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Java 27 and 26: runnable demos and captured output for every JEP, plus version lanes

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Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
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asmhatre
2026-09-21 15:08:50 +00:00
committed by Claude
co-authored by Claude Sonnet 5
commit f59c1de96d
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scripts/env.sh
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#!/usr/bin/env bash
# Where the JDKs live. Override on the command line: JDK27=/path/to/jdk-27 ./scripts/run-all.sh
# Every demo that compares releases needs BOTH a JDK 26 and a JDK 27 on disk.
export JDK25="${JDK25:-/opt/jdks/jdk-25.0.4.1+1}"
export JDK26="${JDK26:-/opt/jdks/jdk26}"
export JDK27="${JDK27:-/opt/jdks/jdk27}"
# Container demos use these images (same vendor for both releases, so the only variable is the JDK version).
export IMG26="${IMG26:-amazoncorretto:26}"
export IMG27="${IMG27:-amazoncorretto:27}"
# The JVM prints "Picked up JAVA_TOOL_OPTIONS" on every launch in some sandboxes; it is noise in a transcript.
unset JAVA_TOOL_OPTIONS
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
export ROOT
OUT="$ROOT/docs/output"; mkdir -p "$OUT"; export OUT
# The 21 -> 25 lane demos (lanes.sh) also need a JDK 21.
export JDK21="${JDK21:-/opt/jdks/jdk21}"