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  1. JDK
  2. JDK-6563143

javac should issue a warning for overriding equals without hashCode

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    • b82
    • generic
    • generic
    • Verified

    Description

      As discussed in "Effective Java" a common source of bugs is for a class to override equals without overriding hashCode. To reduce the incidence of this, javac could issue a warning when this occured.

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          Enhancement - null JDK-6565539 javac could issue a warning for not overriding toString in a concrete class

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

          Enhancement - null JDK-8015831 Add lint check for calling overridable methods from a constructor

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

          Enhancement - null JDK-6563146 javac should issue a warning for calling overridable methods in a constructor, clone, or readObject

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

          Enhancement - null JDK-8008436 javac should not issue a warning for overriding equals without hasCode if hashCode has been overriden by a superclass

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

          Enhancement - null JDK-8182323 Add Hashable interface and compiler checking for hashCode/equals contract

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

          Enhancement - null JDK-4214818 equals() symmetry and equals()/hashCode() compatibility should be enforced

          • P5 - Cosmetic problem like misspelt words or misaligned text.
          • Closed

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              vromero Vicente Arturo Romero Zaldivar
              darcy Joe Darcy
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