"No such file" error while closing RemoteFile

[elwira-zimoch]

Hi,
I am getting "no such file" exception while calling close on RemoteFile object (file.close() below).

public void get(String path, CheckedConsumer<InputStream> consumer) throws SSHException {
        try  {
           SFTPClient client = sshClient.newSFTPClient();
            final RemoteFile file = client.getSFTPEngine().open(path, EnumSet.of(OpenMode.READ));
           InputStream inputStream = getInputStream(file);
        } finally {
            if (inputStream != null) {
                    inputStream.close();
             }
           .....
        }
    }
 private RemoteFile.RemoteFileInputStream getInputStream(RemoteFile file) {
        return file.new RemoteFileInputStream() {
            @Override
            public void close() throws IOException {
                try (file) {
                    super.close();
                } finally {
                    file.close();
                }
            }
        };
    }

Here is info from stacktrace:
net.schmizz.sshj.sftp.SFTPException: No such file at net.schmizz.sshj.sftp.Response.error(Response.java:140) at net.schmizz.sshj.sftp.Response.ensureStatusIs(Response.java:133) at net.schmizz.sshj.sftp.Response.ensureStatusPacketIsOK(Response.java:125) at net.schmizz.sshj.sftp.RemoteResource.close(RemoteResource.java:55)

[exceptionfactory]

@elwira-zimoch The close() method in the anonymous class appears to be effectively calling close twice:

1. try (file) { is a try-with-resources, which calls RemoteFile.close()
2. finally { file.close(); } calls RemoteFile.close()

The finally { file.close() } block is unnecessary with the try-with-resources, so the method should work as follows:

@Override
public void close() throws IOException {
    try (file) {
        super.close();
    }
}

[elwira-zimoch]

@exceptionfactory you are right, thank you. Is there any correct way to find out weather RemoteFile/ RemoteFileInput(Output)Stream has been closed correctly? I've looked through the repo and could not find anything that would be helpful in such situation.

[exceptionfactory]

You're welcome @elwira-zimoch. As both RemoteFile and RemoteFileInputStream implement or extend standard interfaces (Closeable and InputStream), the best approach is to follow standard strategies for handling those types of resources.