Tiny Java library that provides basic functionality for host/ip-address matching with (wildcard) rules. Example: ip "123.123.123.123" matches the wildcard rule "123.123.123.*".

Hostrules4j is available from Maven Central:

<dependency>
    <groupId>com.optimaize.hostrules4j</groupId>
    <artifactId>hostrules4j</artifactId>
    <version>0.2</version>
</dependency>