Program: 70596
Project: 70596
Buggy source:
public void snapshot_load(final String snapshotName,final int conflictResolutionPolicy){
  if (is_connected()) {
    SnapshotsClient snapshotsClient=get_snapshot_client();
    snapshotsClient.open(snapshotName,true,conflictResolutionPolicy).addOnFailureListener(new OnFailureListener(){
      @Override public void onFailure(      @NonNull Exception e){
        String message=e.getMessage();
        Log.e(TAG,"String_Node_Str" + message);
        GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{message});
      }
    }
).continueWith(new Continuation<SnapshotsClient.DataOrConflict<Snapshot>,String>(){
      @Override public String then(      @NonNull Task<SnapshotsClient.DataOrConflict<Snapshot>> task) throws Exception {
        SnapshotsClient.DataOrConflict<Snapshot> result=task.getResult();
        if (result.isConflict()) {
          GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{"String_Node_Str"});
          return null;
        }
        try {
          Snapshot snapshot=result.getData();
          return new String(snapshot.getSnapshotContents().readFully());
        }
 catch (        IOException e) {
          String message=e.getMessage();
          Log.e(TAG,"String_Node_Str" + message);
          GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{message});
        }
        return null;
      }
    }
).addOnCompleteListener(new OnCompleteListener<String>(){
      @Override public void onComplete(      @NonNull Task<String> task){
        String result=task.getResult();
        GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{result});
      }
    }
);
    Log.i(TAG,"String_Node_Str");
  }
 else {
    String message="String_Node_Str";
    GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{message});
  }
}

Fixed version (ground truth):
public void snapshot_load(final String snapshotName,final int conflictResolutionPolicy){
  if (is_connected()) {
    SnapshotsClient snapshotsClient=get_snapshot_client();
    snapshotsClient.open(snapshotName,true,conflictResolutionPolicy).addOnFailureListener(new OnFailureListener(){
      @Override public void onFailure(      @NonNull Exception e){
        String message=e.getMessage();
        Log.e(TAG,"String_Node_Str" + message);
        GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{message});
      }
    }
).continueWith(new Continuation<SnapshotsClient.DataOrConflict<Snapshot>,String>(){
      @Override public String then(      @NonNull Task<SnapshotsClient.DataOrConflict<Snapshot>> task) throws Exception {
        SnapshotsClient.DataOrConflict<Snapshot> result=task.getResult();
        if (result.isConflict()) {
          throw new Exception("String_Node_Str");
        }
        Snapshot snapshot=result.getData();
        return new String(snapshot.getSnapshotContents().readFully());
      }
    }
).addOnCompleteListener(new OnCompleteListener<String>(){
      @Override public void onComplete(      @NonNull Task<String> task){
        if (task.isSuccessful()) {
          String result=task.getResult();
          GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{result});
        }
 else {
          Log.e(TAG,"String_Node_Str" + task.getException());
          GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{task.getException().getMessage()});
        }
      }
    }
);
    Log.i(TAG,"String_Node_Str");
  }
 else {
    String message="String_Node_Str";
    GodotLib.calldeferred(instance_id,"String_Node_Str",new Object[]{message});
  }
}