ramackri opened a new pull request, #1122:
URL: https://github.com/apache/ranger/pull/1122
## Summary
Fixes `NoClassDefFoundError: com/google/gson/GsonBuilder` logged by the
Ranger PDP server on every plugin initialization when policies/tags are
downloaded from Admin.
The PDP assembly descriptor (`distro/src/main/assembly/pdp.xml`) uses a
strict `lib/` dependency whitelist but did not include `gson`, unlike other
Ranger plugin assemblies (KMS, Kafka, Solr, etc.). As a result,
`ranger-2.9.0-pdp.tar.gz` and the `ranger-pdp` docker image ship without
`gson-*.jar` on the classpath.
Policy download and authorization still work today because
`RangerAdminRESTClient` parses Admin REST responses with Jackson. The error is
non-fatal (`AbstractRangerAdminClient.init()` catches it and leaves `gson`
null) but is noisy and leaves file-based policy sources
(`EmbeddedResourcePolicySource`, `LocalFolderPolicySource`) without Gson
support.
## Changes
- **`distro/src/main/assembly/pdp.xml`**: add
`com.google.code.gson:gson:jar:${gson.version}` to the binaries whitelist
- **`pdp/pom.xml`**: declare explicit `gson` runtime dependency
## Test plan
- [x] Built PDP modules with the change (`mvn install -pl pdp,... -am`)
- [x] Assembly descriptor resolves gson to `gson-2.9.0`
- [x] Docker smoke test on existing `rangernw` stack (isolated PDP on port
16500):
- With `gson-2.9.0.jar` in `lib/`: health READY, `POST
/authz/v1/authorize` → ALLOW, `PolicyRefresher` downloads policies, **no
GsonBuilder ERROR**
- Without gson (pre-fix): same `NoClassDefFoundError` reproduced
- [ ] CI green
- [ ] After merge: rebuild `ranger-*-pdp.tar.gz` and verify `tar -tzf ... |
grep gson`
## Jira
https://issues.apache.org/jira/browse/RANGER-5718
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