diff --git a/java/androidmk.go b/java/androidmk.go
index 68ccd82..71370c9 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -61,7 +61,13 @@
 	var entriesList []android.AndroidMkEntries
 
 	if library.hideApexVariantFromMake {
-		// For a java library built for an APEX we don't need Make module
+		// For a java library built for an APEX, we don't need a Make module for itself. Otherwise, it
+		// will conflict with the platform variant because they have the same module name in the
+		// makefile. However, we need to add its dexpreopt outputs as sub-modules, if it is preopted.
+		dexpreoptEntries := library.dexpreopter.AndroidMkEntriesForApex()
+		if len(dexpreoptEntries) > 0 {
+			entriesList = append(entriesList, dexpreoptEntries...)
+		}
 		entriesList = append(entriesList, android.AndroidMkEntries{Disabled: true})
 	} else if !library.ApexModuleBase.AvailableFor(android.AvailableToPlatform) {
 		// Platform variant.  If not available for the platform, we don't need Make module.