Optional

'com.github.keithyokoma:Optional:1.0.0'

<dependency>
	<groupId>com.github.keithyokoma</groupId>
	<artifactId>Optional</artifactId>
	<version>1.0.0</version>
</dependency>

<dependency org="com.github.keithyokoma" name="Optional" rev="1.0.0"/>

"com.github.keithyokoma", "Optional", "1.0.0"