#281 exception when inserting http png image URL into map

[Gustavo J. A. M. Carneiro]

I try to insert the image URL
http://wi-mesh.org/images/stories/architecture.png

however I always get an exception, and freemind freezes:

Uncaught error fetching image:
java.lang.IllegalArgumentException: protocol = http
host = null
at
sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:146)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:739)
at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:669)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:913)
at
sun.awt.image.URLImageSource.getDecoder(URLImageSource.java:107)
at
sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:240)
at
sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172)
at
sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)