Fundamental data structures (maps, sets, lists, stacks, queues) generated for combinations of object and primitive types to conserve JVM memory and speed up execution.
'com.carrotsearch:hppc:0.3.4'
<dependency> <groupId>com.carrotsearch</groupId> <artifactId>hppc</artifactId> <version>0.3.4</version> </dependency>
<dependency org="com.carrotsearch" name="hppc" rev="0.3.4"/>
"com.carrotsearch", "hppc", "0.3.4"