High-performance immutable collections

<!-- https://jarcasting.com/artifacts/net.pwall.util/immutables/ -->
<dependency>
    <groupId>net.pwall.util</groupId>
    <artifactId>immutables</artifactId>
    <version>2.2</version>
</dependency>

// https://jarcasting.com/artifacts/net.pwall.util/immutables/
implementation 'net.pwall.util:immutables:2.2'

// https://jarcasting.com/artifacts/net.pwall.util/immutables/
implementation ("net.pwall.util:immutables:2.2")

'net.pwall.util:immutables:jar:2.2'

<dependency org="net.pwall.util" name="immutables" rev="2.2">
  <artifact name="immutables" type="jar" />
</dependency>

@Grapes(
@Grab(group='net.pwall.util', module='immutables', version='2.2')
)

libraryDependencies += "net.pwall.util" % "immutables" % "2.2"

[net.pwall.util/immutables "2.2"]