4 ms·

There are interoperable since Java 8, using the operator :: com.google.common.base.Predicate<String> guavaPredicate = ... java.util.function.Predicate<Stri

• Twisol 5y ago
  The :: syntax minimizes the pain, but the fact you have to do it at all is still irritating, and IIUC it incurs a small runtime cost due to the intermediate object that's generated to convert between the two interfaces. I recently cleared out some of these intermediaries in a hot area of code and got a small but significant performance boost.