[GitHub] [zookeeper] maoling opened a new pull request #1803: Backport ZOOKEEPER-3423 to Branch 3.5

[GitBox <gi...@apache.org>]

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/user@zookeeper.apache.org/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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