Support pack expressions through JNI

[AdamGS]

Summary

Adds support for the pack expression through the JNI interface. Also ran spotless on the java bindings which moved some things around.

API Changes

Adds the matching function to the Java wrapper

Testing

basic test in the java bindings, also tested with our Iceberg work.

[codspeed-hq]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 10 improved benchmarks
❌ 3 regressed benchmarks
✅ 1494 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	compare[15]	120.4 µs	146.4 µs	-17.73%
❌	Simulation	compare[14]	118 µs	142.1 µs	-16.94%
❌	Simulation	compare[13]	116.1 µs	138.4 µs	-16.06%
⚡	Simulation	chunked_bool_canonical_into[(1000, 10)]	46.6 µs	31.7 µs	+47.25%
⚡	Simulation	chunked_varbinview_into_canonical[(1000, 10)]	213.2 µs	177.2 µs	+20.37%
⚡	Simulation	encode_varbin[(1000, 8)]	166.5 µs	145.5 µs	+14.43%
⚡	Simulation	encode_varbin[(1000, 4)]	165 µs	144.3 µs	+14.34%
⚡	Simulation	encode_varbin[(1000, 2)]	164.2 µs	143.7 µs	+14.3%
⚡	Simulation	encode_varbin[(1000, 32)]	171.3 µs	150.7 µs	+13.69%
⚡	Simulation	chunked_varbinview_canonical_into[(100, 100)]	309.6 µs	274.6 µs	+12.72%
⚡	Simulation	bitwise_not_vortex_buffer_mut[128]	275.3 ns	246.1 ns	+11.85%
⚡	Simulation	compare[5]	77.6 µs	70 µs	+10.8%
⚡	Simulation	encode_varbin[(1000, 512)]	226.4 µs	205.3 µs	+10.29%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing adamg/jni-pack (e7ff194) with develop (1e29b32)}