microsoft / microsoft/azure-tools-for-java

[IntelliJ] Uncaught Exception java.lang.Throwable: Slow operations are prohibited on EDT. See SlowOperations.assertSlowOperationsAreAllowed javadoc.

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

IntelliJ build version: 2025.3 Beta IU-253.28294.169
OS: Windows 11
JDK: JetBrains s.r.o. 21.0.8
Plugin version: 3.96.3-2025.3
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,7,7,1536x816,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=null, throwable=java.lang.Throwable: Slow operations are prohibited on EDT. See SlowOperations.assertSlowOperationsAreAllowed javadoc.
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:375)
<REDACTED: Generic Secret>
	at com.microsoft.azure.toolkit.intellij.legacy.function.runner.core.FunctionUtils.loadAppSettingsFromSecurityStorage(FunctionUtils.java:131)
	at com.microsoft.azure.toolkit.intellij.legacy.webapp.runner.webappconfig.WebAppConfiguration.lambda$readExternal$1(WebAppConfiguration.java:94)
	at com.microsoft.azure.toolkit.intellij.legacy.webapp.runner.webappconfig.WebAppConfiguration.readExternal(WebAppConfiguration.java:94)

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Research direction

Start in FunctionUtils.java at loadAppSettingsFromSecurityStorage (line 131), then follow WebAppConfiguration.readExternal (line 94). Check how security-storage access is reached during IntelliJ state loading and reproduce the reported startup path. Done means the stack trace no longer reports that slow operations are prohibited on the EDT.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
desktop
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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