A2A Java SDK 1.0.0.Alpha1 - Embracing the 1.0 Specification

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>io.github.a2asdk</groupId>
            <artifactId>a2a-java-sdk-bom</artifactId>
            <version>1.0.0.Alpha1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>io.github.a2asdk</groupId>
        <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
    </dependency>
</dependencies>

@ApplicationScoped
public class MyAgentCardProducer {
    @Produces @PublicAgentCard
    public AgentCard agentCard() {
        return AgentCard.builder()
            .name("Weather Agent")
            .description("Provides weather information")
            .version("1.0.0")
            .capabilities(AgentCapabilities.builder()
                .streaming(true)
                .pushNotifications(false)
                .build())
            .defaultInputModes(List.of("text"))
            .defaultOutputModes(List.of("text"))
            .skills(List.of(
                AgentSkill.builder()
                    .id("weather_query")
                    .name("Weather Queries")
                    .description("Get current weather for a location")
                    .build()
            ))
            .protocolVersion(AgentCard.CURRENT_PROTOCOL_VERSION)
            .supportedInterfaces(List.of(
                new AgentInterface("JSONRPC", "http://localhost:9999")
            ))
            .build();
    }
}

@ApplicationScoped
public class MyAgentExecutorProducer {
    @Produces
    public AgentExecutor agentExecutor() {
        return new MyAgentExecutor();
    }

    private static class MyAgentExecutor implements AgentExecutor {
        @Override
        public void execute(RequestContext context, EventQueue eventQueue) {
            TaskUpdater updater = new TaskUpdater(context, eventQueue);
            updater.submit();
            updater.startWork();

            // Your agent logic here
            String response = "Current weather: Sunny, 72°F";

            updater.addArtifact(List.of(new TextPart(response, null)));
            updater.complete();
        }
    }
}