How to set preferIPv4Stack property for JNLP app?
问题 I need to set java.net.preferIPv4Stack=true to an app started via JNLP (javaws and applet) Tried those, without luck... <j2se ...java-vm-args="-Djava.net.preferIPv4Stack=true" /> <property name="java.net.preferIPv4Stack" value="true"/> System.setProperty("java.net.preferIPv4Stack", "true"); The only way i could make it work was seeting when launching javaws from local filesystem: javaws -J-Djava.net.preferIPv4Stack=true myapp.jnlp What is not possible on a applet or URL. How should i set this