Can't connect to remote hdfs using spring hadoop - spring

Question

I'm just starting in Hadoop and I'm trying to read from remote hdfs (remote hdfs in a docker container, accessible from localhost:32783) trough Spring Hadoop but I get the following error:
org.springframework.data.hadoop.HadoopException:
Cannot list resources Failed on local exception:
java.io.EOFException; Host Details : local host is: "user/127.0.1.1";
destination host is: "localhost":32783;
I'm triying to read the file using the following code:
HdfsClient hdfsClient = new HdfsClient();
Configuration conf = new Configuration();
conf.set("fs.defaultFS","hdfs://localhost:32783");
FileSystem fs = FileSystem.get(conf);
SimplerFileSystem sFs = new SimplerFileSystem(fs);
hdfsClient.setsFs(sFs);
String filePath = "/tmp/tmpTestReadTest.txt";
String output = hdfsClient.readFile(filePath);
What hdfsClient.readFile(filePath) does is the following:
public class HdfsClient {
private SimplerFileSystem sFs;
public String readFile(String filePath) throws IOException {
FSDataInputStream inputStream = this.sFs.open(filePath);
output = getStringFromInputStream(inputStream.getWrappedStream());
inputStream.close();
}
return output;
}
Any guess why I can't read from the remote hdfs? Removing the conf.set("fs.defaultFS","hdfs://localhost:32783"); I can read, but just from local filepath.
I understand that the "hdfs://localhost:32783" is correct because changing it by a random uri gives Connection refused error
There migh be something wrong into my hadoop configuration?
Thank you!