public HashCodeBuilder append(Object object) {
        if (object == null) {
            iTotal = iTotal * iConstant;

        } else {
            if(object.getClass().isArray()) {
                // 'Switch' on type of array, to dispatch to the correct handler
                // This handles multi dimensional arrays
                if (object instanceof long[]) {
                    append((long[]) object);
                } else if (object instanceof int[]) {
                    append((int[]) object);
                } else if (object instanceof short[]) {
                    append((short[]) object);
                } else if (object instanceof char[]) {
                    append((char[]) object);
                } else if (object instanceof byte[]) {
                    append((byte[]) object);
                } else if (object instanceof double[]) {
                    append((double[]) object);
                } else if (object instanceof float[]) {
                    append((float[]) object);
                } else if (object instanceof boolean[]) {
                    append((boolean[]) object);
                } else {
                    // Not an array of primitives
                    append((Object[]) object);
                }
            } else {
                iTotal = iTotal * iConstant + object.hashCode();
            }
        }
        return this;
    }
<p>
Append a <code>hashCode</code> for an <code>Object</code>.
</p>

@param object
           the Object to add to the <code>hashCode</code>
@return this
android/android_framework/base/src/main/java/lang3/builder/HashCodeBuilder.java