<tag>
              <name>implSpec</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>jls</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>revised</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>spec</name>

            <tag>
              <name>implSpec</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>jls</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>revised</name>
              <placement>X</placement>
            </tag>
            <tag>
              <name>spec</name>

-   [Issue tracker: Report a defect or feature request](https://github.com/google/guava/issues/new)
-   [StackOverflow: Ask "how-to" and "why-didn't-it-work" questions](https://stackoverflow.com/questions/ask?tags=guava+java)
-   [guava-announce: Announcements of releases and upcoming significant changes](https://groups.google.com/group/guava-announce)

public abstract class AbstractFuture<V extends @Nullable Object> extends InternalFutureFailureAccess
    implements ListenableFuture<V> {

  static final boolean GENERATE_CANCELLATION_CAUSES = false;

  /**
   * Tag interface marking trusted subclasses. This enables some optimizations. The implementation
   * of this interface must also be an AbstractFuture and must not override or expose for overriding

-   [Issue tracker: Report a defect or feature request](https://github.com/google/guava/issues/new)
-   [StackOverflow: Ask "how-to" and "why-didn't-it-work" questions](https://stackoverflow.com/questions/ask?tags=guava+java)
-   [guava-discuss: For open-ended questions and discussion](https://groups.google.com/group/guava-discuss)

## IMPORTANT WARNINGS

1. APIs marked with the `@Beta` annotation at the class or method level

 * of the code may not be readable by older versions of the code (e.g., a serialized Bloom filter
 * generated today may <i>not</i> be readable by a binary that was compiled 6 months ago).
 *
 * <p>As of Guava 23.0, this class is thread-safe and lock-free. It internally uses atomics and
 * compare-and-swap to ensure correctness when multiple threads are used to access it.
 *

gten,sikhcnerf,u&bloohcs,ruci,srev,?xvp4--nx??t&a&cyssup,obgip,?e&rces,vlev,?hginyad,netnocresu,opsgolb,sidas,u&b,ollihc,??u&4rvp8--nx?fig!.&a&d&eki?ih??kimot?m&ayakat?ihsah??ne?raha&gi&kes?makak??sak??taga&may?tik??wa&g&ibi?ustakan??karihs!ihsagih????e&katim?uawak??i&gohakas?hc&apna?uonaw??k&ago?es?ot??m&anuzim?ijat??nak?urat??nanig?o&dog?jug?makonim?nim?roy?sihcih??u&fig?s&otom?t&amasak?oay??????hc,pup,stoknot,ynup,?wonsetihw,x&5ytlk--nx?irtam,?y&adynnus,dr,knarc,l&oh,rig,?moolg,ob,pp&ih,olf,?...