diff --git a/java/config/config.go b/java/config/config.go
index 30c6f91..ea2f934 100644
--- a/java/config/config.go
+++ b/java/config/config.go
@@ -60,7 +60,7 @@
 
 const (
 	JavaVmFlags  = `-XX:OnError="cat hs_err_pid%p.log" -XX:CICompilerCount=6 -XX:+UseDynamicNumberOfGCThreads`
-	JavacVmFlags = `-J-XX:OnError="cat hs_err_pid%p.log" -J-XX:CICompilerCount=6 -J-XX:+UseDynamicNumberOfGCThreads`
+	JavacVmFlags = `-J-XX:OnError="cat hs_err_pid%p.log" -J-XX:CICompilerCount=6 -J-XX:+UseDynamicNumberOfGCThreads -J-XX:+TieredCompilation -J-XX:TieredStopAtLevel=1`
 )
 
 func init() {