public boolean equals()

in src/main/java/org/apache/commons/logging/impl/WeakHashtable.java [450:477]

• 17 lines of code
• 4 McCabe index (conditional complexity)

        public boolean equals(final Object o) {
            boolean result = false;
            if (o instanceof Referenced) {
                final Referenced otherKey = (Referenced) o;
                final Object thisKeyValue = getValue();
                final Object otherKeyValue = otherKey.getValue();
                if (thisKeyValue == null) {
                    result = otherKeyValue == null;

                    // Since our hash code was calculated from the original
                    // non-null referant, the above check breaks the
                    // hash code/equals contract, as two cleared Referenced
                    // objects could test equal but have different hash codes.
                    // We can reduce (not eliminate) the chance of this
                    // happening by comparing hash codes.
                    result = result && this.hashCode() == otherKey.hashCode();
                    // In any case, as our c'tor does not allow null referants
                    // and Hashtable does not do equality checks between
                    // existing keys, normal hashtable operations should never
                    // result in an equals comparison between null referants
                }
                else
                {
                    result = thisKeyValue.equals(otherKeyValue);
                }
            }
            return result;
        }