7190296

unsoundness in type-containment implementation

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    • b99
    • unknown
    • generic
    • Verified

    Description

      The following program does not compile with javac - but is accepted by Eclipse

      interface Foo<X extends Comparable<X>> {
         List<X> getList();
      }

      class Test {
         <T extends Comparable<? super T>> List<T> m(List<T> arg) { return null; }
       
         void test(Foo<?> foo) {
            m(foo.getList()).get(0);
         }
      }

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8012039 enum type variable not within its bound

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. JDK-8033718 Inference ignores capture variable as upper bound

          • P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-6893625 Generics case does not compile

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Enhancement - null JDK-7115044 Umbrella: Add support for lambda expressions

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

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              dlsmith Dan Smith
              mcimadamore Maurizio Cimadamore
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