Adds Multimap support to JAVA FnApi#36218

Merged

scwhittle merged 13 commits intoapache:masterfrom

acrites:multimap-streaming

Oct 28, 2025

Commits on Sep 16, 2025

Changes multimap state key() tests to not care about order. There is no guarantee on the order keys are returned. Also fixes a couple warnings from other FnApi tests.
acrites
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Commits on Sep 22, 2025

Commits on Oct 1, 2025

Changes multimap entries() iterable to put values for the same key from the backend and local adds together. Also needed to make maybePrefetchable public.
acrites
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Merge branch 'multimap-streaming' of https://github.com/acrites/beam into multimap-streaming
acrites
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Commits on Oct 20, 2025

Adds a test that prefetching multimap entries results in a StateRequest sent across FnApi.
acrites
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Commits on Oct 24, 2025

Adds an environment capability for multimap state and sets in for the java sdk.
acrites
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