Add tests for creating VM with CE/DE contexts

Test: atest MicrodroidTestApp
Change-Id: Iffa4a520be5cb4e742ce4bcf3589fef0d723e39c
diff --git a/javalib/api/test-current.txt b/javalib/api/test-current.txt
index 42ad060..8b7ec11 100644
--- a/javalib/api/test-current.txt
+++ b/javalib/api/test-current.txt
@@ -1,6 +1,10 @@
 // Signature format: 2.0
 package android.system.virtualmachine {
 
+  public class VirtualMachine implements java.lang.AutoCloseable {
+    method @NonNull public java.io.File getRootDir();
+  }
+
   public final class VirtualMachineConfig {
     method @Nullable public String getPayloadConfigPath();
   }