microsoft / microsoft/azure-tools-for-java

[IntelliJ] Uncaught Exception Error initializing Azure MCP Server: java.net.SocketException: An established connection was aborted by the software in your host machine java.io.UncheckedIOException: java.net.SocketException: An established connection was ab

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

Description

IntelliJ build version: 2026.1.3 IU-261.25134.95
OS: Windows 11
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.6-2026.1
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,0,2554x1394,invalid,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]

Error message:

IdeaLoggingEvent[message=Error initializing Azure MCP Server: java.net.SocketException: An established connection was aborted by the software in your host machine, throwable=java.io.UncheckedIOException: java.net.SocketException: An established connection was aborted by the software in your host machine
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.lambda$downloadToFile$2(GithubClient.java:123)
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.executeWithRetry(GithubClient.java:64)
	at com.microsoft.azure.toolkit.intellij.azuremcp.GithubClient.downloadToFile(GithubClient.java:118)
	at com.microsoft.azure.toolkit.intellij.azuremcp.AzureMcpPackageManager

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 by reading the stack trace locations in GithubClient.java, especially lines 64, 118, and 123, then follow how AzureMcpPackageManager initializes the server. Reproduce initialization with IntelliJ 2026.1.3 on Windows 11 and inspect the download retry path. Done means the reported initialization exception is handled or no longer occurs in the affected setup.

Written by the indexing model from the issue text.

Assessment

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

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