New APIs in Java 12

Comparing Java 12 (12.0.2+10-adpt) with Java 9 (9.0.4-open).

Element	Modification
java.activation	removed
java.base
java.io
ByteArrayInputStream
readAllBytes()	added
readNBytes(byte[], int, int)	added
transferTo(OutputStream)	added
ByteArrayOutputStream
toString(Charset)	added
writeBytes(byte[])	added
FileInputStream
finalize()	removed
FileOutputStream
finalize()	removed
FileReader
FileReader(File, Charset)	added
FileReader(String, Charset)	added
FileWriter
FileWriter(File, Charset)	added
FileWriter(File, Charset, boolean)	added
FileWriter(String, Charset)	added
FileWriter(String, Charset, boolean)	added
InputStream
nullInputStream()	added
readNBytes(int)	added
skipNBytes(long)	added
OutputStream
nullOutputStream()	added
PrintStream
PrintStream(File, Charset)	added
PrintStream(OutputStream, boolean, Charset)	added
PrintStream(String, Charset)	added
PrintWriter
PrintWriter(File, Charset)	added
PrintWriter(OutputStream, boolean, Charset)	added
PrintWriter(String, Charset)	added
Reader
nullReader()	added
transferTo(Writer)	added
Writer
nullWriter()	added
java.lang.constant	added
java.lang.invoke
ClassSpecializer.Factory	added
ClassSpecializer.SpeciesData	added
ConstantBootstraps	added
MethodHandle	+ implements Constable
describeConstable()	added
MethodType	+ implements Constable + implements TypeDescriptor.OfMethod
describeConstable()	added
descriptorString()	added
lastParameterType()	added
VarHandle.VarHandleDesc	added
VarHandle	+ implements Constable
describeConstable()	added
toString()	added
TypeDescriptor.OfField	added
TypeDescriptor.OfMethod	added
TypeDescriptor	added
java.lang.ref
Reference
clone()	added
java.lang.reflect
MalformedParameterizedTypeException
MalformedParameterizedTypeException(String)	added
UndeclaredThrowableException
getCause()	removed
java.lang
Character.UnicodeBlock
ADLAM	added
BHAIKSUKI	added
CHESS_SYMBOLS	added
CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F	added
CYRILLIC_EXTENDED_C	added
DOGRA	added
GEORGIAN_EXTENDED	added
GLAGOLITIC_SUPPLEMENT	added
GUNJALA_GONDI	added
HANIFI_ROHINGYA	added
IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION	added
INDIC_SIYAQ_NUMBERS	added
KANA_EXTENDED_A	added
MAKASAR	added
MARCHEN	added
MASARAM_GONDI	added
MAYAN_NUMERALS	added
MEDEFAIDRIN	added
MONGOLIAN_SUPPLEMENT	added
NEWA	added
NUSHU	added
OLD_SOGDIAN	added
OSAGE	added
SOGDIAN	added
SOYOMBO	added
SYRIAC_SUPPLEMENT	added
TANGUT	added
TANGUT_COMPONENTS	added
ZANABAZAR_SQUARE	added
Character
toString(int)	added
ClassNotFoundException
getCause()	removed
Class	+ implements Constable + implements TypeDescriptor.OfField
arrayType()	added
componentType()	added
describeConstable()	added
descriptorString()	added
getNestHost()	added
getNestMembers()	added
isNestmateOf(Class)	added
Double	+ implements Constable + implements ConstantDesc
describeConstable()	added
resolveConstantDesc(MethodHandles.Lookup)	added
Enum.EnumDesc	added
Enum	+ implements Constable
describeConstable()	added
ExceptionInInitializerError
getCause()	removed
FdLibm.Cbrt
Cbrt()	removed
FdLibm.Hypot
Hypot()	removed
FdLibm.Pow
Pow()	removed
Float	+ implements Constable + implements ConstantDesc
describeConstable()	added
resolveConstantDesc(MethodHandles.Lookup)	added
Integer	+ implements Constable + implements ConstantDesc
describeConstable()	added
resolveConstantDesc(MethodHandles.Lookup)	added
Long	+ implements Constable + implements ConstantDesc
describeConstable()	added
resolveConstantDesc(MethodHandles.Lookup)	added
Runtime.Version
feature()	added
interim()	added
major()	+ deprecated
minor()	+ deprecated
patch()	added
security()	+ deprecated
update()	added
Runtime
getLocalizedInputStream(InputStream)	removed
getLocalizedOutputStream(OutputStream)	removed
runFinalizersOnExit(boolean)	removed
SecurityManager
inCheck	removed
checkAwtEventQueueAccess()	removed
checkMemberAccess(Class, int)	removed
checkSystemClipboardAccess()	removed
checkTopLevelWindow(Object)	removed
classDepth(String)	removed
classLoaderDepth()	removed
currentClassLoader()	removed
currentLoadedClass()	removed
getInCheck()	removed
inClass(String)	removed
inClassLoader()	removed
StringBuffer	+ implements Comparable
compareTo(StringBuffer)	added
StringBuilder	+ implements Comparable
compareTo(StringBuilder)	added
String	+ implements Constable + implements ConstantDesc
describeConstable()	added
indent(int)	added
isBlank()	added
lines()	added
repeat(int)	added
resolveConstantDesc(MethodHandles.Lookup)	added
strip()	added
stripLeading()	added
stripTrailing()	added
transform(Function)	added
System
runFinalizersOnExit(boolean)	removed
Thread
destroy()	removed
stop(Throwable)	removed
Character.UnicodeScript
ADLAM	added
BHAIKSUKI	added
DOGRA	added
GUNJALA_GONDI	added
HANIFI_ROHINGYA	added
MAKASAR	added
MARCHEN	added
MASARAM_GONDI	added
MEDEFAIDRIN	added
NEWA	added
NUSHU	added
OLD_SOGDIAN	added
OSAGE	added
SOGDIAN	added
SOYOMBO	added
TANGUT	added
ZANABAZAR_SQUARE	added
CharSequence
compare(CharSequence, CharSequence)	added
StackWalker.StackFrame
getDescriptor()	added
getMethodType()	added
java.net
SecureCacheResponse
getSSLSession()	added
ServerSocket
ServerSocket(SocketImpl)	added
URLDecoder
decode(String, Charset)	added
URLEncoder
encode(String, Charset)	added
java.nio.channels
Channels
newReader(ReadableByteChannel, Charset)	added
newWriter(WritableByteChannel, Charset)	added
SelectionKey
interestOpsAnd(int)	added
interestOpsOr(int)	added
Selector
select(Consumer)	added
select(Consumer, long)	added
selectNow(Consumer)	added
java.nio.file
FileStore
getBlockSize()	added
Files
mismatch(Path, Path)	added
readString(Path)	added
readString(Path, Charset)	added
writeString(Path, CharSequence, Charset,...	added
writeString(Path, CharSequence, OpenOption...)	added
Path
of(String, String...)	added
of(URI)	added
java.nio
ByteBuffer
mismatch(ByteBuffer)	added
CharBuffer
mismatch(CharBuffer)	added
DoubleBuffer
mismatch(DoubleBuffer)	added
FloatBuffer
mismatch(FloatBuffer)	added
IntBuffer
mismatch(IntBuffer)	added
LongBuffer
mismatch(LongBuffer)	added
ShortBuffer
mismatch(ShortBuffer)	added
java.security.acl
AclNotFoundException	+ forRemoval
LastOwnerException	+ forRemoval
NotOwnerException	+ forRemoval
AclEntry	+ forRemoval
Acl	+ forRemoval
Group	+ forRemoval
Owner	+ forRemoval
Permission	+ forRemoval
java.security.interfaces
DSAPrivateKey
serialVersionUID	+ deprecated
DSAPublicKey
serialVersionUID	+ deprecated
ECPrivateKey
serialVersionUID	+ deprecated
ECPublicKey
serialVersionUID	+ deprecated
RSAKey
getParams()	added
RSAMultiPrimePrivateCrtKey
serialVersionUID	+ deprecated
RSAPrivateCrtKey
serialVersionUID	+ deprecated
RSAPrivateKey
serialVersionUID	+ deprecated
RSAPublicKey
serialVersionUID	+ deprecated
XECKey	added
XECPrivateKey	added
XECPublicKey	added
java.security.spec
ECGenParameterSpec	- extends Object - implements AlgorithmParameterSpec + extends NamedParameterSpec
getName()	removed
MGF1ParameterSpec
SHA512_224	added
SHA512_256	added
NamedParameterSpec	added
PSSParameterSpec
TRAILER_FIELD_BC	added
toString()	added
RSAKeyGenParameterSpec
RSAKeyGenParameterSpec(int, BigInteger,...	added
getKeyParams()	added
RSAMultiPrimePrivateCrtKeySpec
RSAMultiPrimePrivateCrtKeySpec(BigInteger,...	added
RSAPrivateCrtKeySpec
RSAPrivateCrtKeySpec(BigInteger, BigInteger,...	added
RSAPrivateKeySpec
RSAPrivateKeySpec(BigInteger, BigInteger,...	added
getParams()	added
RSAPublicKeySpec
RSAPublicKeySpec(BigInteger, BigInteger,...	added
getParams()	added
XECPrivateKeySpec	added
XECPublicKeySpec	added
java.security
IdentityScope	+ forRemoval
Identity	+ forRemoval
PrivilegedActionException
getCause()	removed
Signer	+ forRemoval
Certificate	+ forRemoval
Key
serialVersionUID	+ deprecated
PrivateKey
serialVersionUID	+ deprecated
PublicKey
serialVersionUID	+ deprecated
java.text.spi
NumberFormatProvider
getCompactNumberInstance(Locale,...	added
java.text
CompactNumberFormat	added
NumberFormat.Field
PREFIX	added
SUFFIX	added
NumberFormat
getCompactNumberInstance()	added
getCompactNumberInstance(Locale,...	added
NumberFormat.Style	added
java.time.chrono
HijrahEra
getDisplayName(TextStyle, Locale)	added
MinguoEra
getDisplayName(TextStyle, Locale)	added
ThaiBuddhistEra
getDisplayName(TextStyle, Locale)	added
java.time.format
DateTimeFormatter
localizedBy(Locale)	added
java.util.concurrent.locks
StampedLock
isLockStamp(long)	added
isOptimisticReadStamp(long)	added
isReadLockStamp(long)	added
isWriteLockStamp(long)	added
java.util.concurrent
CompletableFuture
exceptionallyAsync(Function)	added
exceptionallyAsync(Function, Executor)	added
exceptionallyCompose(Function)	added
exceptionallyComposeAsync(Function)	added
exceptionallyComposeAsync(Function, Executor)	added
FutureTask
toString()	added
PriorityBlockingQueue
forEach(Consumer)	added
removeAll(Collection)	added
removeIf(Predicate)	added
retainAll(Collection)	added
TimeUnit
convert(Duration)	added
CompletionStage
exceptionallyAsync(Function)	added
exceptionallyAsync(Function, Executor)	added
exceptionallyCompose(Function)	added
exceptionallyComposeAsync(Function)	added
exceptionallyComposeAsync(Function, Executor)	added
java.util.function
Predicate
not(Predicate)	added
java.util.jar
JarEntry
getRealName()	added
JarFile
versionedStream()	added
Pack200	+ deprecated + forRemoval
Pack200.Packer	+ deprecated + forRemoval
Pack200.Unpacker	+ deprecated + forRemoval
java.util.regex
Pattern
asMatchPredicate()	added
java.util.spi
LocaleNameProvider
getDisplayUnicodeExtensionKey(String, Locale)	added
getDisplayUnicodeExtensionType(String, String,...	added
java.util.stream
Collectors
teeing(Collector, Collector, BiFunction)	added
toUnmodifiableList()	added
toUnmodifiableMap(Function, Function)	added
toUnmodifiableMap(Function, Function,...	added
toUnmodifiableSet()	added
java.util.zip
Deflater
deflate(ByteBuffer)	added
deflate(ByteBuffer, int)	added
finalize()	removed
setDictionary(ByteBuffer)	added
setInput(ByteBuffer)	added
Inflater
finalize()	removed
inflate(ByteBuffer)	added
setDictionary(ByteBuffer)	added
setInput(ByteBuffer)	added
ZipFile
finalize()	removed
java.util
ArrayList
equals(Object)	added
hashCode()	added
DoubleSummaryStatistics
DoubleSummaryStatistics(long, double, double,...	added
Formatter
Formatter(File, Charset, Locale)	added
Formatter(OutputStream, Charset, Locale)	added
Formatter(String, Charset, Locale)	added
IntSummaryStatistics
IntSummaryStatistics(long, int, int, long)	added
LongSummaryStatistics
LongSummaryStatistics(long, long, long, long)	added
OptionalDouble
isEmpty()	added
orElseThrow()	added
OptionalInt
isEmpty()	added
orElseThrow()	added
OptionalLong
isEmpty()	added
orElseThrow()	added
Optional
isEmpty()	added
orElseThrow()	added
PriorityQueue
forEach(Consumer)	added
removeAll(Collection)	added
removeIf(Predicate)	added
retainAll(Collection)	added
Properties
Properties(int)	added
storeToXML(OutputStream, String, Charset)	added
Scanner
Scanner(File, Charset)	added
Scanner(InputStream, Charset)	added
Scanner(Path, Charset)	added
Scanner(ReadableByteChannel, Charset)	added
SplittableRandom
nextBytes(byte[])	added
Collection
toArray(IntFunction)	added
List
copyOf(Collection)	added
Map
copyOf(Map)	added
Set
copyOf(Collection)	added
javax.crypto.interfaces
DHPrivateKey
serialVersionUID	+ deprecated
DHPublicKey
serialVersionUID	+ deprecated
PBEKey
serialVersionUID	+ deprecated
javax.crypto.spec
ChaCha20ParameterSpec	added
javax.crypto
Cipher
toString()	added
SecretKey
serialVersionUID	+ deprecated
javax.net.ssl
HttpsURLConnection
getSSLSession()	added
javax.security.auth
Policy	removed
java.compiler
javax.lang.model.util
AbstractAnnotationValueVisitor7
AbstractAnnotationValueVisitor7()	+ deprecated
AbstractElementVisitor7
AbstractElementVisitor7()	+ deprecated
AbstractTypeVisitor7
AbstractTypeVisitor7()	+ deprecated
ElementKindVisitor7
ElementKindVisitor7()	+ deprecated
ElementKindVisitor7(Object)	+ deprecated
ElementScanner7
ElementScanner7()	+ deprecated
ElementScanner7(Object)	+ deprecated
SimpleAnnotationValueVisitor7
SimpleAnnotationValueVisitor7()	+ deprecated
SimpleAnnotationValueVisitor7(Object)	+ deprecated
SimpleElementVisitor7
SimpleElementVisitor7()	+ deprecated
SimpleElementVisitor7(Object)	+ deprecated
SimpleTypeVisitor7
SimpleTypeVisitor7()	+ deprecated
SimpleTypeVisitor7(Object)	+ deprecated
TypeKindVisitor6
visitNoTypeAsModule(NoType, Object)	added
TypeKindVisitor7
TypeKindVisitor7()	+ deprecated
TypeKindVisitor7(Object)	+ deprecated
TypeKindVisitor9
visitNoTypeAsModule(NoType, Object)	added
javax.lang.model
SourceVersion
RELEASE_10	added
RELEASE_11	added
RELEASE_12	added
java.corba	removed
java.desktop
java.awt.geom
Path2D.Double
trimToSize()	added
Path2D.Float
trimToSize()	added
Path2D
trimToSize()	added
java.awt
Component.AccessibleAWTComponent.AccessibleAWTComp...	+ implements Serializable
Component.AccessibleAWTComponent.AccessibleAWTFocu...	+ implements Serializable
Container.AccessibleAWTContainer.AccessibleContain...	+ implements Serializable
Toolkit
getMenuShortcutKeyMask()	+ deprecated
getMenuShortcutKeyMaskEx()	added
javax.print.attribute.standard
DialogOwner	added
javax.swing.filechooser
FileSystemView
getChooserShortcutPanelFiles()	added
javax.swing.plaf.basic
BasicMenuUI
getMinimumSize(JComponent)	added
javax.swing
DefaultComboBoxModel
addAll(Collection)	added
addAll(int, Collection)	added
DefaultListModel
addAll(Collection)	added
addAll(int, Collection)	added
ButtonModel
getGroup()	added
ListSelectionModel
getSelectedIndices()	added
getSelectedItemsCount()	added
java.management.rmi
javax.management.remote.rmi
RMIConnectorServer
CREDENTIALS_FILTER_PATTERN	added
CREDENTIAL_TYPES	+ deprecated + forRemoval
SERIAL_FILTER_PATTERN	added
java.management
java.lang.management
RuntimeMXBean
getPid()	added
ThreadMXBean
dumpAllThreads(boolean, boolean, int)	added
getThreadInfo(long[], boolean, boolean, int)	added
java.naming
javax.naming.directory
Attribute
serialVersionUID	+ deprecated
javax.naming.ldap.spi	added
javax.naming
Name
serialVersionUID	+ deprecated
java.net.http	added
java.rmi
java.rmi.server
RemoteRef
serialVersionUID	+ deprecated
ServerRef
serialVersionUID	+ deprecated
java.sql
javax.transaction.xa	removed
java.transaction.xa	added
java.transaction	removed
java.xml.bind	removed
java.xml.crypto
javax.xml.crypto.dsig
DigestMethod
SHA224	added
SHA384	added
SHA3_224	added
SHA3_256	added
SHA3_384	added
SHA3_512	added
SignatureMethod
DSA_SHA256	added
ECDSA_SHA1	added
ECDSA_SHA224	added
ECDSA_SHA256	added
ECDSA_SHA384	added
ECDSA_SHA512	added
HMAC_SHA224	added
HMAC_SHA256	added
HMAC_SHA384	added
HMAC_SHA512	added
RSA_SHA224	added
RSA_SHA256	added
RSA_SHA384	added
RSA_SHA512	added
SHA1_RSA_MGF1	added
SHA224_RSA_MGF1	added
SHA256_RSA_MGF1	added
SHA384_RSA_MGF1	added
SHA512_RSA_MGF1	added
java.xml.ws.annotation	removed
java.xml.ws	removed
java.xml
javax.xml.stream
XMLInputFactory
newFactory()	- deprecated

Data Source

This report is based on simple comparison of all public and protected APIs of the java.* and javax.* packages of JDK builds 12.0.2+10-adpt and 9.0.4-open. 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.

More detailed API comparisons based on the japicmp tool can be found here.