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bufferedreader: read a file line by line module (BufferedReader vs Scanner vs Files.lines vs readAllLines on a 1 GB file; heap at -Xmx64m, timings, read-call counts, one-huge-line OOM, charset/BOM/line-terminator pitfalls, Scanner swallowing IOException), 10 contract tests

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b3pDoGLiWk6LLBeHjW
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Claude
2026-11-15 01:20:37 +05:30
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bufferedreader/output/01-environment.txt
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$ uname -sr
Linux 6.18.44-fc-v470
$ nproc
2
$ java -version
openjdk version "25.0.5" 2026-10-20 LTS
OpenJDK Runtime Environment Temurin-25.0.5+8 (build 25.0.5+8-LTS)
OpenJDK 64-Bit Server VM Temurin-25.0.5+8 (build 25.0.5+8-LTS, mixed mode, sharing)
$ free -m (before)
total used free shared buff/cache available
Mem: 8024 615 6866 16 784 7409