The Java Version Almanac
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New APIs in Java 23

Comparing Java 23 (23-ea+26-2269-open) with Java 19 (19.0.2+7-tem).

Element Modification
java.base
    java.io
      BufferedInputStream
        • - final
        • + sealed
        ObjectOutputStream.PutField
          • + forRemoval
          PushbackInputStream
            SequenceInputStream
              java.lang.constant
                ConstantDescs
                  ClassDesc
                    MethodHandleDesc
                      MethodTypeDesc
                        • + abstract
                        java.lang.foreign
                          ValueLayout.OfAddress
                          • removed preview
                          Addressable
                          • - preview
                          • + abstract
                          • + abstract
                          • + abstract
                          asVariadic(MemoryLayout...)
                          • + abstract
                          • + abstract
                          equals(Object)
                          firstVariadicArgumentIndex()
                          hashCode()
                          • + abstract
                          • + abstract
                          toString()
                          • - extends AbstractLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + sealed
                          equals(Object)
                          hashCode()
                          isStruct()
                          isUnion()
                          • + abstract
                          toString()
                          withBitAlignment(long)
                          • + abstract
                          • - preview
                          downcallHandle(Addressable, FunctionDescriptor)
                          downcallHandle(FunctionDescriptor)
                          downcallType(FunctionDescriptor)
                          upcallStub(MethodHandle, FunctionDescriptor,...
                          upcallType(FunctionDescriptor)
                          MemoryAddress
                          • - preview
                          • - preview
                          bitAlignment()
                          bitOffset(MemoryLayout.PathElement...)
                          bitOffsetHandle(MemoryLayout.PathElement...)
                          bitSize()
                          • + abstract
                          • + abstract
                          • + abstract
                          isPadding()
                          paddingLayout(long)
                          • + abstract
                          • + abstract
                          structLayout(MemoryLayout...)
                          unionLayout(MemoryLayout...)
                          valueLayout(Class, ByteOrder)
                          • + abstract
                          withBitAlignment(long)
                          • - implements Addressable
                          • - preview
                          address()
                          allocateNative(MemoryLayout, MemorySession)
                          allocateNative(long, MemorySession)
                          allocateNative(long, long, MemorySession)
                          • + abstract
                          • + abstract
                          get(ValueLayout.OfAddress, long)
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          getAtIndex(ValueLayout.OfAddress, long)
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          getUtf8String(long)
                          ofAddress(MemoryAddress, long, MemorySession)
                          segmentOffset(MemorySegment)
                          session()
                          set(ValueLayout.OfAddress, long, Addressable)
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          setAtIndex(ValueLayout.OfAddress, long,...
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          • + abstract
                          setUtf8String(long, String)
                          MemorySession
                          • - preview
                          allocate(ValueLayout.OfAddress, Addressable)
                          allocate(ValueLayout.OfByte, byte)
                          allocate(ValueLayout.OfChar, char)
                          allocate(ValueLayout.OfDouble, double)
                          allocate(ValueLayout.OfFloat, float)
                          allocate(ValueLayout.OfInt, int)
                          allocate(ValueLayout.OfLong, long)
                          allocate(ValueLayout.OfShort, short)
                          allocateArray(MemoryLayout, long)
                          allocateArray(ValueLayout.OfByte, byte...)
                          allocateArray(ValueLayout.OfChar, char...)
                          allocateArray(ValueLayout.OfDouble, double...)
                          allocateArray(ValueLayout.OfFloat, float...)
                          allocateArray(ValueLayout.OfInt, int...)
                          allocateArray(ValueLayout.OfLong, long...)
                          allocateArray(ValueLayout.OfShort, short...)
                          allocateUtf8String(String)
                          implicitAllocator()
                          newNativeArena(MemorySession)
                          newNativeArena(long, MemorySession)
                          newNativeArena(long, long, MemorySession)
                          • - extends AbstractLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + sealed
                          • + abstract
                          • + abstract
                          equals(Object)
                          • + abstract
                          hashCode()
                          • + abstract
                          toString()
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - preview
                          libraryLookup(Path, MemorySession)
                          libraryLookup(String, MemorySession)
                          lookup(String)
                          VaList.Builder
                          VaList
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends ValueLayout
                          • - final
                          • - preview
                          • + abstract
                          • + extends Object
                          • + implements ValueLayout
                          • + sealed
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          • - extends AbstractLayout
                          • - preview
                          • + abstract
                          • + extends Object
                          arrayElementVarHandle(int...)
                          • + abstract
                          equals(Object)
                          hashCode()
                          • + abstract
                          toString()
                          withBitAlignment(long)
                          • + abstract
                          • + abstract
                          java.lang.invoke
                            ClassSpecializer.Factory
                            ClassSpecializer.SpeciesData
                            MethodHandles
                              • - preview
                              • - preview
                              • - preview
                              • - preview
                              • - preview
                              memorySegmentViewVarHandle(ValueLayout)
                              • - preview
                              VarHandle
                                • - final
                                java.lang.module
                                  ModuleDescriptor.Exports
                                    ModuleDescriptor.Opens
                                      ModuleDescriptor.Requires
                                        ModuleDescriptor
                                          java.lang.reflect
                                            Executable
                                              • + abstract
                                              Field
                                                Parameter
                                                  Member
                                                    java.lang.runtime
                                                      • - preview
                                                      java.lang
                                                        Character.UnicodeBlock
                                                          Character
                                                            Class
                                                              Compiler
                                                              FdLibm.Cbrt
                                                              FdLibm.Hypot
                                                              FdLibm.Pow
                                                              Float
                                                                • - preview
                                                                Math
                                                                  ModuleLayer.Controller
                                                                    Module
                                                                      StrictMath
                                                                        • + implements Appendable
                                                                        • + implements Appendable
                                                                        String
                                                                          • + deprecated
                                                                          • + forRemoval
                                                                          ThreadGroup
                                                                            allowThreadSuspension(boolean)
                                                                            resume()
                                                                            stop()
                                                                            suspend()
                                                                            Thread
                                                                              countStackFrames()
                                                                              • - preview
                                                                              • - preview
                                                                              • - preview
                                                                              resume()
                                                                              • - preview
                                                                              suspend()
                                                                              Character.UnicodeScript
                                                                                StackWalker.Option
                                                                                  • - preview
                                                                                  allowSetThreadLocals(boolean)
                                                                                  • - preview
                                                                                  allowSetThreadLocals(boolean)
                                                                                  • - preview
                                                                                  allowSetThreadLocals(boolean)
                                                                                  java.net
                                                                                    DatagramSocketImpl
                                                                                      • + forRemoval
                                                                                      • + forRemoval
                                                                                      Inet4Address
                                                                                        Inet6Address
                                                                                          InetAddress
                                                                                            MulticastSocket
                                                                                              • + forRemoval
                                                                                              • + forRemoval
                                                                                              • + forRemoval
                                                                                              Socket
                                                                                                • + forRemoval
                                                                                                • + forRemoval
                                                                                                URL
                                                                                                  • + deprecated
                                                                                                  • + deprecated
                                                                                                  • + deprecated
                                                                                                  • + deprecated
                                                                                                  • + deprecated
                                                                                                  • + deprecated
                                                                                                  java.nio.channels
                                                                                                    FileChannel
                                                                                                      map(FileChannel.MapMode, long, long,...
                                                                                                      java.nio.charset
                                                                                                        StandardCharsets
                                                                                                          java.nio.file.spi
                                                                                                            FileSystemProvider
                                                                                                              java.nio.file
                                                                                                                Path
                                                                                                                  java.security.interfaces
                                                                                                                    DSAKeyPairGenerator
                                                                                                                      • - throws InvalidParameterException
                                                                                                                      • - throws InvalidParameterException
                                                                                                                      • + implements AlgorithmParameterSpec
                                                                                                                      DSAPrivateKey
                                                                                                                        DSAPublicKey
                                                                                                                          ECPrivateKey
                                                                                                                            ECPublicKey
                                                                                                                              EdECPrivateKey
                                                                                                                                EdECPublicKey
                                                                                                                                  RSAPrivateKey
                                                                                                                                    RSAPublicKey
                                                                                                                                      XECPrivateKey
                                                                                                                                        XECPublicKey
                                                                                                                                          java.security
                                                                                                                                            InvalidParameterException
                                                                                                                                              • - implements Key
                                                                                                                                              • + implements AsymmetricKey
                                                                                                                                              • - implements Key
                                                                                                                                              • + implements AsymmetricKey
                                                                                                                                              java.text
                                                                                                                                                ChoiceFormat
                                                                                                                                                  CompactNumberFormat
                                                                                                                                                    DecimalFormat
                                                                                                                                                      MessageFormat
                                                                                                                                                        NumberFormat
                                                                                                                                                          SimpleDateFormat
                                                                                                                                                            java.time
                                                                                                                                                              Instant
                                                                                                                                                                java.util.concurrent
                                                                                                                                                                  ConcurrentSkipListMap
                                                                                                                                                                    ConcurrentSkipListSet
                                                                                                                                                                      CopyOnWriteArrayList
                                                                                                                                                                        DelayQueue
                                                                                                                                                                          Executors
                                                                                                                                                                            • - preview
                                                                                                                                                                            • - preview
                                                                                                                                                                            ForkJoinPool
                                                                                                                                                                              • + throws InterruptedException
                                                                                                                                                                              ForkJoinTask
                                                                                                                                                                                ForkJoinWorkerThread
                                                                                                                                                                                  java.util.random
                                                                                                                                                                                    RandomGenerator
                                                                                                                                                                                      java.util.regex
                                                                                                                                                                                        Matcher
                                                                                                                                                                                          Pattern
                                                                                                                                                                                            MatchResult
                                                                                                                                                                                              java.util.stream
                                                                                                                                                                                                Stream
                                                                                                                                                                                                  java.util.zip
                                                                                                                                                                                                    Deflater
                                                                                                                                                                                                      • + deprecated
                                                                                                                                                                                                      • + deprecated
                                                                                                                                                                                                      Inflater
                                                                                                                                                                                                        • + deprecated
                                                                                                                                                                                                        • + deprecated
                                                                                                                                                                                                        ZipFile
                                                                                                                                                                                                          ZipInputStream
                                                                                                                                                                                                            java.util
                                                                                                                                                                                                              ArrayList
                                                                                                                                                                                                                • + final
                                                                                                                                                                                                                Collections
                                                                                                                                                                                                                  IdentityHashMap
                                                                                                                                                                                                                    • - implements Map
                                                                                                                                                                                                                    • + implements SequencedMap
                                                                                                                                                                                                                    • - implements Set
                                                                                                                                                                                                                    • + implements SequencedSet
                                                                                                                                                                                                                    LinkedList
                                                                                                                                                                                                                      Locale
                                                                                                                                                                                                                        TreeMap
                                                                                                                                                                                                                          TreeSet
                                                                                                                                                                                                                            • + implements SequencedCollection
                                                                                                                                                                                                                            • - implements Collection
                                                                                                                                                                                                                            • + implements SequencedCollection
                                                                                                                                                                                                                            NavigableMap
                                                                                                                                                                                                                              NavigableSet
                                                                                                                                                                                                                                • - implements Map
                                                                                                                                                                                                                                • + implements SequencedMap
                                                                                                                                                                                                                                • + implements SequencedSet
                                                                                                                                                                                                                                javax.crypto.interfaces
                                                                                                                                                                                                                                  DHPrivateKey
                                                                                                                                                                                                                                    DHPublicKey
                                                                                                                                                                                                                                      javax.crypto
                                                                                                                                                                                                                                        javax.net.ssl
                                                                                                                                                                                                                                          KeyManagerFactory
                                                                                                                                                                                                                                            • + final
                                                                                                                                                                                                                                            SSLParameters
                                                                                                                                                                                                                                              TrustManagerFactory
                                                                                                                                                                                                                                                • + final
                                                                                                                                                                                                                                                java.compiler
                                                                                                                                                                                                                                                  javax.lang.model.element
                                                                                                                                                                                                                                                    RecordComponentElement
                                                                                                                                                                                                                                                      VariableElement
                                                                                                                                                                                                                                                        javax.lang.model.util
                                                                                                                                                                                                                                                          ElementScanner6
                                                                                                                                                                                                                                                            Elements
                                                                                                                                                                                                                                                              Types
                                                                                                                                                                                                                                                                javax.lang.model
                                                                                                                                                                                                                                                                  SourceVersion
                                                                                                                                                                                                                                                                    javax.tools
                                                                                                                                                                                                                                                                      SimpleJavaFileObject
                                                                                                                                                                                                                                                                        java.desktop
                                                                                                                                                                                                                                                                          java.awt.peer
                                                                                                                                                                                                                                                                            WindowPeer
                                                                                                                                                                                                                                                                              java.beans.beancontext
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                • + deprecated
                                                                                                                                                                                                                                                                                • + forRemoval
                                                                                                                                                                                                                                                                                java.beans
                                                                                                                                                                                                                                                                                  Beans
                                                                                                                                                                                                                                                                                    • + deprecated
                                                                                                                                                                                                                                                                                    • + forRemoval
                                                                                                                                                                                                                                                                                    javax.print.attribute.standard
                                                                                                                                                                                                                                                                                      javax.swing.plaf.synth
                                                                                                                                                                                                                                                                                        SynthComboBoxUI
                                                                                                                                                                                                                                                                                          SynthLookAndFeel
                                                                                                                                                                                                                                                                                            • + deprecated
                                                                                                                                                                                                                                                                                            • + forRemoval
                                                                                                                                                                                                                                                                                            SynthPasswordFieldUI
                                                                                                                                                                                                                                                                                              SynthTreeUI
                                                                                                                                                                                                                                                                                                javax.swing.text.html
                                                                                                                                                                                                                                                                                                  AccessibleHTML.HTMLAccessibleContext
                                                                                                                                                                                                                                                                                                    javax.swing.text
                                                                                                                                                                                                                                                                                                      DefaultEditorKit
                                                                                                                                                                                                                                                                                                        javax.swing
                                                                                                                                                                                                                                                                                                          JFileChooser
                                                                                                                                                                                                                                                                                                            JScrollBar
                                                                                                                                                                                                                                                                                                              java.management.rmi
                                                                                                                                                                                                                                                                                                                javax.management.remote.rmi
                                                                                                                                                                                                                                                                                                                  RMIConnector
                                                                                                                                                                                                                                                                                                                    getMBeanServerConnection(Subject)
                                                                                                                                                                                                                                                                                                                    RMIIIOPServerImpl
                                                                                                                                                                                                                                                                                                                    java.management
                                                                                                                                                                                                                                                                                                                      javax.management.loading
                                                                                                                                                                                                                                                                                                                        MLetContent
                                                                                                                                                                                                                                                                                                                        MLet
                                                                                                                                                                                                                                                                                                                        PrivateMLet
                                                                                                                                                                                                                                                                                                                        MLetMBean
                                                                                                                                                                                                                                                                                                                        javax.management.remote
                                                                                                                                                                                                                                                                                                                          JMXConnector
                                                                                                                                                                                                                                                                                                                            • - abstract
                                                                                                                                                                                                                                                                                                                            • + deprecated
                                                                                                                                                                                                                                                                                                                            • + forRemoval
                                                                                                                                                                                                                                                                                                                            java.net.http
                                                                                                                                                                                                                                                                                                                              java.net.http
                                                                                                                                                                                                                                                                                                                                • + implements AutoCloseable
                                                                                                                                                                                                                                                                                                                                java.xml.crypto
                                                                                                                                                                                                                                                                                                                                  javax.xml.crypto.dsig
                                                                                                                                                                                                                                                                                                                                    SignatureMethod
                                                                                                                                                                                                                                                                                                                                      java.xml
                                                                                                                                                                                                                                                                                                                                        javax.xml.catalog
                                                                                                                                                                                                                                                                                                                                          CatalogManager
                                                                                                                                                                                                                                                                                                                                            GroupEntry.ResolveType

                                                                                                                                                                                                                                                                                                                                            This report is based on simple comparison of all public and protected APIs of the java.* and javax.* packages of JDK builds 23-ea+26-2269-open and 19.0.2+7-tem. It does not make statements about compatibility.

                                                                                                                                                                                                                                                                                                                                            For the latest Java versions the corresponding CSRs (Compatibility & Specification Review) are linked for a quick reference to find out about the reasoning of the change.