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: 2026.2.2 IU-262.10315.125
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.4
Plugin version: 3.97.7-2026.2
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,0,0,1728x1005,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$0(GithubClient.java:103)
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.executeWithRetry(GithubClient.java:64)
	at com.microsoft.azure.toolk

Contributor guide

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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 azuremcp/GithubClient.java at getLatestAzureMcpRelease (line 103), then read executeWithRetry (line 64) and the GithubRelease type. Inspect the GitHub response used to initialize the Azure MCP Server and how it is deserialized. Done means the reported response no longer causes an uncaught MismatchedInputException during initialization.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
55/100

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