diff --git a/.inscode b/.inscode
index fc90fcf343d827601679bd6a163e84ee4f4edfbb..5c7df2b63d4a67b3a34f904fe145e3b98f176ace 100644
--- a/.inscode
+++ b/.inscode
@@ -1,4 +1,5 @@
-run = "cowsay 欢迎来到 InsCode"
+run = "java -classpath .:target/dependency/* Main"
+entrypoint = "Main.java"
 
 [nix]
 channel = "stable-22_11"
diff --git a/Main.class b/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..4717f9d9890ab638386b1c3607e885df89a8b59a
Binary files /dev/null and b/Main.class differ
diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..1a68b2dd0a36d3447eed91dc217b0ec3bb12c172
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,5 @@
+class Main {
+  public static void main(String[] args) {
+    System.out.println("Hello world!");
+  }
+}
\ No newline at end of file
diff --git a/inscode.nix b/inscode.nix
index 2a5879a58618e489038072b8c86903e4384a77b8..ee4c15ce4f9b23e3b685528d0d50e808be6cb962 100644
--- a/inscode.nix
+++ b/inscode.nix
@@ -1,5 +1,6 @@
 { pkgs }: {
     deps = [
-        pkgs.cowsay
+        pkgs.graalvm17-ce
+        pkgs.maven
     ];
-}
+}
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..420bbe01be9c9edf7f51e48198797278e49033a0
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,53 @@
+<project>
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>mygroupid</groupId>
+  <artifactId>myartifactid</artifactId>
+  <version>0.0-SNAPSHOT</version>
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <type>jar</type>
+    </dependency>
+    <dependency>
+      <groupId>com.googlecode.json-simple</groupId>
+      <artifactId>json-simple</artifactId>
+      <version>1.1.1</version>
+      <type>jar</type>
+    </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-core</artifactId>
+      <version>1.3</version>
+      <type>jar</type>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>de.qaware.maven</groupId>
+        <artifactId>go-offline-maven-plugin</artifactId>
+        <version>1.2.5</version>
+        <configuration>
+          <dynamicDependencies>
+            <DynamicDependency>
+              <groupId>org.apache.maven.surefire</groupId>
+              <artifactId>surefire-junit4</artifactId>
+              <version>2.20.1</version>
+              <classifier></classifier>
+              <repositoryType>PLUGIN</repositoryType>
+            </DynamicDependency>
+            <DynamicDependency>
+              <groupId>com.querydsl</groupId>
+              <artifactId>querydsl-apt</artifactId>
+              <version>4.2.1</version>
+              <classifier>jpa</classifier>
+              <repositoryType>MAIN</repositoryType>
+            </DynamicDependency>
+          </dynamicDependencies>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
\ No newline at end of file