X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FHTMLOutput.java;h=2745420dad918866a53f4a7af65388f1620e5c97;hb=5aa8888ce7093703fc7e5ed4cc24d4d7059a8299;hp=eb44180a9095157205893ec98f1c05f6de52b2f3;hpb=f4b18ae31d37e694b59875f26e0863179de248f1;p=jalview.git

diff --git a/src/jalview/io/HTMLOutput.java b/src/jalview/io/HTMLOutput.java
index eb44180..2745420 100644
--- a/src/jalview/io/HTMLOutput.java
+++ b/src/jalview/io/HTMLOutput.java
@@ -29,6 +29,7 @@ import java.util.Objects;
 
 import jalview.api.AlignExportSettingsI;
 import jalview.bin.Cache;
+import jalview.bin.Jalview;
 import jalview.datamodel.AlignExportSettingsAdapter;
 import jalview.datamodel.AlignmentExportData;
 import jalview.gui.AlignmentPanel;
@@ -329,7 +330,14 @@ public abstract class HTMLOutput implements Runnable
       e.printStackTrace();
       return;
     }
-    new Thread(this).start();
+    if (Jalview.isHeadlessMode())
+    {
+      this.run();
+    }
+    else
+    {
+      new Thread(this).start();
+    }
 
   }