static Comparer<byte[]> getBestComparer() {
            try {
                Class<?> theClass = Class.forName(UNSAFE_COMPARER_NAME);

                // yes, UnsafeComparer does implement Comparer<byte[]>
                @SuppressWarnings("unchecked")
                Comparer<byte[]> comparer = (Comparer<byte[]>) theClass.getEnumConstants()[0];
                return comparer;
            } catch (Throwable t) { // ensure we really catch *everything*
                return lexicographicalComparerJavaImpl();
            }
        }
Returns the Unsafe-using Comparer, or falls back to the pure-Java implementation if
unable to do so.
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/common/utils/Bytes.java