<dependency>
  <groupId>hsqldb</groupId>
  <artifactId>hsqldb</artifactId>
  <version>1.7.2.2</version>
</dependency>

implementation 'hsqldb:hsqldb:1.7.2.2'

implementation("hsqldb:hsqldb:1.7.2.2")

libraryDependencies += "hsqldb" % "hsqldb" % "1.7.2.2"

@Grapes(
  @Grab(group='hsqldb', module='hsqldb', version='1.7.2.2')
)

<dependency org="hsqldb" name="hsqldb" rev="1.7.2.2" />

[hsqldb/hsqldb "1.7.2.2"]

'hsqldb:hsqldb:jar:1.7.2.2'