feat: support AbstractTranslet packer

vul/vul-webapp-deserialize/build.gradle.kts

@@ -29,6 +29,9 @@ val filesToCopy = objects.fileCollection().from(
 dependencies {
     implementation("com.caucho:hessian:4.0.66")
     implementation("org.yaml:snakeyaml:1.27")
+    implementation("com.alibaba:fastjson:1.2.47")
+    implementation("com.fasterxml.jackson.core:jackson-databind:2.8.0")
+    implementation("xalan:xalan:2.7.2")
     providedCompile("javax.servlet:javax.servlet-api:3.1.0")
     testImplementation(libs.junit.jupiter)
     testRuntimeOnly(libs.junit.platform.launcher)

vul/vul-webapp-deserialize/src/main/java/JacksonServlet.java

@@ -0,0 +1,21 @@
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * @author ReaJason
+ * @since 2025/11/16
+ */
+@WebServlet("/jackson")
+public class JacksonServlet extends HttpServlet {
+    @Override
+    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        String data = req.getParameter("data");
+        new ObjectMapper().enableDefaultTyping().readValue(data, Object.class);
+    }
+}