Comparing two 'clean sdk' builds I get this report of missing resources in the output. We need to fix this or risk not noticing the missing files.

Comparing:
    one: /home/ddhill/sb/9/refbuild/rt
    two: /home/ddhill/sb/9/arun/rt
Comparing rt/build files:
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/dtjava.js
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/error.png
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/get_javafx.png
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/get_java.png
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-chrome.png
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-loading-100x100.gif
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-loading-25x25.gif
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/upgrade_javafx.png
    missing: build/modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/upgrade_java.png
Comparing JAR build/modular-sdk/modules_libs/jdk.packager/ant-javafx.jar ant-javafx
Comparing JAR build/modular-sdk/modules_libs/javafx.graphics/javafx-swt.jar javafx-swt
Comparing artifact files:
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/dtjava.js
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/error.png
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/get_javafx.png
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/get_java.png
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-chrome.png
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-loading-100x100.gif
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/javafx-loading-25x25.gif
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/upgrade_javafx.png
    missing: ./modular-sdk/modules/jdk.packager/com/sun/javafx/tools/resource/dtoolkit/resources/web-files/upgrade_java.png