Vladislav Novikov created IGNITE-25496:
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Summary: SnapshotRestoreProcess#restoreSnapshot fails if
cacheGroupNames collection is not Serializable
Key: IGNITE-25496
URL: https://issues.apache.org/jira/browse/IGNITE-25496
Project: Ignite
Issue Type: Task
Reporter: Vladislav Novikov
Fix For: 2.18
When calling the restoreSnapshot(String name, @Nullable Collection<String>
cacheGroupNames) method with a non-serializable collection (e.g.
HashMap.keySet()), the operation fails with NotSerializableException.
This happens because the collection is being serialized during internal
communication via discovery SPI, but the method's contract does not explicitly
require the collection to be serializable. As a result, users may pass valid
Collection<String> implementations that are not Serializable, leading to
unexpected runtime errors.
Expected behavior: the method accepts any {{Collection<String>}} and internally
handles serialization safely.
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