Quartz-core

<dependency>
    <groupId>org.quartz-scheduler.internal</groupId>
    <artifactId>quartz-core</artifactId>
    <version>2.3.0</version>
</dependency>

compile group: 'org.quartz-scheduler.internal', name: 'quartz-core', version: '2.3.0'

compile 'org.quartz-scheduler.internal:quartz-core:2.3.0'

libraryDependencies += "org.quartz-scheduler.internal" % "quartz-core" % "2.3.0"

<dependency org="org.quartz-scheduler.internal" name="quartz-core" rev="2.3.0"/>

@Grapes(
            @Grab(group='org.quartz-scheduler.internal', module='quartz-core', version='2.3.0')
        )

[org.quartz-scheduler.internal/quartz-core "2.3.0"]

'org.quartz-scheduler.internal:quartz-core:jar:2.3.0'