Claude
814c32b5ce
Basics, failure semantics on 26 vs 27, lazy collections, API across 25/26/27, preview-flag traps and a JMH read-path benchmark (jars fetched and sha1-checked, not committed). Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
27 lines
863 B
Plaintext
27 lines
863 B
Plaintext
$ javac --enable-preview --release 27 src/LazyCollections.java && java --enable-preview LazyCollections (27+35)
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list created, size 3 (nothing computed yet)
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computing list element 1
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list.get(1) = v1
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list.get(1) again = v1
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map created, size 3 (nothing computed yet)
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computing map value for bb
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map.get("bb") = 2
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map.get("bb") again = 2
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set created
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testing 2
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set.contains(2) = true
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testing 1
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set.contains(1) = false
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set.contains(9) = false
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testing 3
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set.size() = 2
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$ javac --enable-preview --release 26 src/LazyCollections.java (26.0.2.1+1)
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src/LazyCollections.java:18: error: cannot find symbol
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Set<Integer> set = Set.ofLazy(Set.of(1, 2, 3), n -> { System.out.println(" testing " + n); return n > 1; });
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^
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symbol: method ofLazy(Set<Integer>,(n)->{ Sys[...] 1; })
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location: interface Set
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1 error
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exit=1
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