protected void appendDetail(StringBuffer buffer, String fieldName, int[] array) {
        buffer.append(arrayStart);
        for (int i = 0; i < array.length; i++) {
            if (i > 0) {
                buffer.append(arraySeparator);
            }
            appendDetail(buffer, fieldName, array[i]);
        }
        buffer.append(arrayEnd);
    }
<p>Append to the <code>toString</code> the detail of an
<code>int</code> array.</p>

@param buffer  the <code>StringBuffer</code> to populate
@param fieldName  the field name, typically not used as already appended
@param array  the array to add to the <code>toString</code>,
 not <code>null</code>
android/android_framework/base/src/main/java/lang3/builder/ToStringStyle.java