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

Open
#12,216 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

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

Description

IntelliJ build version: 2025.3.3 IU-253.31033.145
OS: Windows 11
JDK: JetBrains s.r.o. 21.0.10
Plugin version: 3.97.6-2025.3
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,7,0,1276x715,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@1d79dba4,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:6

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 line 103 and inspect the Azure MCP release lookup and its retry path. Compare the response shape being deserialized with the expected GithubRelease collection, then verify that Azure MCP server initialization completes without the reported exception.

Written by the indexing model from the issue text.

Assessment

Tech stack
azure, github, java
Domain
devtools
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
45/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.