From 14d4c94b2e91e6c46d1e997c83031b3f12dda184 Mon Sep 17 00:00:00 2001
From: Derek Bankieris <derek.r.bankieris@nasa.gov>
Date: Wed, 22 Jun 2016 12:33:29 -0500
Subject: [PATCH] refs #256 Pass -Djava.net.preferIPv4Stack=true when launching
 Java GUIs to eliminate socket error.

---
 libexec/trick/pm/launch_java.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libexec/trick/pm/launch_java.pm b/libexec/trick/pm/launch_java.pm
index 9f9ad646..bb386fc4 100644
--- a/libexec/trick/pm/launch_java.pm
+++ b/libexec/trick/pm/launch_java.pm
@@ -35,6 +35,7 @@ sub launch_java($$) {
         $command = "java -classpath $java_dir/dist/*:$java_dir/lib/*:$java_dir/lib/ \\
              -Xdock:name=\"$name\" \\
              -Xdock:icon=$java_dir/resources/trick_icon.png \\
+             -Djava.net.preferIPv4Stack=true \\
              $application" ;
     } else {
         $command = "java -cp $java_dir/dist/*:$java_dir/lib/*:$java_dir/lib/ $application" ;