maoling opened a new pull request #1803:
URL: https://github.com/apache/zookeeper/pull/1803
- when I `mvn clean package -DskipTests` to build the `branch-3.5`, then I
git checkout to `master` branch, and build master branch, I got the following:
```
[ERROR] Failed to execute goal
> >
org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile
> > (default-compile) on project zookeeper: Fatal error
compiling:
> > java.lang.NullPointerException -> [Help 1]
```
- From this
[email](https://www.mail-archive.com/[email protected]/msg09639.html),
we have a workaround: `git clean -xdf`. The root cause is the
file(`zookeeper-server/src/main/java/org/apache/zookeeper/version/Info.java`)
generated in branch-3.5 and affected the compile in the master.
- This issue is poisonous and not easy to debug
- I backport to
[ZOOKEEPER-3423](https://github.com/apache/zookeeper/pull/980) to fix this. Now
branch-3.6 and branch-3.5 used the same way to generate version files, master
and branch-3.7 uses another new approach.
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