Guava

Recipes for migrating from Google Guava to Java standard library.

Composite Recipes

Recipes that include further recipes, often including the individual recipes below.

• Prefer Integer#compareUnsigned
• Prefer Integer#divideUnsigned
• Prefer Integer#remainderUnsigned
• Prefer Long#compareUnsigned
• Prefer Long#divideUnsigned
• Prefer Long#remainderUnsigned
• Prefer Math#addExact
• Prefer Math#clamp
• Prefer Math#multiplyExact
• Prefer Math#subtractExact
• Prefer java.util.Objects#equals
• Prefer java.util.Objects#hash
• Prefer java.util.Objects#requireNonNullElse
• Prefer java.util.Optional
• Prefer java.util.function.Predicate
• Prefer new ArrayList<>()
• Prefer new CopyOnWriteArrayList<>()
• Prefer new HashMap<>()
• Prefer new LinkedHashMap<>()
• Prefer new LinkedHashSet<>()
• Prefer new LinkedList<>()
• Prefer new TreeMap<>()
• Prefer the Java 11 standard library instead of Guava
• Prefer the Java 21 standard library instead of Guava
• Prefer the Java standard library instead of Guava
• Refaster style Guava to Java migration recipes

Recipes

• Change Guava's Predicate into java.util.function.Predicate where possible
• Prefer A.class::isInstance
• Prefer Arrays.asList(..) over Guava primitives
• Prefer Character#compare
• Prefer Collection.stream().allMatch(Predicate)
• Prefer Collection.stream().allMatch(Predicate)
• Prefer Collection.stream().anyMatch(Predicate)
• Prefer Collection.stream().filter(Predicate)
• Prefer Collection.stream().map(Function) over Collections2.transform
• Prefer Collection.stream().map(Function) over Collections2.transform
• Prefer Collection.stream().map(Function) over Iterables.transform
• Prefer Collections.newSetFromMap(new ConcurrentHashMap<>())
• Prefer Collections.newSetFromMap(new ConcurrentHashMap<>())
• Prefer Files#createTempDirectory()
• Prefer Function.compose(Function)
• Prefer Integer#compare
• Prefer Integer#parseUnsignedInt
• Prefer JDK methods for Maps and Sets of an expected size
• Prefer List.copyOf(..) in Java 10 or higher
• Prefer List.of(..) in Java 9 or higher
• Prefer Long#compare
• Prefer Long#parseUnsignedLong
• Prefer Map.copyOf(..) in Java 10 or higher
• Prefer Map.of(..) in Java 9 or higher
• Prefer Optional.stream().collect(Collectors.toSet())
• Prefer Predicate.and(Predicate)
• Prefer Predicate.isEqual(Object)
• Prefer Runnable::run
• Prefer Set.copyOf(..) in Java 10 or higher
• Prefer Set.of(..) in Java 9 or higher
• Prefer Short#compare
• Prefer String#join() over Guava Joiner#join()
• Prefer java.nio.charset.StandardCharsets
• Prefer java.util.Collections#synchronizedNavigableMap
• Prefer java.util.Collections#unmodifiableNavigableMap
• Prefer java.util.Optional#or(Supplier<? extends Optional<? extends T>>)
• Prefer java.util.Optional#orElse(null) over com.google.common.base.Optional#orNull()
• Prefer java.util.function.Function
• Prefer java.util.function.Supplier
• Prefer new ArrayList<>()
• Prefer new ArrayList<>(Collection)
• Prefer new ArrayList<>(int)
• Prefer new CopyOnWriteArrayList<>()
• Prefer new CopyOnWriteArrayList<>(Collection)
• Prefer new HashMap<>()
• Prefer new HashMap<>(Map)
• Prefer new HashSet<>()
• Prefer new LinkedHashMap<>()
• Prefer new LinkedHashMap<>(Map)
• Prefer new LinkedHashSet<>()
• Prefer new LinkedHashSet<>(Collection)
• Prefer new LinkedHashSet<>(int)
• Prefer new LinkedList<>()
• Prefer new LinkedList<>(Collection)
• Prefer new TreeMap<>()
• Prefer new TreeMap<>(Comparator)
• Prefer new TreeMap<>(SortedMap)
• Remove com.google.common.base.Optional#toJavaUtil()
• Replace Preconditions.checkNotNull taking a String message with Objects.requireNonNull
• Replace Preconditions.checkNotNull taking an Object message with Objects.requireNonNull and String.valueOf
• Replace Preconditions.checkNotNull with Objects.requireNonNull
• Replace com.google.common.base.Optional#fromJavaUtil(java.util.Optional) with argument