On dalvik, javah command in graphics module fails since main/classes is not on the classpath. I think it was when introducing an accessibility class that this became required. The following patch fixes this:
diff -r 9425ba418764 buildSrc/dalvik.gradle
--- a/buildSrc/dalvik.gradle Sun May 25 16:59:23 2014 +0300
+++ b/buildSrc/dalvik.gradle Mon May 26 20:38:20 2014 +0200
@@ -487,6 +487,7 @@
  "modules/graphics/build/classes/main")
 DALVIK.glass.javahClasspath = files("modules/graphics/build/classes/main",
  "modules/graphics/build/classes/dalvik",
+ "modules/base/build/classes/main",
  "$sdk/platforms/$sdk_target/android.jar")
 DALVIK.glass.javahInclude = [
     "javafxports/android/**",