[SERVLET] Unnecessary bytes to hex string conversion for FINE logging

[hypnoce]

What version of gRPC-Java are you using?

1.60.0

What is your environment?

MacOS JDK17

What did you expect to see?

Hex string conversion in when the level is actually FINE:

grpc-java/servlet/src/main/java/io/grpc/servlet/AsyncServletOutputStreamWriter.java

Line 108 in 3abab95

log.finest("outbound data: length={0}, bytes={1}", numBytes, toHexString(bytes, numBytes));

What did you see instead?

Hex string conversion before checking log level

Steps to reproduce the bug

[ejona86]

Yep. That should be an easy fix. Would you be interested in sending a PR?

[hypnoce]

The PR is opened : #11032

[ejona86]

Oh, the "Fixes X" in is the subject, not in the body, so it didn't link back to this. (Thank you!)