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copied!<p>Running JavaFX and Swing on the same thread might help fix your threading issues.</p> <p>There is an experimental feature in Java 8 to run JavaFX and Swing on the same thread:</p> <p><a href="https://javafx-jira.kenai.com/browse/RT-30694" rel="nofollow">https://javafx-jira.kenai.com/browse/RT-30694</a> <a href="http://bugs.sun.com/view_bug.do?bug_id=8015477" rel="nofollow">http://bugs.sun.com/view_bug.do?bug_id=8015477</a></p> <p>I think <code>-Djavafx.embed.singleThread=true</code> is the command line property setting to enable the experimental single threading system.</p> <p>I am not sure if the <a href="http://www.mail-archive.com/openjfx-dev@openjdk.java.net/msg01701.html" rel="nofollow">experimental feature</a> is available in the <a href="https://jdk8.java.net/download.html" rel="nofollow">current Java 8 builds</a>, but I think it might be now, so you may wish to try it.</p> <p>If you need more information on the experimental single threading feature, you could ask the developers on the <a href="http://mail.openjdk.java.net/mailman/listinfo/openjfx-dev" rel="nofollow">openjfx-dev mailing list</a>.</p> <hr> <p>Java 8 has better inbuilt reporting of when code is not run on the correct thread, it's not comprehensive, but it <em>might</em> assist you in locating the source of your error, even if you are not using the single threading option.</p> <hr> <p>Some other users running large applications merging Swing and JavaFX reported similar hard to debug threading issues, so you could check those <a href="http://www.mail-archive.com/openjfx-dev@openjdk.java.net/msg01880.html" rel="nofollow">threads</a> to see if your issues have the same cause.</p>

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