celinayk opened a new pull request, #5104:
URL: https://github.com/apache/zeppelin/pull/5104
### What is this PR for?
This PR improves error stream output filtering in the `ProcessData` class to
exclude download-related messages. Currently, Maven/npm download progress
information clutters the error stream during integration tests, making it
difficult to identify actual errors.
This change filters out download messages (e.g., "Downloading:", "Progress:
45%", "1024/2048 KB") while preserving real error messages.
### What type of PR is it?
Improvement
### Todos
* [x] - Add DOWNLOAD_PATTERNS array with 6 regex patterns
* [x] - Implement isDownloadMessage() method
* [x] - Apply filtering logic in buildOutputAndErrorStreamData()
### What is the Jira issue?
[ZEPPELIN-6322](https://issues.apache.org/jira/browse/ZEPPELIN-6322)
### How should this be tested?
### Screenshots (if appropriate)
### Questions:
* Does the license files need to update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
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