Issues

• Quirk: mutable keys in HashSet and HashMap

  dailytrack:quirks
  mperor/JavaLab#120 · Filter by author mperor opened on Nov 4, 2026

• Quirk: ternary operator unboxing NPE and numeric promotion

  dailytrack:quirks
  mperor/JavaLab#119 · Filter by author mperor opened on Nov 4, 2026

• Quirk: ConcurrentModificationException when removing in a for-each loop

  dailytrack:quirks
  mperor/JavaLab#118 · Filter by author mperor opened on Nov 4, 2026

• Quirk: Arrays.asList fixed size and primitive arrays

  dailytrack:quirks
  mperor/JavaLab#117 · Filter by author mperor opened on Nov 4, 2026

• Checked exceptions in lambdas and streams

  dailytrack:idioms
  mperor/JavaLab#116 · Filter by author mperor opened on Nov 4, 2026

• Comparator composition: comparing, thenComparing, nullsFirst and reversed

  dailytrack:idioms
  mperor/JavaLab#115 · Filter by author mperor opened on Nov 4, 2026

• Collectors in depth: groupingBy downstream, partitioningBy and toMap merge

  dailytrack:idioms
  mperor/JavaLab#114 · Filter by author mperor opened on Nov 4, 2026

• Java 22: Launch multi-file source-code programs (JEP 458)

  dailytrack:modern-java
  mperor/JavaLab#113 · Filter by author mperor opened on Nov 4, 2026

• Java 25: Key Derivation Function API (JEP 510)

  dailytrack:modern-java
  mperor/JavaLab#112 · Filter by author mperor opened on Nov 4, 2026

• Java 24: Quantum-resistant ML-KEM and ML-DSA (JEP 496, 497)

  dailytrack:modern-java
  mperor/JavaLab#111 · Filter by author mperor opened on Nov 4, 2026