android-retroatomic is a backport of the java.util.concurrent.atomic classes added in Java 8 (DoubleAccumulator, LongAccumulator, DoubleAdder and LongAdder) for Android developers wanting to use the Android Studio 3.x D8 / desugar toolchain.
There is nothing specific to Android or the desugar toolchain in this code (it could even be compiled to Java 6 bytecode) but it has a dependency on android-retrostreams which is why this exists as a separate component (the corresponding streamsupport-atomic component can't be used with android-retrostreams and android-retrostreams itself can only be used with desugar or Java 8 and higher).
Other than having a different package name this code has no further changes compared with streamsupport-atomic
Online Javadoc is available at docs
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dependencies {
implementation 'net.sourceforge.streamsupport:android-retroatomic:1.7.4'
}GNU General Public License, version 2, with the Classpath Exception (and CC0 1.0 for JSR-166 derived code)