Java 13 - Socket API Reimplementation

Java 13 have reimplemented the Java Socket API. Old Socket APIs like and has been replaced.

  • PlainSocketImpl is no more in use, now the Socket API provider points to NioSocketImpl.

  • New implementation leverages the java.nio infrastructure for better concurrency and i/o control.

  • New implementation is backwards compatible with code using older implementation.

  • New implementation is now default with Java 12.

  • Old implementation can be selected by multiple ways:

    • Set system property to true.

    • Run java with option.

    • Update JDK network configuration file available in ${java.home}/conf/

  • Old implementation and system property to select old implementation will be removed from future release.