EHC.HASH
The EHC Class should implement both equals(Object) and hashCode() methods. EHC warnings appear if an equals() method was specified without a hashCode() method, or vice versa. This may cause a problem with some collections that expect equal objects to have equal hashcodes.
Example 1
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public class EHC_HASH_Sample_1 {
private int seed;
public EHC_HASH_Sample_1(int seed) {
this.seed = seed;
}
public boolean equals(Object o) {
return (o instanceof EHC_HASH_Sample_1)
&& ((EHC_HASH_Sample_1) o).seed == seed;
}
// no hashCode method defined
}EHC.HASH is reported for class declaration on line 8: Class defines equals() but does not define hashCode().