--- a/src/jdk.jpackage/share/classes/jdk/jpackage/internal/AbstractAppImageBuilder.java	Tue Dec 18 15:08:56 2018 -0500
+++ b/src/jdk.jpackage/share/classes/jdk/jpackage/internal/AbstractAppImageBuilder.java	Tue Dec 18 15:10:45 2018 -0500
@@ -65,6 +65,8 @@
     public abstract InputStream getResourceAsStream(String name);
     public abstract void prepareApplicationFiles() throws IOException;
     public abstract void prepareJreFiles() throws IOException;
+    public abstract Path getAppDir();
+    public abstract Path getAppModsDir();
 
     public Map<String, Object> getProperties() {
         return this.properties;
@@ -242,6 +244,11 @@
         for (String arg : jvmargs) {
             out.println(arg);
         }
+        Path modsDir = getAppModsDir();
+        if (modsDir != null && modsDir.toFile().exists()) {
+            out.println("--module-path");
+            out.println(getAppDir().relativize(modsDir));
+        }
         Map<String, String> jvmProps = JVM_PROPERTIES.fetchFrom(params);
         for (Map.Entry<String, String> property : jvmProps.entrySet()) {
             out.println("-D" + property.getKey() + "=" + property.getValue());