diff -r 3cb9af04c779 -r 0f19096663d1 src/jdk.packager/macosx/classes/jdk/packager/internal/mac/MacAppBundler.java
--- a/src/jdk.packager/macosx/classes/jdk/packager/internal/mac/MacAppBundler.java	Thu Oct 18 18:04:05 2018 -0400
+++ b/src/jdk.packager/macosx/classes/jdk/packager/internal/mac/MacAppBundler.java	Thu Oct 18 21:04:15 2018 -0400
@@ -443,9 +443,7 @@
     }
 
     public void cleanupConfigFiles(Map<String, ? super Object> params) {
-        //Since building the app can be bypassed, make sure configRoot was set
-        if (CONFIG_ROOT.fetchFrom(params) != null
-                && !StandardBundlerParam.ECHO_MODE.fetchFrom(params)) {
+        if (CONFIG_ROOT.fetchFrom(params) != null) {
             getConfig_Icon(params).delete();
             getConfig_InfoPlist(params).delete();
         }
@@ -510,7 +508,7 @@
         return doBundle(params, outputParentDir, false);
     }
 
-    @Override    
+    @Override
     public boolean supported() {
         return Platform.getPlatform() == Platform.MAC;
     }