--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/main/JavaCompiler.java	Wed Feb 15 11:55:16 2017 -0800
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/main/JavaCompiler.java	Wed Feb 15 14:12:29 2017 -0800
@@ -888,7 +888,7 @@
 
     public void compile(List<JavaFileObject> sourceFileObject)
         throws Throwable {
-        compile(sourceFileObject, List.nil(), null);
+        compile(sourceFileObject, List.nil(), null, List.nil());
     }
 
     /**
@@ -898,10 +898,13 @@
      * @param classnames class names to process for annotations
      * @param processors user provided annotation processors to bypass
      * discovery, {@code null} means that no processors were provided
+     * @param addModules additional root modules to be used during
+     * module resolution.
      */
     public void compile(Collection<JavaFileObject> sourceFileObjects,
                         Collection<String> classnames,
-                        Iterable<? extends Processor> processors)
+                        Iterable<? extends Processor> processors,
+                        Collection<String> addModules)
     {
         if (!taskListener.isEmpty()) {
             taskListener.started(new TaskEvent(TaskEvent.Kind.COMPILATION));
@@ -932,6 +935,10 @@
                 }
             }
 
+            for (String moduleName : addModules) {
+                modules.addExtraAddModules(moduleName);
+            }
+
             // These method calls must be chained to avoid memory leaks
             processAnnotations(
                 enterTrees(