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: 2026.1.4 IU-261.26222.65
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[,8,8,2560x1392,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
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 DockerImage.java:57, then follow the call chain through ContainerRegistryDockerfileActionsProvider.java:17 and DockerRunLineMarkerProvider.java:105-108. Reproduce the IntelliJ Dockerfile action scenario described by the stack trace and verify that it no longer raises an uncaught NullPointerException when the VirtualFile has no parent.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- azure, docker, java
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 65/100