<dependency>
  <groupId>org.apache.hadoop</groupId>
  <artifactId>hadoop-main</artifactId>
  <version>3.0.0-alpha4</version>
  <type>pom</type>
</dependency>

implementation 'org.apache.hadoop:hadoop-main:3.0.0-alpha4'

implementation("org.apache.hadoop:hadoop-main:3.0.0-alpha4")

libraryDependencies += "org.apache.hadoop" % "hadoop-main" % "3.0.0-alpha4"

@Grapes(
  @Grab(group='org.apache.hadoop', module='hadoop-main', version='3.0.0-alpha4')
)

<dependency org="org.apache.hadoop" name="hadoop-main" rev="3.0.0-alpha4" />

[org.apache.hadoop/hadoop-main "3.0.0-alpha4"]

'org.apache.hadoop:hadoop-main:jar:3.0.0-alpha4'