ZOOKEEPER-4182: Enhance message when packet's length over limit.

[horizonzy]

Append packetLen limit info to the exception message:

• Tell users the default packet length limit and what value(jute.maxBuffer) they had set
• For better debugging

[maoling]

@horizonzy looks good.Thanks for your contribution.
Could you please add more to the GitHub description about what's the intention or advantage the change will bring.

[horizonzy]

@horizonzy looks good.Thanks for your contribution.
Could you please add more to the GitHub description about what's the intention or advantage the change will bring.

Tell user the default packge length limit, In my opinion, the message can even tell user the way to modify the default limit. I will append a commit.

[horizonzy]

what do you think of it

[maoling]

@horizonzy

Tell user the default packge length limit, In my opinion, the message can even tell user the way to modify the default limit. I will append a commit.

Looks good:)

[maoling]

@horizonzy

• throw new IOException("Packet len " + len + " is out of range " + packetLen + "!"); is good enough, adding the operation guideline -Djute.maxBuffer to cover it. to the exception message is a little toilsome
• The only thing I suggest is: give this PR a description. I do it for you:)

[horizonzy]

@horizonzy

• throw new IOException("Packet len " + len + " is out of range " + packetLen + "!"); is good enough, adding the operation guideline -Djute.maxBuffer to cover it. to the exception message is a little toilsome
• The only thing I suggest is: give this PR a description. I do it for you:)

Alright. Thank you :)

[ztzg]

Thank you, @horizonzy. I'm afraid I'm going to close this in favor of #1614, however, as the message is even more informative.