/hg/icedtea-web: Made headless detection softer

[jvanek at icedtea.classpath.org]

changeset 5290684409aa in /hg/icedtea-web
details: http://icedtea.classpath.org/hg/icedtea-web?cmd=changeset;node=5290684409aa
author: Jiri Vanek <jvanek at redhat.com>
date: Thu May 24 17:55:31 2018 +0200

	Made headless detection softer


diffstat:

 netx/net/sourceforge/jnlp/runtime/JNLPRuntime.java |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r b64b383a4561 -r 5290684409aa netx/net/sourceforge/jnlp/runtime/JNLPRuntime.java
--- a/netx/net/sourceforge/jnlp/runtime/JNLPRuntime.java	Mon May 14 17:11:41 2018 +0200
+++ b/netx/net/sourceforge/jnlp/runtime/JNLPRuntime.java	Thu May 24 17:55:31 2018 +0200
@@ -19,6 +19,9 @@
 import static net.sourceforge.jnlp.runtime.Translator.R;
 
 import java.awt.EventQueue;
+import java.awt.GraphicsEnvironment;
+import static java.awt.GraphicsEnvironment.isHeadless;
+import java.awt.HeadlessException;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -741,8 +744,10 @@
             }
             if (!headless) {
                 try {
-                    new JWindow().getOwner();
-                } catch (Exception ex) {
+                    if (GraphicsEnvironment.isHeadless()) {
+                        throw new HeadlessException();
+                    }
+                } catch (HeadlessException ex) {
                     headless = true;
                     OutputController.getLogger().log(ex);
                     OutputController.getLogger().log(OutputController.Level.MESSAGE_ALL, Translator.R("HEADLESS_MISSCONFIGURED"));