private ReactBridge initializeBridge(
      JavaScriptExecutor jsExecutor, JavaScriptModulesConfig jsModulesConfig) {
    mReactQueueConfiguration.getJSQueueThread().assertIsOnThread();
    Assertions.assertCondition(mBridge == null, "initializeBridge should be called once");

    Systrace.beginSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE, "ReactBridgeCtor");
    ReactBridge bridge;
    try {
      bridge =
          new ReactBridge(
              jsExecutor,
              new NativeModulesReactCallback(),
              mReactQueueConfiguration.getNativeModulesQueueThread());
      mMainExecutorToken = bridge.getMainExecutorToken();
    } finally {
      Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
    }

    Systrace.beginSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE, "setBatchedBridgeConfig");
    try {
      bridge.setGlobalVariable(
          "__fbBatchedBridgeConfig",
          buildModulesConfigJSONProperty(mJavaRegistry, jsModulesConfig));
      bridge.setGlobalVariable(
          "__RCTProfileIsProfiling",
          Systrace.isTracing(Systrace.TRACE_TAG_REACT_APPS) ? "true" : "false");
    } finally {
      Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
    }

    mJavaRegistry.notifyReactBridgeInitialized(bridge);
    return bridge;
  }