From c5809a97d8002906d4589fcb04317642f864f21b Mon Sep 17 00:00:00 2001
From: Chris Beams <chris@beams.io>
Date: Wed, 5 Nov 2014 01:41:14 +0100
Subject: [PATCH] Use Xvfb to avoid 'cannot open display' warnings

Builds began failing on Travis CI with the following message:

    Gtk-WARNING **: cannot open display:

This is because of tests like ViewLoaderTest, which now initialize the
JavaFX toolkit and expect a display in the process. This change starts
an Xvfb server (conveniently already available under Travis CI) in order
to provide a lightweight X11 environment and eliminate this problem.
---
 .travis.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 1f8fdacac0..fde7fbb678 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 language: java
 jdk: oraclejdk8
 
+before_install: 
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+
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