Guava ListenableFuture only
· Contains Guava's com.google.common.util.concurrent.ListenableFuture class,
without any of its other classes -- but is also available in a second
"version" that omits the class to avoid conflicts with the copy in Guava
itself. The idea is:
- If users want only ListenableFuture, they depend on listenablefuture-1.0.
- If users want all of Guava, they depend on guava, which, as of Guava
27.0, depends on
listenablefuture-9999.0-empty-to-avoid-conflict-with-guava. The 9999.0-...
version number is enough for some build systems (notably, Gradle) to select
that empty artifact over the "real" listenablefuture-1.0 -- avoiding a
conflict with the copy of ListenableFuture in guava itself. If users are
using an older version of Guava or a build system other than Gradle, they
may see class conflicts. If so, they can solve them by manually excluding
the listenablefuture artifact or manually forcing their build systems to
use 9999.0-....
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window listenablefuture-1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.