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Add jep512 module: compact source files and instance main methods on JDK 25 and 27

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Runnable sources, broken examples and captured transcripts for the ankurm.com JEP 512 article,
including the measured launch order and a private-constructor difference between 25 and 27.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
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Claude
2026-09-24 10:32:47 +00:00
parent 6b5a918278
commit e0cb6e83e2
34 changed files with 490 additions and 0 deletions
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jep512/output/07-private-constructor-25-vs-27.txt
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$ java broken/PrivateCtor.java (OpenJDK Runtime Environment Temurin-25.0.4.1+1 (build 25.0.4.1+1-LTS))
instance main() reached through a PRIVATE zero-argument constructor
$ java broken/PrivateCtor.java (OpenJDK Runtime Environment Temurin-27+35 (build 27+35))
error: no non-private zero argument constructor found in class PrivateCtor
remove private from existing constructor or define as:
public PrivateCtor()