Java 16

version: 16 Release date: 2021/03 EOL date: 2021/09 bytecode: 60.0

Documentation: notes , api SCM: hg

Distro	Vendor	License	Platforms
AdoptOpenJDK	AdoptOpenJDK	Open Source	aix-ppc64 linux-x64 linux-s390x linux-ppc64le linux-aarch64 linux-arm32 macOS-x64 solaris-sparcv9 solaris-x64 windows-x86 windows-x64
Azul Zulu Build of OpenJDK	Azul	Open Source	linux-x86 linux-x64 linux-ppc32spe linux-ppc32hf linux-ppc64 linux-aarch64 linux-arm32 macOS-x64 windows-x86 windows-x64 solaris-sparcv9 solaris-x86 solaris-x64
Corretto	Amazon	Open Source	linux-x64 linux-aarch64 macOS-x64 windows-x86 windows-x64
Liberica	BellSoft	Open Source	linux-x86 linux-x64 linux-arm32 linux-aarch64 linux-ppc64le macOS-x64 windows-x86 windows-x64
Microsoft Build of OpenJDK	Microsoft	Open Source	Linux x64 macOS x64 Windows x64
OpenJDK	Oracle	Open Source	linux-x64 macOS-x64 windows-x64
Oracle JDK	Oracle	Commercial
SapMachine	SAP	Open Source	linux-x64 linux-ppc64le macOS-x64 windows-x64

Technology Compatibility Kit

New Features

JVM

ZGC: Concurrent Thread Processing ( JEP 376 )
Alpine Linux Port ( JEP 386 )
Windows/AArch64 Port ( JEP 388 )
Strongly Encapsulate JDK Internals by Default ( JEP 396 )

New APIs

Compare to Java:

base: version: 16 build 16-ea+11-421

target version: 15 build 15+36-1562

base: version: 16 build 16-ea+11-421

target version: 14 build 14.0.2+12

base: version: 16 build 16-ea+11-421

target version: 13 build 13.0.2+8

base: version: 16 build 16-ea+11-421

target version: 12 build 12.0.2+10

m
java.base
- p
  java.io
  - a
    Serial
    
    added
  - c
    PrintStream
    - m
      write(byte[])
      
      added
    - m
      writeBytes(byte[])
      
      added
- p
  java.lang.annotation
  - e
    ElementType
    - f
      RECORD_COMPONENT
      
      added
- p
  java.lang.constant
  - c
    ConstantDescs
    - f
      BSM_EXPLICIT_CAST
      
      added
    - f
      BSM_GET_STATIC_FINAL
      
      added
    - f
      FALSE
      
      added
    - f
      TRUE
      
      added
- p
  java.lang.invoke
  - c
    ClassSpecializer.Factory
    - m
      ClassSpecializer.Factory(ClassSpecializer)
      
      removed
  - c
    ConstantBootstraps
    - m
      ConstantBootstraps()
      
      removed
    - m
      explicitCast(MethodHandles.Lookup, String, Class, Object)
      
      added
  - c
    MethodHandles.Lookup
    - m
      defineHiddenClass(byte[], boolean, MethodHandles.Lookup.ClassOption...)
      
      added
    - m
      ensureInitialized(Class)
      
      added
    - m
      hasFullPrivilegeAccess()
      
      added
    - m
      hasPrivateAccess()
      
      deprecated
    - m
      previousLookupClass()
      
      added
  - c
    VarHandle
    - m
      coordinateTypes()
      
      modified
    - m
      toMethodHandle(VarHandle.AccessMode)
      
      modified
    - m
      varType()
      
      modified
  - e
    MethodHandles.Lookup.ClassOption
    
    added
- p
  java.lang.reflect
  - c
    Modifier
    - m
      Modifier()
      
      removed
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    RecordComponent
    
    added
  - i
    AnnotatedType
    - m
      getAnnotation(Class)
      
      added
    - m
      getAnnotations()
      
      added
    - m
      getDeclaredAnnotations()
      
      added
- p
  java.lang.runtime
  
  added
- p
  java.lang
  - c
    Boolean
    
    implements Constable
    - m
      describeConstable()
      
      added
  - c
    Byte
    
    implements Constable
    - m
      describeConstable()
      
      added
  - c
    Character.UnicodeBlock
    - f
      CHORASMIAN
      
      added
    - f
      CJK_UNIFIED_IDEOGRAPHS_EXTENSION_G
      
      added
    - f
      DIVES_AKURU
      
      added
    - f
      EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS
      
      added
    - f
      ELYMAIC
      
      added
    - f
      KHITAN_SMALL_SCRIPT
      
      added
    - f
      LISU_SUPPLEMENT
      
      added
    - f
      NANDINAGARI
      
      added
    - f
      NYIAKENG_PUACHUE_HMONG
      
      added
    - f
      OTTOMAN_SIYAQ_NUMBERS
      
      added
    - f
      SMALL_KANA_EXTENSION
      
      added
    - f
      SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A
      
      added
    - f
      SYMBOLS_FOR_LEGACY_COMPUTING
      
      added
    - f
      TAMIL_SUPPLEMENT
      
      added
    - f
      TANGUT_SUPPLEMENT
      
      added
    - f
      WANCHO
      
      added
    - f
      YEZIDI
      
      added
  - c
    Character
    
    implements Constable
    - m
      describeConstable()
      
      added
  - c
    Class
    - m
      getRecordComponents()
      
      added
    - m
      isHidden()
      
      added
    - m
      isRecord()
      
      added
    - m
      isSealed()
      
      added
    - m
      permittedSubclasses()
      
      added
  - c
    LiveStackFrame.PrimitiveSlot
    - m
      LiveStackFrame.PrimitiveSlot()
      
      removed
  - c
    Math
    - m
      absExact(int)
      
      added
    - m
      absExact(long)
      
      added
  - c
    NullPointerException
    - m
      fillInStackTrace()
      
      added
    - m
      getMessage()
      
      added
  - c
    Record
    
    added
  - c
    Runtime
    - m
      traceInstructions(boolean)
      
      removed
    - m
      traceMethodCalls(boolean)
      
      removed
  - c
    Short
    
    implements Constable
    - m
      describeConstable()
      
      added
  - c
    StrictMath
    - m
      absExact(int)
      
      added
    - m
      absExact(long)
      
      added
    - m
      decrementExact(int)
      
      added
    - m
      decrementExact(long)
      
      added
    - m
      incrementExact(int)
      
      added
    - m
      incrementExact(long)
      
      added
    - m
      negateExact(int)
      
      added
    - m
      negateExact(long)
      
      added
  - c
    String
    - m
      formatted(Object...)
      
      added
    - m
      stripIndent()
      
      added
    - m
      translateEscapes()
      
      added
  - c
    ThreadGroup
    - m
      allowThreadSuspension(boolean)
      
      forRemoval
    - m
      resume()
      
      forRemoval
    - m
      suspend()
      
      forRemoval
  - c
    Thread
    - m
      resume()
      
      forRemoval
    - m
      suspend()
      
      forRemoval
  - e
    Character.UnicodeScript
    - f
      CHORASMIAN
      
      added
    - f
      DIVES_AKURU
      
      added
    - f
      ELYMAIC
      
      added
    - f
      KHITAN_SMALL_SCRIPT
      
      added
    - f
      NANDINAGARI
      
      added
    - f
      NYIAKENG_PUACHUE_HMONG
      
      added
    - f
      WANCHO
      
      added
    - f
      YEZIDI
      
      added
  - i
    CharSequence
    - m
      isEmpty()
      
      added
- p
  java.net
  - c
    MulticastSocket
    - m
      getInterface()
      
      deprecated
    - m
      getLoopbackMode()
      
      deprecated
    - m
      joinGroup(InetAddress)
      
      deprecated
    - m
      leaveGroup(InetAddress)
      
      deprecated
    - m
      setInterface(InetAddress)
      
      deprecated
    - m
      setLoopbackMode(boolean)
      
      deprecated
    - m
      supportedOptions()
      
      removed
  - c
    URLDecoder
    - m
      URLDecoder()
      
      deprecated
      
      forRemoval
- p
  java.nio.channels.spi
  - c
    SelectorProvider
    - m
      openServerSocketChannel(ProtocolFamily)
      
      added
    - m
      openSocketChannel(ProtocolFamily)
      
      added
- p
  java.nio.channels
  - c
    ServerSocketChannel
    - m
      open(ProtocolFamily)
      
      added
  - c
    SocketChannel
    - m
      open(ProtocolFamily)
      
      added
- p
  java.nio.file
  - c
    FileSystems
    - m
      newFileSystem(Path)
      
      added
    - m
      newFileSystem(Path, Map)
      
      added
    - m
      newFileSystem(Path, Map, ClassLoader)
      
      added
- p
  java.nio
  - c
    Buffer
    - m
      slice(int, int)
      
      added
  - c
    ByteBuffer
    - m
      get(int, byte[])
      
      added
    - m
      get(int, byte[], int, int)
      
      added
    - m
      put(int, byte[])
      
      added
    - m
      put(int, byte[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    CharBuffer
    - m
      get(int, char[])
      
      added
    - m
      get(int, char[], int, int)
      
      added
    - m
      isEmpty()
      
      added
    - m
      put(int, char[])
      
      added
    - m
      put(int, char[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    DoubleBuffer
    - m
      get(int, double[])
      
      added
    - m
      get(int, double[], int, int)
      
      added
    - m
      put(int, double[])
      
      added
    - m
      put(int, double[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    FloatBuffer
    - m
      get(int, float[])
      
      added
    - m
      get(int, float[], int, int)
      
      added
    - m
      put(int, float[])
      
      added
    - m
      put(int, float[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    IntBuffer
    - m
      get(int, int[])
      
      added
    - m
      get(int, int[], int, int)
      
      added
    - m
      put(int, int[])
      
      added
    - m
      put(int, int[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    LongBuffer
    - m
      get(int, long[])
      
      added
    - m
      get(int, long[], int, int)
      
      added
    - m
      put(int, long[])
      
      added
    - m
      put(int, long[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
  - c
    MappedByteBuffer
    - m
      force(int, int)
      
      added
  - c
    ShortBuffer
    - m
      get(int, short[])
      
      added
    - m
      get(int, short[], int, int)
      
      added
    - m
      put(int, short[])
      
      added
    - m
      put(int, short[], int, int)
      
      added
    - m
      slice(int, int)
      
      added
- p
  java.security.acl
  
  removed
- p
  java.security.interfaces
  - i
    EdECKey
    
    added
  - i
    EdECPrivateKey
    
    added
  - i
    EdECPublicKey
    
    added
- p
  java.security.spec
  - c
    EdDSAParameterSpec
    
    added
  - c
    EdECPoint
    
    added
  - c
    EdECPrivateKeySpec
    
    added
  - c
    EdECPublicKeySpec
    
    added
  - c
    NamedParameterSpec
    - f
      ED25519
      
      added
    - f
      ED448
      
      added
- p
  java.text
  - c
    CompactNumberFormat
    - m
      CompactNumberFormat(String, DecimalFormatSymbols, String[], String)
      
      added
  - c
    DecimalFormatSymbols
    - m
      getMonetaryGroupingSeparator()
      
      added
    - m
      setMonetaryGroupingSeparator(char)
      
      added
- p
  java.time.chrono
  - c
    JapaneseEra
    - f
      REIWA
      
      added
- p
  java.util.concurrent.locks
  - c
    AbstractQueuedLongSynchronizer
    - m
      AbstractQueuedLongSynchronizer()
      
      public
  - c
    LockSupport
    - m
      setCurrentBlocker(Object)
      
      added
- p
  java.util.jar
  - c
    Pack200
    
    removed
  - i
    Pack200.Packer
    
    removed
  - i
    Pack200.Unpacker
    
    removed
- p
  java.util
  - c
    HashSet
    - m
      toArray()
      
      added
    - m
      toArray(Object[])
      
      added
  - c
    NoSuchElementException
    - m
      NoSuchElementException(String, Throwable)
      
      added
    - m
      NoSuchElementException(Throwable)
      
      added
  - c
    TreeMap
    - m
      compute(Object, BiFunction)
      
      added
    - m
      computeIfAbsent(Object, Function)
      
      added
    - m
      computeIfPresent(Object, BiFunction)
      
      added
    - m
      merge(Object, Object, BiFunction)
      
      added
    - m
      putIfAbsent(Object, Object)
      
      added
- p
  javax.net.ssl
  - c
    HandshakeCompletedEvent
    - m
      getPeerCertificateChain()
      
      forRemoval
  - i
    SSLSession
    - m
      getPeerCertificateChain()
      
      forRemoval
- p
  javax.security.cert
  - c
    CertificateEncodingException
    
    forRemoval
  - c
    CertificateException
    
    forRemoval
  - c
    CertificateExpiredException
    
    forRemoval
  - c
    CertificateNotYetValidException
    
    forRemoval
  - c
    CertificateParsingException
    
    forRemoval
  - c
    Certificate
    
    forRemoval
  - c
    X509Certificate
    
    forRemoval
m
java.compiler
- p
  javax.annotation.processing
  - i
    ProcessingEnvironment
    - m
      isPreviewEnabled()
      
      added
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  javax.lang.model.element
  - e
    ElementKind
    - f
      BINDING_VARIABLE
      
      added
    - f
      RECORD
      
      added
    - f
      RECORD_COMPONENT
      
      added
  - e
    Modifier
    
    modified
    - f
      NON_SEALED
      
      added
    - f
      SEALED
      
      added
  - i
    ElementVisitor
    - m
      visitRecordComponent(RecordComponentElement, Object)
      
      added
  - i
    Element
    - m
      getAnnotationsByType(Class)
      
      added
  - i
    ExecutableElement
    - m
      asType()
      
      added
  - i
    ModuleElement
    - m
      asType()
      
      added
  - i
    PackageElement
    - m
      asType()
      
      added
  - i
    RecordComponentElement
    
    added
  - i
    TypeElement
    - m
      asType()
      
      added
    - m
      getPermittedSubclasses()
      
      added
    - m
      getRecordComponents()
      
      added
  - i
    TypeParameterElement
    - m
      asType()
      
      added
  - i
    VariableElement
    - m
      asType()
      
      added
- p
  javax.lang.model.type
  - i
    TypeMirror
    - m
      getAnnotation(Class)
      
      added
    - m

Java Version Almanac

Java versions:

Java 16

New Features

JVM

New APIs