chore(deps): Bump com.cedarsoftware:java-util from 4.81.0 to 4.83.0

[dependabot]

Bumps com.cedarsoftware:java-util from 4.81.0 to 4.83.0.

Changelog

Sourced from com.cedarsoftware:java-util's changelog.

4.83.0 - 2025-01-18

• PERFORMANCE: LRUCache (THREADED strategy) - Major performance improvements reducing overhead from ~5x to ~1.4x vs ConcurrentHashMap
  • Replaced System.nanoTime() with logical clock (AtomicLong counter) for LRU ordering - ~5ns vs ~25ns per operation
  • Simplified probabilistic timestamp updates using timestamp low bits - eliminates atomic/ThreadLocal operations on most accesses
  • Removed extra get() call in put() since Node creation is now cheap with logical clock
  • Added amortized eviction (batch every 16 inserts) to spread eviction cost across operations
• BUG FIX: LRUCache - Fixed hard cap enforcement to guarantee memory bounds under high-throughput scenarios
  • Split eviction into tryEvict() (skippable) and forceEvict() (blocks until complete)
  • Hard cap (2x capacity) now uses LockSupport.parkNanos(1000) for efficient spinning with low CPU usage
  • Fixes issue where rapid inserts could exceed memory bounds when eviction couldn't keep up
• CHANGE: CaseInsensitiveMap - Default cache changed from ConcurrentHashMap to LRUCache (THREADED strategy)
  • Provides true LRU eviction (hot entries preserved) vs random eviction with ConcurrentHashMap
  • Guarantees bounded memory (max 2x capacity) vs loose bounds with ConcurrentHashMap
  • Performance is equivalent or better in benchmarks
  • Users can still use replaceCache() to configure ConcurrentHashMap if desired

4.82.0 - 2025-01-17

• BUG FIX: TypeUtilities - Fixed WildcardType bounds array mutation bug
  • External WildcardType implementations return internal arrays from getUpperBounds()/getLowerBounds()
  • These arrays were being modified in-place during resolution, corrupting the original type
  • Fix: Clone arrays from external implementations before modification; skip cloning for internal WildcardTypeImpl
• BUG FIX: TypeUtilities - Fixed unsafe cast for method-level TypeVariables
  • TypeVariable can be declared on Method or Constructor, not just Class
  • Casting getGenericDeclaration() to Class would throw ClassCastException for method-level type variables
  • Fix: Check declaration type and return first bound for non-class type variables
• PERFORMANCE: TypeUtilities - Added array class cache to avoid repeated Array.newInstance() allocations in getRawClass()
• PERFORMANCE: TypeUtilities - Use IdentitySet instead of HashSet for cycle detection (reference equality is sufficient and faster)
• IMPROVED: TypeUtilities - Simplified hashCode() implementations using standard 31 * result pattern instead of EncryptionUtilities.finalizeHash()
• IMPROVED: TypeUtilities.WildcardTypeImpl - Constructor now takes ownership of arrays without cloning (internal class only)
• IMPROVED: DeepEquals - Fixed Javadoc formatting using {@code} blocks for proper HTML rendering of generic types
• DEPRECATED: LRUCache(int capacity, int cleanupDelayMillis) - The cleanupDelayMillis parameter is no longer used; use LRUCache(int) instead
• BUILD: Added @SuppressWarnings annotations to eliminate compile warnings across multiple classes:
  • CaseInsensitiveMap, ClassUtilities, ConcurrentNavigableSetNullSafe, ConcurrentSet
  • MultiKeyMap, ReflectionUtils, TTLCache, UrlUtilities, MapConversions
• BUILD: Removed unused regex timeout methods from DateUtilities
• BUILD: Cleaned up unused code in ObjectConversions
• PERFORMANCE: MultiKeyMap - Significant hot path optimizations using Class identity checks
  • valueHashCode() - Reordered type checks to handle Integer/Long/Double first; uses Class identity (==) instead of instanceof for common types (55% CPU reduction in JFR profiling)
  • computeElementHash() - Added Class identity fast path for String/Integer/Long/Double, skipping 4+ instanceof checks for 75% of typical key elements
  • flattenKey() - Added fast path at method entry for String/Integer/Long/Double keys
  • flattenObjectArrayN() - Skip array/collection checks for known simple types
  • isArrayOrCollection() - Added Class identity short-circuit for common simple types
  • Result: Cedar MultiKeyMap win rate vs Apache Commons Collections improved from ~60% to ~71% in performance benchmarks, while providing thread-safety, null key/value support, unlimited key count, and value-based numeric equality that Apache lacks
• PERFORMANCE: ClassValueSet - Optimized with Class identity checks
  • contains() and remove() now use o.getClass() == Class.class instead of instanceof
  • clear() no longer creates unnecessary HashSet copy before invalidating cache
• NEW: IdentitySet<T> - High-performance generic Set using object identity (==) instead of equals()
  • Lightweight replacement for Collections.newSetFromMap(new IdentityHashMap<>())
  • Extends AbstractSet<T> and implements full Set<T> interface including iterator()
  • Uses open addressing with linear probing for excellent cache locality

... (truncated)

Commits

• 357a0aa Update version references and temporarily exclude test
• 1d9af20 Use resetCacheToDefault() in test cleanup methods
• 8322996 Optimize LRUCache performance and make it default for CaseInsensitiveMap
• e719110 Change BigInteger/BigDecimal to Map to store string values
• 9881be0 Fix Atomic → Map to store primitive values, not wrappers
• 1d3d8e0 Add comprehensive BitSet conversions to Converter
• f5537bc Remove json-io round-trip skips for BitSet, AtomicIntegerArray, AtomicLongArr...
• 18bc60b Enhance Enum conversions and improve EnumSet handling in Converter
• e4042f5 Fix flaky test: increase buffer for concurrent cache measurement race
• e6681d6 Release 4.82.0 - Update version numbers and release date
• Additional commits viewable in compare view

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