Hi As it turned out. The problem was that setting the trust information lies outside the restlet framework. Adding these two lines solved the user authenticaiton problem using SSL for me.
System.setProperty("javax.net.ssl.trustStore", keystorepath);
System.setProperty("javax.net.ssl.trustStorePassword",
keystorepassword);
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http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2888308
