Java Community | Help. Code. Learn.•6mo ago

Java mina sshd

Hi guys, I want to build an SSH server with Java mina and finally managed to get all the dependencies necessary to resolve class missing errors. Now I am encountering a new error which just blows my mind....

Unexpected problem occurred during version sanity check
Reported exception:
java.lang.AbstractMethodError: Receiver class org.slf4j.simple.SimpleServiceProvider does not define or inherit an implementation of the resolved method 'abstract java.lang.String getRequestedApiVersion()' of interface org.slf4j.spi.SLF4JServiceProvider.
    at org.slf4j.LoggerFactory.versionSanityCheck(LoggerFactory.java:366)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:184)
    at org.slf4j.LoggerFactory.getProvider(LoggerFactory.java:490)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:476)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:425)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:451)
    at org.apache.sshd.common.util.logging.AbstractLoggingBean.<init>(AbstractLoggingBean.java:66)
    at org.apache.sshd.common.util.logging.AbstractLoggingBean.<init>(AbstractLoggingBean.java:44)
    at org.apache.sshd.common.auth.AbstractUserAuthMethodFactory.<init>(AbstractUserAuthMethodFactory.java:36)
    at org.apache.sshd.server.auth.AbstractUserAuthFactory.<init>(AbstractUserAuthFactory.java:32)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<init>(UserAuthPublicKeyFactory.java:57)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<init>(UserAuthPublicKeyFactory.java:53)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory$1.<init>(UserAuthPublicKeyFactory.java:36)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<clinit>(UserAuthPublicKeyFactory.java:36)
    at org.apache.sshd.server.ServerAuthenticationManager.<clinit>(ServerAuthenticationManager.java:56)
    at src.Main.main(Main.java:19)

Unexpected problem occurred during version sanity check
Reported exception:
java.lang.AbstractMethodError: Receiver class org.slf4j.simple.SimpleServiceProvider does not define or inherit an implementation of the resolved method 'abstract java.lang.String getRequestedApiVersion()' of interface org.slf4j.spi.SLF4JServiceProvider.
    at org.slf4j.LoggerFactory.versionSanityCheck(LoggerFactory.java:366)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:184)
    at org.slf4j.LoggerFactory.getProvider(LoggerFactory.java:490)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:476)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:425)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:451)
    at org.apache.sshd.common.util.logging.AbstractLoggingBean.<init>(AbstractLoggingBean.java:66)
    at org.apache.sshd.common.util.logging.AbstractLoggingBean.<init>(AbstractLoggingBean.java:44)
    at org.apache.sshd.common.auth.AbstractUserAuthMethodFactory.<init>(AbstractUserAuthMethodFactory.java:36)
    at org.apache.sshd.server.auth.AbstractUserAuthFactory.<init>(AbstractUserAuthFactory.java:32)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<init>(UserAuthPublicKeyFactory.java:57)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<init>(UserAuthPublicKeyFactory.java:53)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory$1.<init>(UserAuthPublicKeyFactory.java:36)
    at org.apache.sshd.server.auth.pubkey.UserAuthPublicKeyFactory.<clinit>(UserAuthPublicKeyFactory.java:36)
    at org.apache.sshd.server.ServerAuthenticationManager.<clinit>(ServerAuthenticationManager.java:56)
    at src.Main.main(Main.java:19)

The code I am trying to run:

4 Replies

JavaBot•6mo ago

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nettyOP•6mo ago

package src;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.apache.sshd.common.cipher.BuiltinCiphers;
import org.apache.sshd.common.util.GenericUtils;
import org.apache.sshd.server.SshServer;
import org.apache.sshd.server.shell.ProcessShellFactory;

public class Main {

    public static void main(String[] args) throws IOException {
        
        SshServer sshd = SshServer.setUpDefaultServer();
        sshd.setPort(999);
        
        sshd.setCipherFactories(Arrays.asList(BuiltinCiphers.aes256ctr, BuiltinCiphers.aes192ctr, BuiltinCiphers.aes128ctr));
        /* sshd.setPasswordAuthenticator(new MyPasswordAuthenticator());
        sshd.setPublickeyAuthenticator(new MyPublickeyAuthenticator());
        sshd.setKeyboardInteractiveAuthenticator(new MyKeyboardInteractiveAuthenticator()); */
        sshd.start();

    }
    

}

package src;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.apache.sshd.common.cipher.BuiltinCiphers;
import org.apache.sshd.common.util.GenericUtils;
import org.apache.sshd.server.SshServer;
import org.apache.sshd.server.shell.ProcessShellFactory;

public class Main {

    public static void main(String[] args) throws IOException {
        
        SshServer sshd = SshServer.setUpDefaultServer();
        sshd.setPort(999);
        
        sshd.setCipherFactories(Arrays.asList(BuiltinCiphers.aes256ctr, BuiltinCiphers.aes192ctr, BuiltinCiphers.aes128ctr));
        /* sshd.setPasswordAuthenticator(new MyPasswordAuthenticator());
        sshd.setPublickeyAuthenticator(new MyPublickeyAuthenticator());
        sshd.setKeyboardInteractiveAuthenticator(new MyKeyboardInteractiveAuthenticator()); */
        sshd.start();

    }
    

}

Help??

nettyOP•6mo ago

https://github.com/apache/mina-sshd/blob/master/docs/ < docs

GitHub

mina-sshd/docs at master · apache/mina-sshd

Apache MINA sshd is a comprehensive Java library for client- and server-side SSH. - apache/mina-sshd

JavaBot•6mo ago

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