[java] Add `linux-x64` implementation of in process Copilot CLI - #2259

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edburns/1917-java-embed-rust-cli-runtime-dd-3042873-seeking-review

Commits on Aug 5, 2026

docs(java): add ADR-007 native runtime bundling strategy

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Potential fix for pull request finding

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Update adr-007 to address decision to not use Panama
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Select Option 2 and Option 1
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GUTDODP
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Add ignorance reduction plan for Java SDK native runtime embedding (#1917)

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Get answers to pre-traversal questions in section 3.15.
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GUTDODP
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Phase 3, 3.1 WIP
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Rethink answer for 3.1.
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Working through 3.1 and 3.2
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Resolve 3.1 and 3.2: hybrid reactor structure + npm pack binary acquisition
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GUTDODP
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Expand step 4.6 into 4.6a/b/c for hybrid reactor restructure
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3.3 resolution: interface + direct instantiation + com.github.copilot.ffi
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Spike 3.4: JNA callback threading with Rust DLL
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3.4 resolution: QueueInputStream + MR-JAR virtual thread reader
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GUTDODP
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3.5.1 resolution: RuntimeConnection sealed class hierarchy
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3.5.2 resolution: FfiRuntimeHost parallel to CliServerManager
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3.5.3 resolution: JsonRpcClient.fromStreams() + QueueInputStream + FfiOutputStream
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GUTDODP
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GUTDODP
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GUTDODP
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Spike 3.6 darwin-arm64
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Make spikes into maven projects
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3.6 Windows x64
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Document 3.6 platform detection resolution
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GUTDODP
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Resolve native runtime extraction caching strategy
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Document JNA GraalVM callback spike

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GUTDODP
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Expand Question 3.9 to cover all five C ABI parameters

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Correct ABI table: argv_json example, host_start blocking, nullable params, one-lib-per-process
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3.9: C ABI parameter semantics spike and resolution
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3.10: Error handling and diagnostics resolution
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GUTDODP
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spike-3-11: InProcess E2E transport on win32-x64 + 3.11 Resolution
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GUTDODP
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GUTDODP
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GUTDODP
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3.12 Resolution + Phase 4 linux-x64-first DRI note
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Provide resolutions for 3.13 and 3.14
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GUTDODP
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Fix 6 LLM-friendliness inconsistencies in Phase 4 implementation steps
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GUTDODP
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docs(plan): normalize linux-x64-only invariant wording
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docs(plan): add Phase 4 implementation sequence diagram
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docs(plan): include all pending modified files
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docs(plan): fix Mermaid parse in Phase 4 sequence diagram
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docs(plan): fix second Mermaid parse error in phase 4 diagram
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docs(plan): rewrite phase 4 sequence diagram from first principles
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Refactors
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GUTDODP
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Prompt to create skill to create issues
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GUTDODP
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dd-dd-3039145-cast-phase-4-into-issues
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dd-3039145-cast-plan-into-issues
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GUTDODP
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[Java] Add PlatformDetector and NativeRuntimeLoader for native binary extraction and caching (tasks 4.2 + 4.3) (#2157)

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shepherd-tasks-20260730-0204
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GUTDODP
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Revert "[Java] Add PlatformDetector and NativeRuntimeLoader for native binary extraction and caching (tasks 4.2 + 4.3) (#2157)"
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GUTDODP
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[Java] Task 4.1: Convert single-module java/ into multi-module Maven reactor (#2170)

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dd-3039924-Agentic run 02
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shepherd-tasks-20260730-2115
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[Java] Add `PlatformDetector` for runtime classifier selection (#2173)

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shepherd-tasks-20260730-2134
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dd-3039924-agentic-run-02
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chore: remove shepherd-task JSON session files flagged by secret scanning

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[Java] Embed Rust CLI runtime 4.3: NativeRuntimeLoader — native binary extraction and caching (#2175)

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GUTDODP
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GUTDODP
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[Java] Embed Rust CLI runtime 4.4: JNA binding interface and implementation (#2230)

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[Java] Add in-process FFI runtime host lifecycle and stream transport primitives (#2233)

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[Java] Add RuntimeConnection hierarchy and in-process transport dispatch (#2234)

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[Java] Add copilot-native module producing linux-x64 classifier JAR for runtime.node (#2236)

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Java: Add InProcess FFI transport E2E test (task 4.8) (#2238)

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ci(java): add linux in-process Java SDK workflow job

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ci: add continue-on-error to java-sdk-inprocess job

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ci: remove continue-on-error from java-sdk-inprocess job

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ci: restore continue-on-error for java-sdk-inprocess job

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shepherd output shepherd-tasks-20260803-1550
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GUTDODP
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token analysis
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Scrub secrets
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GUTDODP
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Redact data
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GUTDOP
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Remove prompts
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Suppress CodeQL weak-crypto alert for RFC 6455 WebSocket handshake SHA-1

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ci(java): remove leaked COPILOT_SDK_DEFAULT_CONNECTION from step env

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Fix CodeQL relative-path-command alerts in test code

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Fix CodeQL container-contents-never-accessed alerts

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Fix CodeQL always-true comparison and string identity alerts

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Add CodeQL suppression for intentional string identity comparison

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Replace identity comparison with .equals() for ABSENT_SENTINEL

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Commits

Commits on Aug 5, 2026