microsoft / microsoft/azure-tools-for-java

[IntelliJ] Uncaught Exception Error initializing Azure MCP Server: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.util.ArrayList<com.microsoft.azure.toolkit.intellij.azuremcp.GithubRelease>` from Object

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Dominant language
Java
Stars
262
Forks
185
Avg merge
2d 21h
Merged PRs (30d)
1

Description

IntelliJ build version: 2026.1.1 IU-261.23567.138
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.2
Plugin version: 3.97.5-2026.1
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,0,0,1761x1055,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

<REDACTED: Generic Secret>
<REDACTED: Generic Secret>
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.lambda$getLatestAzureMcpRelease$1(GithubClient.java:103)
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.executeWithRetry(GithubClient.java:64)
	at com.microsoft.azure.toolk

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in GithubClient.java at getLatestAzureMcpRelease (line 103) and executeWithRetry (line 64), then inspect the response being deserialized into ArrayList. Reproduce the Azure MCP initialization failure and verify that the latest-release lookup handles the returned shape without an uncaught exception.

Written by the indexing model from the issue text.

Assessment

Tech stack
azure, github, java
Domain
api, cloud, tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

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