error - NullPointerException (CastelProtocolDecoder ...)

Dears,

error - NullPointerException (CastelProtocolDecoder:163 < *:397 < *:612 < ExtendedObjectDecoder:52 < ... < WrapperContext:102 < ...)

This error appears for some connected devices, any idea what is causing this error?

It means there's some issue with decoding the data.

Does it require deep tracing in order to find the bug in the decoder? can you help if I sent the Hexa ?

HEX will be required to investigate it. And also please provide the protocol documentation.

These are sampe HEX, and regarding the documentation, can I send it by email?

2022-09-27 01:28:39  INFO: [1f0f7802: castel < 185.133.180.21] HEX: 40405f0004474355333635303030303236000000000000000040027f7d3163f77d3163e0f7820400000000451101000d0000020400033829941f00830c1e000705210b210c210d210f212f21a621010b572ba406353757b88c0b00a80d0d0a
2022-09-27 01:28:39  WARN: [1f0f7802] error - NullPointerException (CastelProtocolDecoder:163 < *:397 < *:612 < ExtendedObjectDecoder:52 < ... < WrapperContext:102 < ...)
2022-09-27 01:28:39  INFO: [1f0f7802] disconnected

2022-09-27 01:29:00  INFO: [eec4dae9: castel < 185.133.180.21] HEX: 40405f0004474355333635303030303236000000000000000040029c263263ab273263f0958404b80b00007f1501001c0000020400033527941a00830c1e000705210b210c210d210f212f21a621010b5017f604302147fa900b003e250d0a
2022-09-27 01:29:00  WARN: [eec4dae9] error - NullPointerException (CastelProtocolDecoder:163 < *:397 < *:612 < ExtendedObjectDecoder:52 < ... < WrapperContext:102 < ...)
2022-09-27 01:29:00  INFO: [eec4dae9] disconnected

2022-09-27 17:23:03  INFO: [a1c0e349: castel < 185.133.181.31] HEX: 40405f0004474355333635303030303236000000000000000040025fc13263b5c53263a8958604d8590000831a0100ca0000020400033a29941f00830c1e000705210b210c210d210f212f21a621010b57547307562f32e0960b001b680d0a
2022-09-27 17:23:03  WARN: [a1c0e349] error - NullPointerException

Sure, you can send it to the support email address.

I have just sent the documentation