Stuck at "Building: 0% [0/1000]" in "Task - Java Build Status"

I wrote a Maven plugin to generate .class files and a .jar from OpenOffice .idl files.
When i open the workspace which uses said plugin the project compiles fine and auto completion works. But when i edit one of these .idl files autocompletion stops working and i'm getting stuck at "Building: 0% [0/1000]" in "Task - Java Build Status". The goal of my Maven plugin will still finish tho, so the issue seems to occur after my plugin finishes execution.
My Maven plugin uses the "META-INF/m2e/lifecycle-mapping-metadata.xml" file to make the plugin compatible with eclipse.
I also made sure that there's no compilation if nothing actually changed. I can run mvn install as often as i want and it won't change the modification dates of any of my generated files.

It would be nice if someone could show me how to debug the task "Java Build Status" so i can figure out what's wrong.

I'll try to somehow create 2 sample projects to reproduce if there is no way to debug it myself.

Environment

• Operating System: openSUSE Leap 42.2
• JDK version: 11.0.8, 2020-07-14
• Visual Studio Code version: 1.50.0, 2020-10-07
• Java extension version: 0.72.0, [2020-12-02]

首先，使用包含所报告的 Maven 插件及其 META-INF/m2e/lifecycle-mapping-metadata.xml 文件的 workspace，重现停滞的“Java Build Status”。比较编辑 OpenOffice .idl 文件前后的行为，并使用所要求的调试路径确定自动补全停止的原因；当构建状态完成且插件运行后自动补全仍然可用时，即表示完成。