valkey-java

Java · valkey-java 5.5.0 · RESP2

Listed tests passed

Tested connection settings

io.valkey.Jedis standalone connection

Test target: 127.0.0.1:6379, username default, fixture password manual-test-only, default database. This password is only for the disposable local test container.

Verified operations

Coverage is limited to the exact API calls and assertions in the program below.

Executable test example

This program ran inside the isolated Docker image. It contains multiple client branches; this page uses the arguments below. Dependencies and compilation steps are in the test directory's Dockerfile.

java -cp "/clients:/clients/jars/*" Clients valkey
View the complete executed source
// Run: java -cp '/clients:/clients/jars/*' Clients jedis|valkey|lettuce
import java.util.*;
import redis.clients.jedis.Jedis;

public class Clients {
  static String installedVersion(String group, String artifact) {
    String file="META-INF/maven/"+group+"/"+artifact+"/pom.properties";
    try(var input=Clients.class.getClassLoader().getResourceAsStream(file)) {
      if(input==null)throw new IllegalStateException("Missing installed package metadata: "+file);
      var properties=new Properties();properties.load(input);return Objects.requireNonNull(properties.getProperty("version"));
    } catch(java.io.IOException error){throw new RuntimeException(error);}
  }
  static List<String> checks = new ArrayList<>();
  static void check(String name, Object actual, Object expected) {
    if (!Objects.equals(actual, expected)) throw new AssertionError(name+": "+actual+" != "+expected);
    checks.add(name);
  }
  public static void main(String[] args) {
    String library=args[0], version="";
    if (library.equals("jedis")) {
      version=installedVersion("redis.clients","jedis");
      try (var client=new Jedis("127.0.0.1",6379)) {
        client.auth("default","manual-test-only");
        check("authenticated PING",client.ping(),"PONG");
        check("SET",client.set("java:text","Hello 世界"),"OK");
        check("Unicode GET",client.get("java:text"),"Hello 世界");
        check("missing GET",client.get("java:missing"),null);
        client.hset("java:hash","field","value");check("HGET",client.hget("java:hash","field"),"value");
        try(var p=client.pipelined()){p.set("java:counter","1");var n=p.incr("java:counter");p.sync();check("pipeline",n.get(),2L);}
        try(var tx=client.multi()){tx.set("java:counter","3");tx.incr("java:counter");check("MULTI/EXEC",tx.exec(),List.of("OK",4L));}
        check("Lua EVAL",client.eval("return redis.call('GET',KEYS[1])",List.of("java:counter"),List.of()),"4");
        client.psetex("java:expiry",60000,"value");long ttl=client.pttl("java:expiry");check("PSETEX/PTTL",ttl>0&&ttl<=60000,true);
      }
    } else if(library.equals("valkey")) {
      version=installedVersion("io.valkey","valkey-java");
      try (var client=new io.valkey.Jedis("127.0.0.1",6379)) {
        client.auth("default","manual-test-only");
        check("authenticated PING",client.ping(),"PONG");
        check("SET",client.set("java:text","Hello 世界"),"OK");
        check("Unicode GET",client.get("java:text"),"Hello 世界");
        check("missing GET",client.get("java:missing"),null);
        client.hset("java:hash","field","value");check("HGET",client.hget("java:hash","field"),"value");
        try(var p=client.pipelined()){p.set("java:counter","1");var n=p.incr("java:counter");p.sync();check("pipeline",n.get(),2L);}
        try(var tx=client.multi()){tx.set("java:counter","3");tx.incr("java:counter");check("MULTI/EXEC",tx.exec(),List.of("OK",4L));}
        check("Lua EVAL",client.eval("return redis.call('GET',KEYS[1])",List.of("java:counter"),List.of()),"4");
      }
    } else {
      version=installedVersion("io.lettuce","lettuce-core");
      var uri=io.lettuce.core.RedisURI.Builder.redis("127.0.0.1",6379).withAuthentication("default","manual-test-only").withTimeout(java.time.Duration.ofSeconds(5)).build();
      var client=io.lettuce.core.RedisClient.create(uri);
      try(var connection=client.connect()) {
        var c=connection.sync();check("authenticated PING",c.ping(),"PONG");
        check("SET",c.set("java:text","Hello 世界"),"OK");check("Unicode GET",c.get("java:text"),"Hello 世界");check("missing GET",c.get("java:missing"),null);
        c.hset("java:hash","field","value");check("HGET",c.hget("java:hash","field"),"value");
        c.multi();c.set("java:counter","3");c.incr("java:counter");var results=c.exec();check("MULTI/EXEC count",results.size(),2);check("MULTI/EXEC value",results.get(1),4L);
        check("Lua EVAL",c.eval("return redis.call('GET',KEYS[1])",io.lettuce.core.ScriptOutputType.VALUE,new String[]{"java:counter"}),"4");
      } finally {client.shutdown();}
    }
    String names=String.join(",",checks.stream().map(x->"\""+x+"\"").toList());
    System.out.println("{\"library\":\""+library+"\",\"version\":\""+version+"\",\"checks\":["+names+"],\"status\":\"passed\"}");
  }
}

Official client repository · Dependencies and reproduction

Test environment & reproducible evidence

Verified: 2026-09-21T11:15:27Z · Docker / Linux aarch64 · lavik 0.1.0-beta.1

Storage & connection: io_uring · temporary file, 2 workers, standalone, plaintext TCP, password authentication. This test does not measure NVMe performance.

Pinned source: 3955b98d43b312324aa8d52775df52cfb111c0d0

Binary SHA-256: 8306b37ddf05023f85166a6aa2192b7084757e8defd342b602e6470244aca887

Image: sha256:fd13690a1931b8abb31b1866baa2a08c7c38e6df93aa78883321d1d3c1cddd00

Full test receipt · Executable tests