microsoft / microsoft/azure-tools-for-java
[IntelliJ] Uncaught Exception java.lang.Throwable: Authenticator.setDefault() was changed to [null] - other than [com.intellij.util.net.CustomizedPlatformJdkProxyProvider$CustomizedAuthenticator@2283993f].
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- Java
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Description
IntelliJ build version: 2026.2.0.1 IU-262.8665.337
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.7-2026.2
Additional Info: None
Parent component:
com.intellij.openapi.wm.impl.IdeRootPane[,0,0,1710x1073,layout=com.intellij.openapi.wm.impl.IdeRootPane$CustomHeaderRootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=449,maximumSize=,minimumSize=,preferredSize=]
Error message:
IdeaLoggingEvent[message=null, throwable=java.lang.Throwable: Authenticator.setDefault() was changed to [null] - other than [com.intellij.util.net.CustomizedPlatformJdkProxyProvider$CustomizedAuthenticator@2283993f].
This may make some IDEA network calls fail.
at com.microsoft.azure.toolkit.intellij.base.PluginLifecycleListener.initProxy(PluginLifecycleListener.java:109)
at com.microsoft.azure.toolkit.intellij.base.PluginLifecycleListener.appFrameCreated(PluginLifecycleListener.java:65)
Contributor 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 by reading PluginLifecycleListener.java at initProxy line 109 and appFrameCreated line 65, then reproduce the IntelliJ startup scenario described in the report. Trace the Authenticator change and verify the plugin no longer logs this uncaught exception while IDEA network calls continue to work.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, macos
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100