feat: bake Eclipse Temurin OpenJDK 11 into the image - #22
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The IBKR Client Portal Gateway (clientportal.gw) needs Java; its netty-4.1.15 reflectively accesses java.nio.DirectByteBuffer, which is fatal on Java 17+ (bookworm's only apt OpenJDK) but a harmless warning on 11. Pin Temurin 11.0.31+11 from Adoptium's GitHub releases, arch-selected via dpkg --print-architecture with a per-arch SHA-256 gate (matching the repo's pinned/integrity-gated build convention). update-alternatives symlinks java/javac into /usr/bin (already on PATH), so only JAVA_HOME gets an ENV — the load-bearing final PATH stays untouched. - Dockerfile: new section 5 (renumbered tail 5/6/7 -> 6/7/8) - Makefile: smoke asserts Temurin-11.0.31 + JAVA_HOME wiring - .devcontainer/CLAUDE.md: pinned-artifact inventory + do-NOT-bump-to-17 invariant Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Follow-up to #22, which baked Temurin OpenJDK 11 but left it invisible in the docs and the live inventory the in-container Claude is pointed at. - seed-claude.sh: list the JVM in the generated ENVIRONMENT.md (## Languages), capturing java's stderr-only --version output (the shared `ver` helper drops stderr, which would have rendered the line blank). - README.md: add "OpenJDK 11 (Temurin)" to the Languages highlight; fix the WSL clone example path that #21's rename missed (claude-sandbox -> claude-devcontainer). - CHANGELOG.md: populate the empty [Unreleased] with the JDK addition and the repo rename. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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What
Bakes Eclipse Temurin OpenJDK 11.0.31+11 into the dev container image so it survives
make rebuild/docker compose down(live installs land outside the persistent volumes and get wiped).Why Java 11 specifically (do NOT bump to 17+)
The IBKR Client Portal Gateway (
clientportal.gw) needs Java. Its bundlednetty-4.1.15reflectively accessesjava.nio.DirectByteBuffer— a harmless warning on Java 11, but a fatalInaccessibleObjectExceptionon Java 17+ (Debian bookworm's only apt OpenJDK), which would otherwise force--add-opensflags inrun.sh.How
Dockerfile— new section 5 (renumbered tail 5/6/7 → 6/7/8). Pulls the JDK from Adoptium's GitHub releases, arch-selected viadpkg --print-architecture(the repo's house idiom) with a per-arch SHA-256 gate, matching the pinned/integrity-gated build convention.update-alternativessymlinksjava/javacinto/usr/bin(already on PATH), so onlyJAVA_HOMEgets anENV— the load-bearing finalPATHline is untouched.Makefile(smoke) — assertsjava -versionreportsTemurin-11.0.31and$JAVA_HOMEresolves correctly..devcontainer/CLAUDE.md— adds the JDK to the pinned-artifact inventory and a dedicated "do NOT bump to 17+" invariant.Validation
make lint— shellcheck + hadolint + yamllint +compose configall green./usr/lib/jvm/jdk-11.0.31+11,java -version→Temurin-11.0.31+11,javac 11.0.31.🤖 Generated with Claude Code