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
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- Dominant language
- Java
- Stars
- 262
- Forks
- 185
- Avg merge
- 2d 21h
- Merged PRs (30d)
- 1
Description
IntelliJ build version: 2026.1.2 IU-261.24374.151
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.2
Plugin version: 3.97.6-2026.1
Additional Info: None
Parent component:
com.intellij.openapi.wm.impl.IdeRootPane[,0,0,1728x1030,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.toolkContributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start in GithubClient.java at getLatestAzureMcpRelease, especially line 103, and inspect the response being deserialized into ArrayList. Reproduce the Azure MCP Server initialization failure in the reported IntelliJ environment and verify that release lookup completes without the reported MismatchedInputException.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 65/100