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Java 26 Probe

DeepPhe installer metadata now targets Java 26. Docker and local installer runtime tests showed that the NLP pipeline can run on Java 26 when these conditions hold:

  • Keep the installer module flags:
    • --add-exports=java.base/sun.nio.ch=ALL-UNNAMED
    • --add-opens=java.base/java.lang=ALL-UNNAMED
  • Remove or exclude log4j-1.2-api-* from the NLP runtime classpath so the legacy log4j-1.2.17.jar and Log4j 2 bridge jar are not both loaded.

The local installer probe scripts live in tests/:

./tests/run-java26-suite.sh

The most important test is the cTAKES/DeepPhe all-patient run:

./tests/ctakes-summarizer-all-patients.sh clean-classpath

It runs DefaultDeepPhe.piper over all local example patients, validates split JSON outputs, checks document counts, parses JSON, and scans logs for Java/database failure signatures.

The install4j dry-run test creates a temporary Java 26 project in test-results/; it does not edit DeepPhe-and-Launcher.install4j.

To dry-run all configured installer media ids:

I4J_BUILD_IDS='484,251,815' ./tests/install4j-java26-project-check.sh

Current Results​

Local results from 2026-07-14:

  • ./tests/ctakes-summarizer-all-patients.sh clean-classpath: passed on Java 26.
  • ./tests/ctakes-summarizer-repeat.sh: passed 3 repeated Java 26 runs.
  • ./tests/java26-runtime-smoke.sh wildcard-classpath: completed but failed log validation with the HSQLDB/Log4j IncompatibleClassChangeError, proving the classpath cleanup is required.
  • I4J_BUILD_IDS='484,251,815' ./tests/install4j-java26-project-check.sh: passed install4j dry-run for macOS, Windows, and Linux media.
  • Direct install4jc --test --faster --disable-signing --disable-notarization --build-ids=484,251,815 DeepPhe-and-Launcher.install4j: passed for the real project file.

The all-patient cTAKES/DeepPhe run processed 8 patients and 62 documents through DefaultDeepPhe.piper.

install4j 10.0.9 accepted 26/jdk-26.0.1+8 and created Java 26 runtime bundles for:

  • macos-universal-26.0.1.tar.gz
  • windows-amd64-26.0.1.tar.gz
  • linux-amd64-26.0.1.tar.gz

The installer project changes are:

  • javaMinVersion="26" and javaMaxVersion="26" on the application.
  • javaMinVersionOverride="26" and javaMaxVersionOverride="26" on the launcher.
  • JRE bundle release changed from 17/jdk-17.0.19+10 to 26/jdk-26.0.1+8.
  • The NLP install script removes log4j-1.2-api-* from .DeepPhe/lib.