microsoft / microsoft/azure-tools-for-java
[IntelliJ] Uncaught Exception Operator called default onErrorDropped reactor.core.Exceptions$ErrorCallbackNotImplemented: java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 10000ms in 'subscribeOnCallable' (and no fal
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- Dominant language
- Java
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- 262
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- 185
- Avg merge
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Description
IntelliJ build version: 2026.1 IU-261.22158.277
OS: Mac OS X
JDK: JetBrains s.r.o. 25.0.2
Plugin version: 3.97.3-2026.1
Additional Info: None
Parent component:
javax.swing.JRootPane[,0,0,800x650,invalid,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=com.intellij.ui.ToolbarServiceImpl$setTransparentTitleBar$customBorder$1@604b757c,flags=16777673,maximumSize=,minimumSize=,preferredSize=]
Error message:
IdeaLoggingEvent[message=Operator called default onErrorDropped, throwable=reactor.core.Exceptions$ErrorCallbackNotImplemented: java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 10000ms in 'subscribeOnCallable' (and no fallback has been configured)
Caused by: java.util.concurrent.TimeoutException: Did not observe any item or terminal signal within 10000ms in 'subscribeOnCallable' (and no fallback has been configured)
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
No source file, test, or entry point is named. Start with the IntelliJ, OS, JDK, and plugin versions and the timeout log, then locate the component producing the subscribeOnCallable error; done means reproducing the exception and identifying a verified fix or a documented cause.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- azure, java
- Domain
- cloud, devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100