diff --git a/parser/src/test/resources/fetch-runtime.js b/parser/src/test/resources/fetch-runtime.js
new file mode 100644
index 0000000..6d46086
--- /dev/null
+++ b/parser/src/test/resources/fetch-runtime.js
@@ -0,0 +1,329 @@
+// ==FetchRuntime==
+// @name         Fetch API Polyfill for ES5
+// @description  Fetch API and Promise implementation for ES5 JavaScript engines
+// @version      1.0.0
+// @author       QAIU
+// ==============
+
+/**
+ * Simple Promise implementation compatible with ES5
+ * Supports basic Promise functionality needed for fetch API
+ */
+function SimplePromise(executor) {
+  var state = 'pending';
+  var value;
+  var handlers = [];
+  var self = this;
+
+  function resolve(result) {
+    if (state !== 'pending') return;
+    state = 'fulfilled';
+    value = result;
+    handlers.forEach(handle);
+    handlers = [];
+  }
+
+  function reject(err) {
+    if (state !== 'pending') return;
+    state = 'rejected';
+    value = err;
+    handlers.forEach(handle);
+    handlers = [];
+  }
+
+  function handle(handler) {
+    if (state === 'pending') {
+      handlers.push(handler);
+    } else {
+      setTimeout(function() {
+        if (state === 'fulfilled' && typeof handler.onFulfilled === 'function') {
+          try {
+            var result = handler.onFulfilled(value);
+            if (result && typeof result.then === 'function') {
+              result.then(handler.resolve, handler.reject);
+            } else {
+              handler.resolve(result);
+            }
+          } catch (e) {
+            handler.reject(e);
+          }
+        }
+        if (state === 'rejected' && typeof handler.onRejected === 'function') {
+          try {
+            var result = handler.onRejected(value);
+            if (result && typeof result.then === 'function') {
+              result.then(handler.resolve, handler.reject);
+            } else {
+              handler.resolve(result);
+            }
+          } catch (e) {
+            handler.reject(e);
+          }
+        } else if (state === 'rejected' && !handler.onRejected) {
+          handler.reject(value);
+        }
+      }, 0);
+    }
+  }
+
+  this.then = function(onFulfilled, onRejected) {
+    return new SimplePromise(function(resolveNext, rejectNext) {
+      handle({
+        onFulfilled: onFulfilled,
+        onRejected: onRejected,
+        resolve: resolveNext,
+        reject: rejectNext
+      });
+    });
+  };
+
+  this['catch'] = function(onRejected) {
+    return this.then(null, onRejected);
+  };
+
+  this['finally'] = function(onFinally) {
+    return this.then(
+      function(value) {
+        return SimplePromise.resolve(onFinally()).then(function() {
+          return value;
+        });
+      },
+      function(reason) {
+        return SimplePromise.resolve(onFinally()).then(function() {
+          throw reason;
+        });
+      }
+    );
+  };
+
+  try {
+    executor(resolve, reject);
+  } catch (e) {
+    reject(e);
+  }
+}
+
+// Static methods
+SimplePromise.resolve = function(value) {
+  if (value && typeof value.then === 'function') {
+    return value;
+  }
+  return new SimplePromise(function(resolve) {
+    resolve(value);
+  });
+};
+
+SimplePromise.reject = function(reason) {
+  return new SimplePromise(function(resolve, reject) {
+    reject(reason);
+  });
+};
+
+SimplePromise.all = function(promises) {
+  return new SimplePromise(function(resolve, reject) {
+    var results = [];
+    var remaining = promises.length;
+    
+    if (remaining === 0) {
+      resolve(results);
+      return;
+    }
+    
+    function handleResult(index, value) {
+      results[index] = value;
+      remaining--;
+      if (remaining === 0) {
+        resolve(results);
+      }
+    }
+    
+    for (var i = 0; i < promises.length; i++) {
+      (function(index) {
+        var promise = promises[index];
+        if (promise && typeof promise.then === 'function') {
+          promise.then(
+            function(value) { handleResult(index, value); },
+            reject
+          );
+        } else {
+          handleResult(index, promise);
+        }
+      })(i);
+    }
+  });
+};
+
+SimplePromise.race = function(promises) {
+  return new SimplePromise(function(resolve, reject) {
+    if (promises.length === 0) {
+      // Per spec, Promise.race with empty array stays pending forever
+      return;
+    }
+    
+    for (var i = 0; i < promises.length; i++) {
+      var promise = promises[i];
+      if (promise && typeof promise.then === 'function') {
+        promise.then(resolve, reject);
+      } else {
+        resolve(promise);
+        return;
+      }
+    }
+  });
+};
+
+// Make Promise global if not already defined
+if (typeof Promise === 'undefined') {
+  var Promise = SimplePromise;
+}
+
+/**
+ * Response object that mimics the Fetch API Response
+ */
+function FetchResponse(jsHttpResponse) {
+  this._jsResponse = jsHttpResponse;
+  this.status = jsHttpResponse.statusCode();
+  this.ok = this.status >= 200 && this.status < 300;
+  
+  // Map HTTP status codes to standard status text
+  var statusTexts = {
+    200: 'OK',
+    201: 'Created',
+    204: 'No Content',
+    301: 'Moved Permanently',
+    302: 'Found',
+    304: 'Not Modified',
+    400: 'Bad Request',
+    401: 'Unauthorized',
+    403: 'Forbidden',
+    404: 'Not Found',
+    405: 'Method Not Allowed',
+    408: 'Request Timeout',
+    409: 'Conflict',
+    410: 'Gone',
+    500: 'Internal Server Error',
+    501: 'Not Implemented',
+    502: 'Bad Gateway',
+    503: 'Service Unavailable',
+    504: 'Gateway Timeout'
+  };
+  
+  this.statusText = statusTexts[this.status] || (this.ok ? 'OK' : 'Error');
+  this.headers = {
+    get: function(name) {
+      return jsHttpResponse.header(name);
+    },
+    has: function(name) {
+      return jsHttpResponse.header(name) !== null;
+    },
+    entries: function() {
+      var headerMap = jsHttpResponse.headers();
+      var entries = [];
+      for (var key in headerMap) {
+        if (headerMap.hasOwnProperty(key)) {
+          entries.push([key, headerMap[key]]);
+        }
+      }
+      return entries;
+    }
+  };
+}
+
+FetchResponse.prototype.text = function() {
+  var body = this._jsResponse.body();
+  return SimplePromise.resolve(body || '');
+};
+
+FetchResponse.prototype.json = function() {
+  var self = this;
+  return this.text().then(function(text) {
+    try {
+      return JSON.parse(text);
+    } catch (e) {
+      throw new Error('Invalid JSON: ' + e.message);
+    }
+  });
+};
+
+FetchResponse.prototype.arrayBuffer = function() {
+  var bytes = this._jsResponse.bodyBytes();
+  return SimplePromise.resolve(bytes);
+};
+
+FetchResponse.prototype.blob = function() {
+  // Blob not supported in ES5, return bytes
+  return this.arrayBuffer();
+};
+
+/**
+ * Fetch API implementation using JavaFetch bridge
+ * @param {string} url - Request URL
+ * @param {Object} options - Fetch options (method, headers, body, etc.)
+ * @returns {Promise<FetchResponse>}
+ */
+function fetch(url, options) {
+  return new SimplePromise(function(resolve, reject) {
+    try {
+      // Parse options
+      options = options || {};
+      var method = (options.method || 'GET').toUpperCase();
+      var headers = options.headers || {};
+      var body = options.body;
+      
+      // Prepare request options for JavaFetch
+      var requestOptions = {
+        method: method,
+        headers: {}
+      };
+      
+      // Convert headers to simple object
+      if (headers) {
+        if (typeof headers.forEach === 'function') {
+          // Headers object
+          headers.forEach(function(value, key) {
+            requestOptions.headers[key] = value;
+          });
+        } else if (typeof headers === 'object') {
+          // Plain object
+          for (var key in headers) {
+            if (headers.hasOwnProperty(key)) {
+              requestOptions.headers[key] = headers[key];
+            }
+          }
+        }
+      }
+      
+      // Add body if present
+      if (body !== undefined && body !== null) {
+        if (typeof body === 'string') {
+          requestOptions.body = body;
+        } else if (typeof body === 'object') {
+          // Assume JSON
+          requestOptions.body = JSON.stringify(body);
+          if (!requestOptions.headers['Content-Type'] && !requestOptions.headers['content-type']) {
+            requestOptions.headers['Content-Type'] = 'application/json';
+          }
+        }
+      }
+      
+      // Call JavaFetch bridge
+      var jsHttpResponse = JavaFetch.fetch(url, requestOptions);
+      
+      // Create Response object
+      var response = new FetchResponse(jsHttpResponse);
+      resolve(response);
+      
+    } catch (e) {
+      reject(e);
+    }
+  });
+}
+
+// Export for global use
+if (typeof window !== 'undefined') {
+  window.fetch = fetch;
+  window.Promise = Promise;
+} else if (typeof global !== 'undefined') {
+  global.fetch = fetch;
+  global.Promise = Promise;
+}