Copy annotation from dubbo to repackage.

<!-- https://jarcasting.com/artifacts/net.sf.dubtool/dubtool-placeholder/ -->
<dependency>
    <groupId>net.sf.dubtool</groupId>
    <artifactId>dubtool-placeholder</artifactId>
    <version>3.0-1.0.0</version>
</dependency>

// https://jarcasting.com/artifacts/net.sf.dubtool/dubtool-placeholder/
implementation 'net.sf.dubtool:dubtool-placeholder:3.0-1.0.0'

// https://jarcasting.com/artifacts/net.sf.dubtool/dubtool-placeholder/
implementation ("net.sf.dubtool:dubtool-placeholder:3.0-1.0.0")

'net.sf.dubtool:dubtool-placeholder:jar:3.0-1.0.0'

<dependency org="net.sf.dubtool" name="dubtool-placeholder" rev="3.0-1.0.0">
  <artifact name="dubtool-placeholder" type="jar" />
</dependency>

@Grapes(
@Grab(group='net.sf.dubtool', module='dubtool-placeholder', version='3.0-1.0.0')
)

libraryDependencies += "net.sf.dubtool" % "dubtool-placeholder" % "3.0-1.0.0"

[net.sf.dubtool/dubtool-placeholder "3.0-1.0.0"]