backport https://github.com/github/copilot-sdk/pull/1483

[edburns]

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[edburns]

20260528-1504-job-logs.txt

[Copilot]

Pull request overview

This PR backports upstream Java SDK changes from github/copilot-sdk#1483, adding new session/request options, JDK 25 multi-release JAR executor behavior, and related CI/test/documentation updates.

Changes:

• Adds new session/message configuration fields such as reasoning summaries, plugin directories, large tool output, MCP OAuth token storage, MCP Apps, and display prompts.
• Introduces an internal executor provider with a JDK 25 virtual-thread MR-JAR overlay and owned-executor shutdown handling.
• Updates tests, CI workflow, version metadata, README content, and standalone/monorepo comparison tooling.

Show a summary per file

File	Description
pom.xml	Bumps version and adds Failsafe/MR-JAR build support for JDK 25 overlay testing.
src/main/java/com/github/copilot/CopilotClient.java	Adds default executor strategy, owned executor shutdown, cloud session ID handling, and MCP token defaults in EMPTY mode.
src/main/java/com/github/copilot/CopilotSession.java	Threads displayPrompt into send requests and adds reasoning-summary model switching.
src/main/java/com/github/copilot/InternalExecutorProvider.java	Adds baseline internal executor provider using the common pool.
src/main/java25/com/github/copilot/InternalExecutorProvider.java	Adds JDK 25 MR-JAR executor provider using virtual threads.
src/main/java/com/github/copilot/SessionRequestBuilder.java	Maps new session config fields into create/resume requests.
src/main/java/com/github/copilot/rpc/SessionConfig.java	Adds new public session configuration fields and renames config directory accessors.
src/main/java/com/github/copilot/rpc/ResumeSessionConfig.java	Adds matching resume configuration fields and renamed config directory accessors.
src/main/java/com/github/copilot/rpc/CreateSessionRequest.java	Adds new create-session wire fields while preserving configDir JSON name.
src/main/java/com/github/copilot/rpc/ResumeSessionRequest.java	Adds new resume-session wire fields while preserving configDir JSON name.
src/main/java/com/github/copilot/rpc/MessageOptions.java	Adds displayPrompt to message options and cloning.
src/main/java/com/github/copilot/rpc/SendMessageRequest.java	Adds the displayPrompt wire field.
src/main/java/com/github/copilot/rpc/LargeToolOutputConfig.java	Adds DTO for large tool output settings.
src/main/java/com/github/copilot/rpc/SessionUiCapabilities.java	Adds MCP Apps capability exposure.
src/main/java/com/github/copilot/rpc/CopilotClientOptions.java	Updates executor Javadoc for SDK default strategy and ownership.
src/test/java/com/github/copilot/SessionRequestBuilderTest.java	Adds request-building coverage for new session fields.
src/test/java/com/github/copilot/InternalExecutorProviderTest.java	Adds baseline executor-provider and user executor ownership tests.
src/test/java/com/github/copilot/InternalExecutorProviderProbe.java	Adds child-JVM probe for packaged MR-JAR executor selection.
src/test/java/com/github/copilot/InternalExecutorProviderIT.java	Adds Failsafe integration test for packaged MR-JAR behavior.
src/test/java/com/github/copilot/CreateSessionReKeyEntryTest.java	Updates create-session mismatch tests to expect rejection and cleanup.
src/test/java/com/github/copilot/CopilotSessionTest.java	Updates config-directory setter usage.
src/test/java/com/github/copilot/ConfigCloneTest.java	Adds clone assertions for new config fields and renamed accessor.
scripts/compare-standalone-to-monorepo.sh	Adds README comparison support.
README.md	Updates installation, runtime/development requirements, versions, and monorepo links.
jbang-example.java	Updates the JBang dependency version.
.github/workflows/build-test.yml	Adds JDK 17/25 matrix behavior and MR-JAR test flow.
.github/actions/test-report/action.yml	Adds summary title input, Failsafe report glob, and generated-package prefix update.

Copilot's findings

• Files reviewed: 27/27 changed files
• Comments generated: 5