CWE-581

Object Model Violation: Just One of Equals and Hashcode Defined

Variant

Draft

Description

The product does not maintain equal hashcodes for equal objects.

Java objects are expected to obey a number of invariants related to equality. One of these invariants is that equal objects must have equal hashcodes. In other words, if a.equals(b) == true then a.hashCode() == b.hashCode().

Parent Weaknesses (ChildOf)

CWE-573: Improper Following of Specific...

CWE-697: Incorrect Comparison...

Common Consequences

Scope

Integrity

Other

Impact

Other

Potential Mitigations

Implementation

Both Equals() and Hashcode() should be defined.

Applicable Platforms

Java

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