Output stream incompatible with MagicS3GuardCommitter

Avro's output stream can not be used in combination with the MagicS3GuardCommitter

Error: java.lang.ClassCastException: class org.apache.hadoop.fs.s3a.commit.magic.MagicS3GuardCommitter cannot be cast to class org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter

The reason for this problem is that AvroOutputFormatBase.getAvroFileOutputStream tries to cast the outputcommiter to a FileOutputCommitter.

It can be solved by casting to a PathOutputCommitter instead (which is a superclass of both the FileOutputCommitter and the MagicS3GuardCommitter)