microsoft / microsoft/azure-tools-for-java
[IntelliJ] Uncaught Exception java.lang.NullPointerException: Cannot invoke "com.intellij.openapi.roots.ModuleRootManager.getContentRoots()" because "moduleRootManager" 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: 2025.2.2 IU-252.26199.169
OS: Windows 11
JDK: JetBrains s.r.o. 21.0.8
Plugin version: 3.96.2-2025.2
Additional Info: None
Parent component:
com.intellij.openapi.wm.impl.IdeRootPane[,8,0,1330x720,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.roots.ModuleRootManager.getContentRoots()" because "moduleRootManager" is null
at com.microsoft.azure.hdinsight.projects.util.ProjectSampleUtil.getRootOrSourceFolder(ProjectSampleUtil.java:25)
at com.microsoft.azure.hdinsight.projects.MavenProjectGenerator.generate(MavenProjectGenerator.java:52)
at com.microsoft.azure.hdinsight.projects.HDInsightModuleBuilder.moduleCreated(HDInsightModuleBuilder.java:131)
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 com.microsoft.azure.hdinsight.projects.util.ProjectSampleUtil.java:25 and follow the call chain through MavenProjectGenerator.java:52 and HDInsightModuleBuilder.java:131. Investigate why moduleRootManager is null during project generation; done means the reported NullPointerException no longer occurs in this IntelliJ build scenario.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- developer-experience
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100