diff --git a/java/androidmk.go b/java/androidmk.go
index f4e3c34..11fea82 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -24,7 +24,7 @@
 func (library *Library) AndroidMkEntriesHostDex() android.AndroidMkEntries {
 	hostDexNeeded := Bool(library.deviceProperties.Hostdex) && !library.Host()
 	if !library.IsForPlatform() {
-		// If the platform variant is available, don't emit hostdex modules from the APEX variants
+		// Don't emit hostdex modules from the APEX variants
 		hostDexNeeded = false
 	}
 
@@ -62,8 +62,14 @@
 	var entriesList []android.AndroidMkEntries
 
 	mainEntries := android.AndroidMkEntries{Disabled: true}
+
 	// For a java library built for an APEX, we don't need Make module
-	if library.IsForPlatform() {
+	hideFromMake := !library.IsForPlatform()
+	// If not available for platform, don't emit to make.
+	if !library.ApexModuleBase.AvailableFor(android.AvailableToPlatform) {
+		hideFromMake = true
+	}
+	if !hideFromMake {
 		mainEntries = android.AndroidMkEntries{
 			Class:      "JAVA_LIBRARIES",
 			OutputFile: android.OptionalPathForPath(library.outputFile),
diff --git a/java/java.go b/java/java.go
index d8db5f8..59bfaf7 100644
--- a/java/java.go
+++ b/java/java.go
@@ -559,6 +559,16 @@
 	return j.sdkVersion()
 }
 
+func (j *Module) AvailableFor(what string) bool {
+	if what == android.AvailableToPlatform && Bool(j.deviceProperties.Hostdex) {
+		// Exception: for hostdex: true libraries, the platform variant is created
+		// even if it's not marked as available to platform. In that case, the platform
+		// variant is used only for the hostdex and not installed to the device.
+		return true
+	}
+	return j.ApexModuleBase.AvailableFor(what)
+}
+
 func (j *Module) deps(ctx android.BottomUpMutatorContext) {
 	if ctx.Device() {
 		sdkDep := decodeSdkDep(ctx, sdkContext(j))