feat: create modules for supporting jdk8 and jdk17 and above

Author: bsorrentino

agents/pom.xml

@@ -19,15 +19,15 @@
     <dependencies>
 
         <dependency>
-            <groupId>org.bsc.ai</groupId>
+            <groupId>org.bsc.langgraph4j</groupId>
             <artifactId>langgraph4j</artifactId>
             <version>${project.version}</version>
+            <classifier>jdk17</classifier>
         </dependency>
 
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>1.18.32</version>
             <scope>provided</scope>
         </dependency>
 

agents/src/main/java/dev/langchain4j/Agent.java

@@ -1,12 +1,7 @@
 package dev.langchain4j;
 
 import dev.langchain4j.agent.tool.ToolSpecification;
-import dev.langchain4j.data.message.AiMessage;
-import dev.langchain4j.data.message.ChatMessage;
-import dev.langchain4j.data.message.SystemMessage;
-import dev.langchain4j.data.message.UserMessage;
-import dev.langchain4j.data.message.ToolExecutionResultMessage;
-
+import dev.langchain4j.data.message.*;
 import dev.langchain4j.model.chat.ChatLanguageModel;
 import dev.langchain4j.model.input.PromptTemplate;
 import dev.langchain4j.model.output.Response;
@@ -17,16 +12,14 @@
 import java.util.List;
 import java.util.Map;
 
-import static java.lang.String.format;
-
 @Builder
 public class Agent {
 
     private final  ChatLanguageModel chatLanguageModel;
     @Singular  private final List<ToolSpecification> tools;
 
 
-    public Response<AiMessage> execute( String input, List<AgentExecutor.IntermediateStep> intermediateSteps ) {
+    public Response<AiMessage> execute( String input, List<IntermediateStep> intermediateSteps ) {
         var userMessageTemplate = PromptTemplate.from( "{{input}}" )
                                                     .apply( Map.of( "input", input));
 
@@ -38,13 +31,13 @@ public Response<AiMessage> execute( String input, List<AgentExecutor.Intermediat
         if (!intermediateSteps.isEmpty()) {
 
             var toolRequests = intermediateSteps.stream()
-                    .map(AgentExecutor.IntermediateStep::action)
-                    .map(AgentExecutor.AgentAction::toolExecutionRequest)
+                    .map(IntermediateStep::action)
+                    .map(AgentAction::toolExecutionRequest)
                     .toList();
 
             messages.add(new AiMessage(toolRequests)); // reply with tool requests
 
-            for (AgentExecutor.IntermediateStep step : intermediateSteps) {
+            for (IntermediateStep step : intermediateSteps) {
                 var toolRequest = step.action().toolExecutionRequest();
 
                 messages.add(new ToolExecutionResultMessage(toolRequest.id(), toolRequest.name(), step.observation()));