fix: update converters package classes

Update the package statement in the converters package so that it
matches the directory structure and fix the references to the updated
classes in the rest of the code

PiperOrigin-RevId: 846274915

Author: google-genai-bot

a2a/src/main/java/com/google/adk/a2a/A2ASendMessageExecutor.java

@@ -3,6 +3,9 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 
+import com.google.adk.a2a.converters.ConversationPreprocessor;
+import com.google.adk.a2a.converters.RequestConverter;
+import com.google.adk.a2a.converters.ResponseConverter;
 import com.google.adk.agents.BaseAgent;
 import com.google.adk.agents.RunConfig;
 import com.google.adk.artifacts.InMemoryArtifactService;

a2a/src/main/java/com/google/adk/a2a/RemoteA2AAgent.java

@@ -4,6 +4,8 @@
 import static com.google.common.base.Strings.nullToEmpty;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.adk.a2a.converters.EventConverter;
+import com.google.adk.a2a.converters.ResponseConverter;
 import com.google.adk.agents.BaseAgent;
 import com.google.adk.agents.Callbacks;
 import com.google.adk.agents.InvocationContext;

a2a/src/main/java/com/google/adk/a2a/converters/ConversationPreprocessor.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import com.google.adk.events.Event;
 import com.google.common.collect.ImmutableList;

a2a/src/main/java/com/google/adk/a2a/converters/EventConverter.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import com.google.adk.agents.InvocationContext;
 import com.google.adk.events.Event;

a2a/src/main/java/com/google/adk/a2a/converters/PartConverter.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;

a2a/src/main/java/com/google/adk/a2a/converters/RequestConverter.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import com.google.adk.events.Event;
 import com.google.common.collect.ImmutableList;

a2a/src/main/java/com/google/adk/a2a/converters/ResponseConverter.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import com.google.adk.events.Event;
 import com.google.genai.types.Content;

…m/google/adk/a2a/EventConverterTest.java …k/a2a/converters/EventConverterTest.javaa2a/src/test/java/com/google/adk/a2a/EventConverterTest.java renamed to a2a/src/test/java/com/google/adk/a2a/converters/EventConverterTest.java a2a/src/test/java/com/google/adk/a2a/EventConverterTest.java renamed to a2a/src/test/java/com/google/adk/a2a/converters/EventConverterTest.java

@@ -1,4 +1,4 @@
-package com.google.adk.a2a;
+package com.google.adk.a2a.converters;
 
 import static com.google.common.truth.Truth.assertThat;
 

a2a/webservice/src/main/java/com/google/adk/webservice/A2ARemoteService.java

@@ -1,7 +1,7 @@
 package com.google.adk.webservice;
 
 import com.google.adk.a2a.A2ASendMessageExecutor;
-import com.google.adk.a2a.ResponseConverter;
+import com.google.adk.a2a.converters.ResponseConverter;
 import io.a2a.spec.JSONRPCError;
 import io.a2a.spec.Message;
 import io.a2a.spec.MessageSendParams;