尝试在空对象引用上调用虚拟方法'void androidx.appcompat.widget.SearchView.setOnQueryTextListener'

如何解决尝试在空对象引用上调用虚拟方法'void androidx.appcompat.widget.SearchView.setOnQueryTextListener'

运行项目后出现此错误。

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.musicroom,PID: 6561
    java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.widget.SearchView.setOnQueryTextListener(androidx.appcompat.widget.SearchView$OnQueryTextListener)' on a null object reference
        at com.example.musicroom.fragments.AdminActivity.onCreateOptionsMenu(AdminActivity.java:130)
        at androidx.fragment.app.Fragment.performCreateOptionsMenu(Fragment.java:2711)
        at androidx.fragment.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManagerImpl.java:2711)
        at androidx.fragment.app.FragmentController.dispatchCreateOptionsMenu(FragmentController.java:386)
        at androidx.fragment.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:326)
        at com.android.internal.policy.PhoneWindow.preparePanel(PhoneWindow.java:619)
        at com.android.internal.policy.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:1005)
        at com.android.internal.policy.PhoneWindow$1.run(PhoneWindow.java:264)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
        at android.view.Choreographer.doCallbacks(Choreographer.java:683)
        at android.view.Choreographer.doFrame(Choreographer.java:616)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6077)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

@Override
public void onCreateOptionsMenu(Menu menu,MenuInflater inflater) {

    super.onCreateOptionsMenu(menu,inflater);
    inflater.inflate(R.menu.menu2,menu);
    androidx.appcompat.widget.SearchView searchView = ( androidx.appcompat.widget.SearchView) menu.findItem(R.id.action_search).getActionView();
    searchView.setOnQueryTextListener(new androidx.appcompat.widget.SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            adapter.getFilter().filter(newText);
            return true;
        }
    });
}

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <item android:id="@+id/action_search"
android:icon="@drawable/ic_search_black_24dp"
        android:title="search box"
        app:showAsAction="always|ifRoom|collapseActionView"
        app:actionViewClass="androidx.appcompat.widget.SearchView"></item>

</menu>

 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setHasOptionsMenu(true);

}


 Filter exampleFilter=new Filter() {
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        List<rehersalRoom> filteredList=new ArrayList<rehersalRoom>();
        if(constraint==null||constraint.length()==0)
        {
         filteredList.addAll(rrList1);
        }
        else
        {
            String Fpattern=constraint.toString().toLowerCase();
            for(rehersalRoom item:rrList1)
            {
                if(item.getRoomName().toLowerCase().contains(Fpattern))
                filteredList.add(item);
            }
        }

        FilterResults res=new FilterResults();
        res.values=filteredList;
        return res;
    }
}