Fix NPE when metadata is null in MilvusVectorStore #4116
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Please address the DCO commit signing. https://spring.io/blog/2025/01/06/hello-dco-goodbye-cla-simplifying-contributions-to-spring |
Signed-off-by: little_huang <[email protected]>
Thanks, @sobychacko — signed off and force-pushed. DCO is green now. |
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Title
Guard against NPE when metadata is null during distance injection
Description
Adds a null check before injecting the distance property into metadata to prevent a NullPointerException if metadata is missing from the row record. The change is intentionally minimal and does not alter existing behavior beyond avoiding the crash.
Motivation / Background
Some search results do not carry metadata (or the metadata value is null). Calling JsonObject.addProperty(...) on a null reference throws an NPE and breaks the mapping pipeline.
Changes
Add a null guard around the distance injection step to ensure we do not call addProperty(...) on a null metadata.
Behavior
No functional changes other than preventing the NPE when metadata is null.
Related issues
Fixes #4115