Revert "findbugs replaced byte[].toString() with Arrays.toString(byte[])(cherry picked from commit ce7c6d23575d455a8273b77702a56b7bb419b37b)"

This reverts commit 55ec8f3a2d8ae73ae1e20a806a8f8d0ee29fa274.
findbugs replaced byte[].toString() with new String(byte[])