Java 5 and xfire-java5 are required for crowd-integration-client to honour the http.nonProxyHosts system property

There are a number of Java system properties used to configure the behaviour of the java.net package.

Three of these: http.proxyHost, http.proxyPort and http.nonProxyHost, are used to configure the use of an HTTP proxy server.

XFire 1.2.6, as used by crowd-integration-client 1.3, also honours http.proxyHost and http.proxyPort, but only honours http.nonProxyHost if xfire-java5 (or xfire-all) is on the classpath. See XFIRE-401 for background.

Discovered in BSP-761.