<dependency>
  <groupId>org.apache.tomcat</groupId>
  <artifactId>servlet-api</artifactId>
  <version>6.0.18</version>
</dependency>

implementation 'org.apache.tomcat:servlet-api:6.0.18'

implementation("org.apache.tomcat:servlet-api:6.0.18")

libraryDependencies += "org.apache.tomcat" % "servlet-api" % "6.0.18"

@Grapes(
  @Grab(group='org.apache.tomcat', module='servlet-api', version='6.0.18')
)

<dependency org="org.apache.tomcat" name="servlet-api" rev="6.0.18" />

[org.apache.tomcat/servlet-api "6.0.18"]

'org.apache.tomcat:servlet-api:jar:6.0.18'