eclipse-paho / eclipse-paho/paho.mqtt.java

IOException When Websocket Frame opcode == 0

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Dominant language
Java
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Description

Bug exists Release Version 1.2.5 ( Master Branch)

public WebSocketFrame(InputStream input) throws IOException {
.....
throw new IOException("Invalid Frame: Opcode: " + this.opcode);

https://www.rfc-editor.org/rfc/rfc6455#section-5.2 SDK should support opcode 0

Contributor guide

Open the contributing guide

Research direction

Start in the public WebSocketFrame(InputStream) constructor shown in the issue and compare opcode 0 handling with RFC 6455 §5.2. Reproduce the failure on release 1.2.5 or current master, then verify that a frame with opcode 0 no longer raises the reported IOException.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
networking
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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