Echo bot sample returns error when using LINE channel

[MinoMinoMinoru]

Sample information

• Sample type: Java SDK Echo Bot Sample https://github.com/microsoft/BotBuilder-Samples/tree/main/samples/java_springboot/02.echo-bot
• Sample language: Java
• Channel : LINE Channel (other than LINE channel, Web Chat and Teams channels are enabled and the issue only occurs when using LINE channel

Describe the bug

When using Java SDK Echo Bot Sample, the bot sends payload like below

"conversation":{"properties":{},"isGroup":false,"id":"xxxxxxxxxxxxxxxxxxxxxxxx"}

and having this "properties" was causing LINE channel to return 400 error. *The LINE connector does not return 400 error as of now because the Bot Service rolled back to the previous state which did not return 400 error.

Same payload is sent to Web Chat as well but only LINE channel returned errors and responses from Web Chat channel were fine.

To Reproduce

Go to https://github.com/microsoft/BotBuilder-Samples/tree/main/samples/java_springboot/02.echo-bot and enable LINE Channel. ※Make sure "properties":{} is included

Expected behavior

Since "properties" seems unnecessary, eliminate it so it would not cause 400 error even if the Bot Service rolls out the change.

[dmvtech]

Hi @MinoMinoMinoru

This issue is happening currently? Per this issue, there may have been a fix rolled out.

[dmvtech]

@MinoMinoMinoru Are you still experiencing this issue?

[dmvtech]

Closing due to lack of response.