Fixing conditional processor mutability bugs #134936
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* upstream/main: (43 commits) Unmute testAckedIndexing to see if it still fails on main (elastic#134682) Silence time zone ID deprecation warning for JDK 25 due to log4j2 bug. (elastic#134719) Adding a getUnmodifiableSourceAndMetadata() method to IngestDocument (elastic#134816) Mark the create-index-from-source action as publicly available on Serverless (elastic#134953) ESQL: Rename command from INLINESTATS to INLINE STATS (elastic#134827) Document multi index query support for simplified retrievers (elastic#134980) [ML] Fix YAMl test to use correct query parameter type (elastic#134999) [Transform] Wait for PIT to close (elastic#134955) Add XPath to XmlUtils (elastic#134923) Fixing conditional processor mutability bugs (elastic#134936) [Transform] Lower loglevel of 3 transform-related error messages from ERROR to WARN (elastic#134985) Unmute pattern text tests. (elastic#134981) Integrate weights into simplified RRF retriever syntax (elastic#132680) Mute org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT test {csv-spec:stats.CountDistinctWithConditions} elastic#134993 Update periodic java-ea build to test java 26 pre-release (elastic#134983) Mute org.elasticsearch.xpack.esql.ccq.MultiClusterSpecIT test {csv-spec:stats.CountDistinctWithConditions} elastic#134984 Fix and unmute testIndexSettingProviderPrivateSetting (elastic#134861) Add missing common cat params (elastic#134870) Support querying multiple indices with the simplified RRF retriever (elastic#134822) Allow including semantic field embeddings in _source (elastic#134717) ...
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ConditionalProcessor attempts to prevent users from modifying the underlying IngestDocument data from within an "if" script. It wraps Maps, Lists, and byte arrays with unmodifiable versions. But it is also possible to have Sets in the data (and many of our integrations do). We do not ensure that Sets are unmodifiable. This PR fixes that loophole, preventing users from accidentally modifying IngestDocument data in a ConditionalProcessor.