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$CustomizedAuthenticator@1cbb4adf].
Open
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- Dominant language
- Java
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Description
IntelliJ build version: 2026.2.0.1 IU-262.8665.337
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.7-2026.2
Additional Info: None
Parent component:
com.intellij.openapi.wm.impl.IdeRootPane[,0,0,1536x960,layout=com.intellij.openapi.wm.impl.IdeRootPane$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@1cbb4adf].
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 at PluginLifecycleListener.java, especially initProxy line 109 and appFrameCreated line 65, using the reported IntelliJ, JDK, plugin, and macOS versions. Reproduce the authenticator change and trace why it becomes null; done means the uncaught exception is addressed without causing the IDEA network calls to fail.
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
- Needs clarification
- Newbie friendliness
- 48/100