Comparison of suspicious of all references

I have my mistake using Find bugs tool, get suspicious the next integer references comparison, you can you please inform me how to solve this problem?

public boolean equals (Object o) {}

If (o == null) {}
Returns false;
}
return (this.orderNbr == (((ProductCategoryType) o) .orderNbr));
}

847389 wrote:
Yes, it is declared as integer.

you mean, compare the method equal use inside? is it appropriate?

return (o this.orderNbr.equals (((ProductCategoryType)) .orderNbr));

Yes, people should compare the fields of integer type by using the equals() method.

I think that code reusable standard would look like

public boolean equals(Object o) {
        if (o==null) return false;
        if (!(o instanceof ProductCategoryType)) return false;
        ProductCategoryType that = (ProductCategoryType)o;
        if ( (this.orderNbr==null) && (that.orderNbr==null) ) return true; // yes ?
        if (this.orderNbr==that.orderNbr) return true;
        if (this.orderNbr==null) return false;
        return this.orderNbr.equals(that.orderNbr);
    }

Tags: Java

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