Base64 Before Java 8, Base64 encoding required a third-party library (Apache Commons Codec, Guava) or the internal sun.misc.BASE64Encoder class — an API that was never officially supported and was deliberately restricted from Java 9 onwards. Java 8 standardised encoding in java.util.Base64, which covers standard, URL-safe, and MIME variants and can wrap streams for large payloads. Java 8 added java.util.Base64 to the standard library. Three Encoders // Standard Base64 (RFC 4648) Base64.

Removal Timeline API Deprecated In Removed In JEP Java EE modules (JAXB, JAX-WS, etc.) Java 9 Java 11 JEP 320 JavaFX Bundled with Java 9 Unbundled in Java 11 — Nashorn JavaScript Engine Java 11 Java 15 JEP 335 Pack200 tools and API Java 11 Java 14 JEP 336 javah tool Java 9 Java 10 JEP 313 sun.misc.BASE64Encoder/Decoder Java 8 Java 11 Encapsulation Thread.destroy(), Thread.stop(Throwable) Old Java 11 — Applet API Java 9 Java 17 JEP 289 Java EE Modules Removed (JEP 320) The six Java EE modules that shipped with Java SE 6–10 were removed from Java 11.