class org.apache.tools.ant.taskdefs.optional.extension.resolvers.AntResolver (implements org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver)
class org.apache.tools.ant.taskdefs.optional.extension.resolvers.LocationResolver (implements org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver)
class org.apache.tools.ant.taskdefs.optional.extension.resolvers.URLResolver (implements org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver)