Spring Ant e Tomcat - Erro ao conectar

Programação Java
#1

Olá,

no arquivo build.properties
name=springapp
src.dir=src
war.dir=war
lib.dir=lib
dist.dir=dist

#Configuracoes do tomcat
appserver.home=c:\kad-099g\apache-tomcat-5.5.17
deploy.path=${appserver.home}/webapps
tomcat.manager.url=http://localhost:8080/manager
tomcat.manager.username=admin
tomcat.manager.password=

no meu build.xml:

<taskdef name="install" classname="org.apache.catalina.ant.InstallTask">
	<classpath>
		<path location="${appserver.home}/server/lib/catalina-ant.jar"/>
	</classpath>
</taskdef>

<target name="install" description="Install application in Tomcat">
	<install url="${tomcat.manager.url}"
		username="${tomcat.manager.username}"
		password="${tomcat.manager.password}"
		path="/${name}"
		war="${name}"/>
</target>

quando rodo ant install

o erro é seguinte:

java.net.ConnectException: Connection refused:connect

Alguém sabe o que pode estar originando esse erro?

#2