--- a/src/jdk.jpackager/linux/classes/jdk/jpackager/internal/builders/linux/LinuxAppImageBuilder.java	Mon Nov 05 19:05:15 2018 -0500
+++ b/src/jdk.jpackager/linux/classes/jdk/jpackager/internal/builders/linux/LinuxAppImageBuilder.java	Thu Nov 08 10:56:28 2018 -0500
@@ -82,7 +82,7 @@
             params -> {
                 File f = ICON.fetchFrom(params);
                 if (f != null && !f.getName().toLowerCase().endsWith(".png")) {
-                    Log.info(MessageFormat.format(I18N.getString(
+                    Log.error(MessageFormat.format(I18N.getString(
                             "message.icon-not-png"), f));
                     return null;
                 }
@@ -214,7 +214,7 @@
             copyIcon();
 
         } catch (IOException ex) {
-            Log.info("Exception: " + ex);
+            Log.error("Exception: " + ex);
             Log.debug(ex);
         }
     }