test: fix failed cases

vul/vul-webapp-jakarta/src/main/java/jakarta/EmptyFilter.java

@@ -0,0 +1,18 @@
+package jakarta;
+
+import jakarta.servlet.*;
+import jakarta.servlet.annotation.WebFilter;
+
+import java.io.IOException;
+
+/**
+ * @author ReaJason
+ * @since 2025/2/23
+ */
+@WebFilter("/*")
+public class EmptyFilter implements Filter {
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+        chain.doFilter(request, response);
+    }
+}

vul/vul-webapp/src/main/webapp/WEB-INF/web.xml

@@ -54,4 +54,13 @@
         <servlet-name>b64</servlet-name>
         <url-pattern>/b64</url-pattern>
     </servlet-mapping>
+
+    <filter>
+        <filter-name>godzilla</filter-name>
+        <filter-class>EmptyFilter</filter-class>
+    </filter>
+    <filter-mapping>
+        <filter-name>godzilla</filter-name>
+        <url-pattern>/*</url-pattern>
+    </filter-mapping>
 </web-app>