redhat-developer / redhat-developer/vscode-java
Maven and Java Build Status Colliding
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Description
I'm not entirely sure when this started happening or if reporting this issue on the wrong Java extension, but I believe it has been at least a week or two, maybe longer. I use versions-maven-plugin from org.codehaus.mojo to automatically change my versions whenever I package my project. Up until recently, this has never been an issue.
The issue I'm experiencing is that I frequently (not always) run into an error while trying to package my project. What I believe is happening, is that vscode is automatically rebuilding as soon as it registers that the version has changed. The problem with this is I think is that Maven is still building, and they sometimes run into the issue of each messing with the same class file at the same time.
Example error:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-jar-plugin:2.4:jar (default-jar) on project osrs-core: Error assembling JAR: java.lang.reflect.InvocationTargetException: /Users/palidino/Desktop/BattleScape/server/osrs-core/target/classes/com/palidinodh/osrscore/model/item/ItemArray.class -> [Help 1]
2nd package attempt, no changes:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project osrs-core: Execution default-compile of goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile failed.: NullPointerException -> [Help 1]
3rd attempt:
No errors. Sometimes takes more attempts, sometimes less.
Environment
- Operating System: MacOS Catalina
- JDK version: 1.8.0_191-b12
- Visual Studio Code version: 1.42.1
- Java extension version: 0.57.0
Steps To Reproduce
- Use org.codehaus.mojo build-helper-maven-plugin and versions-maven-plugin in build plugins during package phase to update versions.
- When the versions get changed, the java build status server is activated while maven is still working.
- Sometimes get an error.
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 by reproducing the Maven package phase with build-helper-maven-plugin and versions-maven-plugin on the reported macOS, JDK, VS Code, and Java extension versions. Investigate the Java build status server activation after version changes while Maven is still running; the issue is done when repeated packaging no longer produces concurrent class-file errors.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, vscode
- Domain
- build-system, devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100