magefree / magefree/mage

NPE in Distant Melody, Kindred Dominance

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#14,392 4 comments 0 reactions 0 assignees View on GitHub
bug good first issue
Dominant language
Java
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Description

Error type: General error - NullPointerException

Client version: 1.4.58-V1 (build: 2026-02-06 04:19)
Java version: 1.8.0_201
Default charset: UTF-8

NullPointerException - look at server or client logs for more details

Stack trace:
mage.client.remote.CallbackClientImpl.lambda$onCallback$2(CallbackClientImpl.java:329)
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
java.awt.EventQueue.access$500(EventQueue.java:97)
java.awt.EventQueue$3.run(EventQueue.java:709)
java.awt.EventQueue$3.run(EventQueue.java:703)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
and other 5 lines

Contributor guide

No contributing guide indexed for this repository

Research direction

Start at mage.client.remote.CallbackClientImpl.java:329 and inspect the server and client logs referenced by the report. Reproduce the Distant Melody, Kindred Dominance case if possible, then trace the callback failure across the available stack trace. Done means the triggering case no longer produces this NullPointerException and the relevant behavior is verified.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
desktop, game-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
38/100

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