sanrajbandre opened a new pull request, #4050:
URL: https://github.com/apache/ambari/pull/4050
## What changes were proposed in this pull request?
Rolling restart batches could fail to chain because the request metadata was
not parsed from the Ambari API response.
**Root cause**
`ExecutionScheduleManager.convertToBatchRequestResponse()` used
`Response#getEntity()`. With Jakarta/Jersey this often returns `null` (or an
unreadable stream), so `"Requests.id"` / `"request_status"` were not parsed.
**Minimal fix (one line)**
```diff
---
a/ambari-server/src/main/java/org/apache/ambari/server/scheduler/ExecutionScheduleManager.java
+++
b/ambari-server/src/main/java/org/apache/ambari/server/scheduler/ExecutionScheduleManager.java
@@ -... +...
- String responseString = (String) clientResponse.getEntity();
+ String responseString = clientResponse.readEntity(String.class);
```
## How was this patch tested :
- Local env: macOS (Apple Silicon M1), JDK 17.
## Targeted unit tests:
```diff
mvn -pl ambari-server \
-Dtest='**/scheduler/**/*Test.java' \
-DfailIfNoTests=false -DforkCount=1 -DreuseForks=false \
org.apache.maven.plugins:maven-surefire-plugin:test
```
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