Java error after Debian Update (December 09)

Typical error messages:
Caused by: java.net.ConnectException: Network is unreachable
INFO: I/O exception (java.net.ConnectException) caught when processing request: Network is unreachable

Fix:
nano ~/.java/deployment/deployment.properties

Fix the following line like this:
deployment.javaws.jre.0.args=-Djava.net.preferIPv4Stack\=true