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https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/util/Optional.html
Optional (Java SE 26 & JDK 26)
declaration: module: java.base, package: java.util, class: Optional
optional java se26 jdk
https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Optional.html
Optional (Java SE 17 & JDK 17)
declaration: module: java.base, package: java.util, class: Optional
optional java se17 jdk
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Optional.html
Optional (Java SE 25 & JDK 25)
declaration: module: java.base, package: java.util, class: Optional
optional java se25 jdk