Client.handle method throws ConnectionException in case no server available, but declares no checked Exception

[epgrubmair]

In case there is no server running, Client.handle(Request request) throws java.net.ConnectionException allthough the Java doc tells that there will be no checked Exception thrown.
java.net.ConnectionException is a java.io.IOException and thus a checked Exception

here is a stacktrace:
2014-09-23 13:48:40,462 (002166358) [022] WARN : org.restlet - An error occurred during the communication with the remote HTTP server.
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:117)
at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:157)
at org.apache.http.conn.scheme.SchemeSocketFactoryAdaptor.connectSocket(SchemeSocketFactoryAdaptor.java:65)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at org.restlet.ext.httpclient.internal.HttpMethodCall.sendRequest(HttpMethodCall.java:347)
at org.restlet.engine.adapter.ClientAdapter.commit(ClientAdapter.java:114)
at org.restlet.engine.adapter.HttpClientHelper.handle(HttpClientHelper.java:112)
at org.restlet.Client.handle(Client.java:162)
at org.restlet.Restlet.handle(Restlet.java:284)