chore: Use default protocol version in tests (#582)

Author: kabir

spec/src/main/java/io/a2a/util/Utils.java

@@ -38,11 +38,6 @@ public class Utils {
 
     private static final Logger log = Logger.getLogger(Utils.class.getName());
 
-    /**
-     * Specification version constant for deprecation annotations.
-     */
-    public static final String SPEC_VERSION_1_0 = "1.0";
-
     /**
      * Returns the provided value if non-null, otherwise returns the default value.
      * <p>

transport/grpc/src/test/java/io/a2a/transport/grpc/handler/GrpcHandlerTest.java

@@ -966,7 +966,6 @@ public void testVersionNotSupportedErrorOnSendMessage() throws Exception {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         // Create handler that provides incompatible version 2.0 in the context
@@ -1012,7 +1011,6 @@ public void testVersionNotSupportedErrorOnSendStreamingMessage() throws Exceptio
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         // Create handler that provides incompatible version 2.0 in the context
@@ -1058,7 +1056,6 @@ public void testCompatibleVersionSuccess() throws Exception {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         // Create handler that provides compatible version 1.1 in the context
@@ -1110,7 +1107,6 @@ public void testNoVersionDefaultsToCurrentVersionSuccess() throws Exception {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         // Create handler that provides null version (should default to 1.0)

transport/jsonrpc/src/test/java/io/a2a/transport/jsonrpc/handler/JSONRPCHandlerTest.java

@@ -1781,7 +1781,6 @@ public void testVersionNotSupportedErrorOnMessageSend() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         JSONRPCHandler handler = new JSONRPCHandler(agentCard, requestHandler, internalExecutor);
@@ -1821,7 +1820,6 @@ public void testVersionNotSupportedErrorOnMessageSendStream() throws Exception {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         JSONRPCHandler handler = new JSONRPCHandler(agentCard, requestHandler, internalExecutor);
@@ -1898,7 +1896,6 @@ public void testCompatibleVersionSuccess() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         JSONRPCHandler handler = new JSONRPCHandler(agentCard, requestHandler, internalExecutor);
@@ -1942,7 +1939,6 @@ public void testNoVersionDefaultsToCurrentVersionSuccess() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         JSONRPCHandler handler = new JSONRPCHandler(agentCard, requestHandler, internalExecutor);

transport/rest/src/test/java/io/a2a/transport/rest/handler/RestHandlerTest.java

@@ -653,7 +653,6 @@ public void testVersionNotSupportedErrorOnSendMessage() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         RestHandler handler = new RestHandler(agentCard, requestHandler, internalExecutor);
@@ -705,7 +704,6 @@ public void testVersionNotSupportedErrorOnSendStreamingMessage() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         RestHandler handler = new RestHandler(agentCard, requestHandler, internalExecutor);
@@ -794,7 +792,6 @@ public void testCompatibleVersionSuccess() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         RestHandler handler = new RestHandler(agentCard, requestHandler, internalExecutor);
@@ -850,7 +847,6 @@ public void testNoVersionDefaultsToCurrentVersionSuccess() {
                 .defaultInputModes(List.of("text"))
                 .defaultOutputModes(List.of("text"))
                 .skills(List.of())
-                .protocolVersion("1.0")
                 .build();
 
         RestHandler handler = new RestHandler(agentCard, requestHandler, internalExecutor);