You need to set the project attribute using the semantic key openinference.project.name (or SEMRESATTRS_PROJECT_NAME), not just "project". For Java, use:
```
Resource resource = Resource.getDefault()
.merge(Resource.create(Attributes.of(
AttributeKey.stringKey("service.name"), "demoapp",
AttributeKey.stringKey("openinference.project.name"), "my-project"
)));
```
or, if using the OpenInference semantic conventions:
```
Resource resource = Resource.getDefault()
.merge(Resource.create(Attributes.of(
AttributeKey.stringKey("service.name"), "demoapp",
AttributeKey.stringKey(SEMRESATTRS_PROJECT_NAME), "my-project"
)));
```
This ensures Phoenix groups traces under "my-project" instead of the default project, as documented in the official examples and SDK references.
Would you like more detail or a full example?
Sources:
- <https://github.com/Arize-ai/phoenix/blob/main/docs/section-sdk-api-reference/openinference-sdk/openinference-java.md|openinference-java.md (see Resource config)>
- <https://github.com/Arize-ai/openinference/blob/main/java/examples/spring-ai-example/src/main/java/com/arize/openinference/examples/SpringAI.java|SpringAI.java example>
- <https://arize.com/docs/phoenix/sdk-api-reference/openinference-sdk#芦R1h8qfegqnetrnb禄|SDK API Reference>
