diff --git a/maker/java/org/lionsoul/ip2region/MakerTest.java b/maker/java/src/main/java/org/lionsoul/ip2region/MakerTest.java
similarity index 76%
rename from maker/java/org/lionsoul/ip2region/MakerTest.java
rename to maker/java/src/main/java/org/lionsoul/ip2region/MakerTest.java
index 4639393f3d75114fc56ec8c8ae5f1416a47a0ea3..017facd8ff9abb77a4313f9c93a74a7dc39f9dae 100644
--- a/maker/java/org/lionsoul/ip2region/MakerTest.java
+++ b/maker/java/src/main/java/org/lionsoul/ip2region/MakerTest.java
@@ -8,4 +8,9 @@
 package org.lionsoul.ip2region;
 
 public class MakerTest {
+
+    public static void main(String[] args) {
+        System.out.println("xdb maker");
+    }
+
 }
diff --git a/maker/java/org/lionsoul/ip2region/xdb/Maker.java b/maker/java/src/main/java/org/lionsoul/ip2region/xdb/Maker.java
similarity index 100%
rename from maker/java/org/lionsoul/ip2region/xdb/Maker.java
rename to maker/java/src/main/java/org/lionsoul/ip2region/xdb/Maker.java