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)
1

Description

IntelliJ build version: 2026.1.3 IU-261.25134.95
OS: Windows 11
JDK: JetBrains s.r.o. 25.0.3
Plugin version: 3.97.6-2026.1
Additional Info: None
Parent component:

com.intellij.openapi.wm.impl.IdeRootPane[,8,8,1920x1152,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.getDockerfileActions(DockerRunLineMarkerProvider.java:108

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  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 DockerImage.java at line 57, then inspect ContainerRegistryDockerfileActionsProvider.java and DockerRunLineMarkerProvider.java around the stack-trace calls. Reproduce the IntelliJ Dockerfile action path on the reported environment and determine how a VirtualFile without a parent should be handled. Done means this path no longer raises the reported NullPointerException.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, java
Domain
devops, tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
52/100

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