New APIs in Java 12

Comparing Java 12 (12.0.2+10-adpt) with Java 11 (11.0.25+9-tem).

Element	Modification
java.base
java.io
FileInputStream
finalize()	removed
FileOutputStream
finalize()	removed
InputStream
skipNBytes(long)	added
java.lang.constant	added
java.lang.invoke
MethodHandle	+ implements Constable
describeConstable()	added
MethodType	+ implements Constable + implements TypeDescriptor.OfMethod
describeConstable()	added
descriptorString()	added
VarHandle.VarHandleDesc	added
VarHandle	+ implements Constable
describeConstable()	added
toString()	added
TypeDescriptor.OfField	added
TypeDescriptor.OfMethod	added
TypeDescriptor	added
java.lang.reflect
UndeclaredThrowableException
getCause()	removed
java.lang
Character.UnicodeBlock
CHESS_SYMBOLS	added
DOGRA	added
GEORGIAN_EXTENDED	added
GUNJALA_GONDI	added
HANIFI_ROHINGYA	added
INDIC_SIYAQ_NUMBERS	added
MAKASAR	added
MAYAN_NUMERALS	added
MEDEFAIDRIN	added
OLD_SOGDIAN	added
SOGDIAN	added
ClassNotFoundException
getCause()	removed
Class	+ implements Constable + implements TypeDescriptor.OfField
arrayType()	added
componentType()	added
describeConstable()	added
descriptorString()	added
Double	+ implements Constable + implements ConstantDesc
describeConstable()	added
resolveConstantDesc(MethodHandles.Lookup)	added
Enum.EnumDesc	added
Enum	+ implements Constable
describeConstable()	added
ExceptionInInitializerError
getCause()	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
String	+ implements Constable + implements ConstantDesc
describeConstable()	added
indent(int)	added
resolveConstantDesc(MethodHandles.Lookup)	added
transform(Function)	added
Character.UnicodeScript
DOGRA	added
GUNJALA_GONDI	added
HANIFI_ROHINGYA	added
MAKASAR	added
MEDEFAIDRIN	added
OLD_SOGDIAN	added
SOGDIAN	added
java.net
SecureCacheResponse
getSSLSession()	added
ServerSocket
ServerSocket(SocketImpl)	added
java.nio.file
Files
mismatch(Path, Path)	added
java.security.interfaces
DSAPrivateKey
serialVersionUID	+ deprecated
DSAPublicKey
serialVersionUID	+ deprecated
ECPrivateKey
serialVersionUID	+ deprecated
ECPublicKey
serialVersionUID	+ deprecated
RSAMultiPrimePrivateCrtKey
serialVersionUID	+ deprecated
RSAPrivateCrtKey
serialVersionUID	+ deprecated
RSAPrivateKey
serialVersionUID	+ deprecated
RSAPublicKey
serialVersionUID	+ deprecated
java.security
PrivilegedActionException
getCause()	removed
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.util.concurrent
CompletableFuture
exceptionallyAsync(Function)	added
exceptionallyAsync(Function, Executor)	added
exceptionallyCompose(Function)	added
exceptionallyComposeAsync(Function)	added
exceptionallyComposeAsync(Function, Executor)	added
CompletionStage
exceptionallyAsync(Function)	added
exceptionallyAsync(Function, Executor)	added
exceptionallyCompose(Function)	added
exceptionallyComposeAsync(Function)	added
exceptionallyComposeAsync(Function, Executor)	added
java.util.stream
Collectors
teeing(Collector, Collector, BiFunction)	added
java.util.zip
Deflater
finalize()	removed
Inflater
finalize()	removed
ZipFile
finalize()	removed
javax.crypto.interfaces
DHPrivateKey
serialVersionUID	+ deprecated
DHPublicKey
serialVersionUID	+ deprecated
PBEKey
serialVersionUID	+ deprecated
javax.crypto
Cipher
toString()	added
SecretKey
serialVersionUID	+ deprecated
javax.net.ssl
HttpsURLConnection
getSSLSession()	added
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
TypeKindVisitor7
TypeKindVisitor7()	+ deprecated
TypeKindVisitor7(Object)	+ deprecated
javax.lang.model
SourceVersion
RELEASE_12	added
java.desktop
java.awt.peer
RobotPeer
dispose()	added
useAbsoluteCoordinates()	removed
javax.swing.filechooser
FileSystemView
getChooserShortcutPanelFiles()	added
javax.swing.plaf.basic
BasicRadioButtonUI
installListeners(AbstractButton)	added
uninstallListeners(AbstractButton)	added
javax.swing
JPasswordField
setText(String)	removed
java.naming
javax.naming.directory
Attribute
serialVersionUID	+ deprecated
javax.naming.ldap.spi	added
javax.naming
Name
serialVersionUID	+ deprecated
java.rmi
java.rmi.server
RemoteRef
serialVersionUID	+ deprecated
ServerRef
serialVersionUID	+ 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 11.0.25+9-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.