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Unsupported 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.Cleaner

java.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.  Libraries accessing sun.misc.Cleaner have to be fixed as direct byte buffer no longer uses sun.misc.Cleaner class; instead jdk.internal.misc.Cleaner.

 

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:
  • JEP 193 Enhanced Volatile
  • JEP 187 Serialization 2.0
  • Value types
  • JEP 189 Shenandoah:Low-Pause GC
  • Arrays 2.0
  • Layouts
  • Project Panama
  • JEP 191 FFI

 

In progress for JDK 9:

  • JEP 193 Enhanced Volatile
  • JDK-8044082 Efficient array comparison intrinsics  
  • JDK-8033148  Lexicographic comparators for arrays
sun.reflect.Reflection.getCallerClassjava.lang.StackWalker::getCallerClass @since 9See JDK-8043814 (Stack Walking API)
sun.util.calendar.ZoneInfojava.util.TimeZone or java.time API @since 8 
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.

JDK-8043071 resolved in JDK 9 b25

sun.security.util.SecurityConstants

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

 
sun.security.util.HostnameCheckerjavax.net.ssl.SSLParameters.setEndpointIdentificationAlgorithm("HTTPS"
or "LDAPS") can be used to enabled hostname checking during handshaking
javax.net.ssl.HttpsURLConnection.setHostnameVerifier() can be
customized hostname verifier rules for URL operations.
See also JDK-7192189  RFE to support the new endpoint identification.

sun.security.x509.*

javax.security.auth.x500.X500Principal @since 1.4

JDK-8056174 defines jdk.security.jarsigner.JarSigner API in JDK 9.  This API can also be used to generate self-signed certificates.

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
  • com.sun.crypto.provider.SunJCE

java.security.Security.getProvider(NAME) @since 1.3

where NAME is the security provider name such as "SUN", "SunJCE".

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-libs  
java.awt.peer and java.awt.dnd.peer

Instead of doing:

if (c.getPeer() != null)  { .. }

could be replaced with:

   if (c.isDisplayable())  { ... } 

To test if a component has a LightweightPeer, use:

public boolean isLightweight() ; @since 1.2

To obtain the color model of the component comes from the peer, instead of doing:

      getPanel().getPeer().getColorModel()

could be replaced with:

    public ColorModel getColorModel();

 

java.awt.peer.* and java.awt.dnd.peer.* types are encapsulated.

API reference to java.awt.peer.* and java.awt.dnd.peer.* types are removed in JDK 9.  See  JDK-8037739 and awt-dev discussion

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

sun.awt.image.codec

javax.imageio @since 1.4See JDK-6527962
com.apple.eawtjava.awt.Desktop @since 9Seehttp://openjdk.java.net/jeps/272
JDBC  
com.sun.rowset.**javax.sql.rowset.RowSetProvider @since 7 
JAXP  

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

org.w3c.dom.{html, css, stylesheets} APIs are JDK supported APIs @since 9.

 

JDK-8042244 resolved in JDK 9 b62

org.w3c.dom.xpathorg.w3c.dom.xpath API is now JDK supported API @since 9

JDK-8042244 resolved in JDK 9 b62

JDK-8054196 for XPath support any API resolved in JDK 9 b49

com.sun.org.apache.xml.internal.resolver.**javax.xml.catalog @since 9See JDK-8023732 (XML Catalog API)
org.relaxng.datatypeorg.relaxng.** will be repackaged in JDK 9.  Users should include the org.relaxng.** types in the classpath.See JDK-8061466
Others  
com.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.
jdk.nashorn.internal.ir.**JEP 236 Parser API for NashornJDK-8048176 (Nashorn Parser API) resolved in JDK 9 b55
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