Unwrap does not read from the socket again

[indvamshi]

Hi
I have gone through the code and I found that buffer underflow does not read the from the socket again. It only increases the buffer size.
Based on the documentation
https://docs.oracle.com/javase/7/docs/api/javax/net/ssl/SSLEngine.html
If the client reads partial data from the network, we need to force the client to read it again. But, its not happening with your code.

After debugging the code, when I force the logic to go into buffer underflow I get the following exception
Exception in thread "main" javax.net.ssl.SSLException: Unsupported record version Unknown-0.0
at sun.security.ssl.EngineInputRecord.bytesInCompletePacket(EngineInputRecord.java:117)
at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:862)
at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:775)
at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)

Because the data read initially is reset in buffer underflow.

Can you please look into this if you have time.

Much appreciated.
Thanks
Vam

[alkarn]

Hello Vam,

first of all thanks for using the code!

Can you provide the steps to reproduce the problem and create the exception?

[indvamshi]

Thanks for responding. It usually happens when read method reads partial data from the socket. Initially I found this issue when am doing stress testing like 20 threads with ramp up 10 and continue for ever. Let me know if you need more information.

…

On 5 Feb 2018 11:47 am, "Alex Karnezis" ***@***.***> wrote: Hello Vam, first of all thanks for using the code! Can you provide the steps to reproduce the problem and create the create the exception? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADelaXIlx5IpM1q7utAif0l204i4lHEwks5tRupjgaJpZM4R4VY6> .

[abmangroliya15]

Thanks for code. I'm using your code to build server but getting same issue. can you please help me to resolve this issue?

[smadappa]

@indvamshi @alkarn I am having same issue where large items fail with "javax.net.ssl.SSLException: Unsupported record version Unknown-0.0". Can you please let me know if you have solved this issue or if you chose an alternative solution?

[kirtisinghvliv]

@alkarn @indvamshi I am facing same issue with large amount of data. can you help me please to resolve issue?

[JerryChin]

@kirtisinghvliv Why don't you use Netty ? This project is not very appropriate for serious project.

[ajithberlin]

@alkarn facing the same issue any solution on this?

[marianobarrios]

FYI: Partially inspired by this project, I wrote this other one, with a very similar goal. Leaving this here in case it is of use.