Brian Goetz questions

Brian Goetz answers

• How many subclasses can be declared for a sealed class?
• Does having a wrapper object return value (e.g. Integer) cause auto boxing in Java?
• Why synchronized block is giving wrong answer?
• Functional composition of Optionals
• Bytecode transforming record class to be mutable
• Java Pattern Variable Scope
• Trying to do a minor refactor using lambdas in Java
• Understanding O(1) vs O(n) Time Complexity Intuitively
• Template parameter difference between Collectors.toList and Stream.toList
• Special Identifiers: serialVersionUID and serialPersistentFields