Backport of JSR 166 for Java 1.2 and 1.3

'backport-util-concurrent:backport-util-concurrent-java12:3.1'

<dependency>
	<groupId>backport-util-concurrent</groupId>
	<artifactId>backport-util-concurrent-java12</artifactId>
	<version>3.1</version>
</dependency>

<dependency org="backport-util-concurrent" name="backport-util-concurrent-java12" rev="3.1"/>

"backport-util-concurrent", "backport-util-concurrent-java12", "3.1"