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ComponentUnsupported API (not for use)Supported APIs (please use instead)Note
core-libs






sun.iojava.nio.charsets @since 1.4 

sun.misc.BASE64Decoder, sun.misc.BASE64Encoder,
com.sun.org.apache.xml.internal.security.utils.Base64

java.util.Base64 @since 8See http://openjdk.java.net/jeps/135
sun.misc.ClassLoaderUtiljava.net.URLClassLoader.close() @since 7

 

sun.misc.Cleanerjava.lang.ref.PhantomReference @since 1.2

JDK-6417205 may help with the resource issues that can arise when mapped byte buffers are not unmapped in a timely manner.

 

See JDK-6685587 and JDK-4724038

sun.misc.Servicejava.util.ServiceLoader @since 1.6 
sun.misc.Timerjava.util.Timer @since 1.3 
sun.misc.Unsafesun.misc.Unsafe consists of a number of use cases.  The following features are identified to provide support in the future releases:

 

 
sun.reflect.Reflection.getCallerClassTBDSee JDK-8043814 (Efficient Stack Walk API)
security-libs






sun.security.action.*

java.security.PrivilegedAction to call System.getProperty or other action @since 1.1

AccessController.doPrivileged(
  (PrivilegedAction<String>) () -> System.getProperty(key));
sun.security.krb5.*

Some provided in com.sun.security.jgss

javax.security.auth.kerkeros.EncryptionKey @since 1.9

javax.security.auth.kerkeros.KerberosCredMessage @since 1.9

javax.security.auth.kerberos.KerberosTicket.getSessionKey() @since 1.9

If internal classes are used to get the session key of Krb5Context, we now have ExtendedGSSContext for this purpose.

See JDK-8043071

sun.security.util.SecurityConstants

java.lang.RuntimePermission, java.net.NetPermission, or specific Permission class @since 1.1

 
sun.security.x509.X500Namejavax.security.auth.x500.X500Principal @since 1.4 
com.sun.org.apache.xml.internal.securityjavax.xml.crypto @since 1.6 

com.sun.net.ssl.**

javax.net.ssl @since 1.4 

security provider implementation class such as

  • com.sun.net.ssl.internal.ssl.Provider
  • sun.security.provider.Sun

java.security.Security.getProvider("SUN") @since 1.3

In general, you should avoid depending on a specific provider as it may not be available on other Java implementations. See Oracle security providers documentation for more rationale.
sun.security.provider.PolicyFile() or sun.security.provider.PolicyFile(URL)

java.security.Policy.getInstance("JavaPolicy", new java.security.URIParameter(uri)); @since 1.6

 
client-libsjava.awt.peer and java.awt.dnd.peerTBD (JDK-8037739)The AWT Peer API has been unsupported API and java.awt.peer.ComponentPeer interface depends on sun.* internal API.
instanceof java.awt.peer.LightweightPeerjava.awt.Component.isLightweight() @since 1.2 

com.sun.image.codec.jpeg.**

sun.awt.image.codec

javax.imageio @since 1.4See JDK-6527962
   
jdbccom.sun.rowset.**javax.sql.rowset.RowSetProvider @since 7 
jaxp

org.w3c.dom.{html, css, stylesheets}

 See JDK-8064291
 org.w3c.dom.xpath See JDK-8054197 and JDK-8054196
 com.sun.org.apache.xml.internal.resolver.** See JDK-8023732 (XML Catalog API)
 org.relaxng.datatype See JDK-8061466
compilercom.sun.tools.javac.**

javax.tools, javax.lang.model @since 1.6 com.sun.source.* @since 1.6

com.sun.tools.javac.Main is a supported API.
nashornjdk.nashorn.internal.ir.** See JDK-8048176 (Nashorn Parser API)