diff --git a/java/testing.go b/java/testing.go
index 08a71b8..e9cdddc 100644
--- a/java/testing.go
+++ b/java/testing.go
@@ -232,6 +232,7 @@
 	RegisterAppBuildComponents(ctx)
 	RegisterAppImportBuildComponents(ctx)
 	RegisterAppSetBuildComponents(ctx)
+	registerBootclasspathBuildComponents(ctx)
 	RegisterBootImageBuildComponents(ctx)
 	RegisterDexpreoptBootJarsComponents(ctx)
 	RegisterDocsBuildComponents(ctx)