[mperor]

Second Composite pattern example, next to AbilityTreeCompositeTest: a folder/file tree where Folder (composite) and File (leaf) share AddressablePath, and Folder.find(Predicate<String>) searches the whole tree recursively.

• Revived from a stale branch (Jan 2025), rebased onto current master
• Replaced System.out.println with assertions: matching folder + its files, files only, no matches
• Renamed leftover complexTag lambda parameter to folder

Quiz: find adds matching direct children first and only then recurses — what order would you get for name -> name.startsWith("main"), and how would you change find to return a depth-first (pre-order) listing?

[github-actions]

Test Results

258 tests  +1   255 ✅ +1   4s ⏱️ -1s
 77 suites +1     3 💤 ±0 
 77 files   +1     0 ❌ ±0 

Results for commit 5446dd5. ± Comparison against base commit d3b4ee3.

This pull request skips 1 and un-skips 1 tests.

pl.mperor.lab.java.design.pattern.creational.singleton.SingletonTest ‑ testLazyInitialized()

pl.mperor.lab.java.design.pattern.creational.singleton.SingletonTest ‑ testSerializationSafe()