diff --git a/java_console/io/src/main/java/com/rusefi/Listener.java b/java_console/io/src/main/java/com/rusefi/Listener.java
new file mode 100644
index 0000000000..3722c6e526
--- /dev/null
+++ b/java_console/io/src/main/java/com/rusefi/Listener.java
@@ -0,0 +1,5 @@
+package com.rusefi;
+
+public interface Listener<T> {
+    void onResult(T parameter);
+}