microsoft / microsoft/azure-tools-for-java

[IntelliJ] Uncaught Exception java.lang.NullPointerException: Cannot invoke "com.intellij.openapi.vfs.VirtualFile.getPath()" because the return value of "com.intellij.openapi.vfs.VirtualFile.getParent()" is null

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

IntelliJ build version: 2026.1.2 IU-261.24374.151
OS: Windows 11
JDK: JetBrains s.r.o. 25.0.2
Plugin version: 3.97.6-2026.1
Additional Info: Browsing GIT history, clicked on historical version
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,0,1804x988,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.NullPointerException: Cannot invoke "com.intellij.openapi.vfs.VirtualFile.getPath()" because the return value of "com.intellij.openapi.vfs.VirtualFile.getParent()" is null
	at com.microsoft.azure.toolkit.intellij.container.model.DockerImage.<init>(DockerImage.java:57)
	at com.microsoft.azure.toolkit.intellij.containerregistry.runner.ContainerRegistryDockerfileActionsProvider.getActions(ContainerRegistryDockerfileActionsProvider.java:17)
	at com.microsoft.azure.toolkit.intellij.containerregistry.runner.DockerRunLineMarkerProvider.lambda$getDockerfileActions$2(DockerRunLineMarkerProvider.java:105)
	at com.microsoft.azure.toolkit.intellij.containerregistry.runner.DockerRunLineMarkerProvider.getDo

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First steps

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  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 with com.microsoft.azure.toolkit.intellij.container.model.DockerImage.java at line 57, then inspect the callers in ContainerRegistryDockerfileActionsProvider.java and DockerRunLineMarkerProvider.java. Reproduce the crash by browsing Git history and clicking a historical version in IntelliJ; done means that scenario no longer raises the reported NullPointerException.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
devtools
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
58/100

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