Make tests classes and HubMessageType enum package private in the Java client(#2992)

clients/java/signalr/src/main/java/com/microsoft/aspnet/signalr/HubMessageType.java

@@ -3,7 +3,7 @@
 
 package com.microsoft.aspnet.signalr;
 
-public enum HubMessageType {
+enum HubMessageType {
     INVOCATION(1),
     STREAM_ITEM(2),
     COMPLETION(3),

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/HandshakeProtocolTest.java

@@ -7,7 +7,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 import org.junit.jupiter.api.Test;
 
-public class HandshakeProtocolTest {
+class HandshakeProtocolTest {
 
     @Test
     public void VerifyCreateHandshakerequestMessage() {

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/HubConnectionTest.java

@@ -14,7 +14,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import org.junit.jupiter.api.Test;
 
 
-public class HubConnectionTest {
+class HubConnectionTest {
     private static final String RECORD_SEPARATOR = "\u001e";
 
     @Test

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/HubExceptionTest.java

@@ -7,7 +7,7 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.junit.jupiter.api.Test;
 
-public class HubExceptionTest {
+class HubExceptionTest {
     @Test
     public void VeryHubExceptionMesssageIsSet() {
         String errorMessage = "This is a HubException";

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/JsonHubProtocolTest.java

@@ -12,7 +12,7 @@ import java.util.List;
 import org.junit.jupiter.api.Test;
 
 
-public class JsonHubProtocolTest {
+class JsonHubProtocolTest {
     private JsonHubProtocol jsonHubProtocol = new JsonHubProtocol();
 
     @Test

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/NegotiateResponseTest.java

@@ -8,7 +8,7 @@ import static org.junit.jupiter.api.Assertions.*;
 import org.junit.jupiter.api.Test;
 
 
-public class NegotiateResponseTest {
+class NegotiateResponseTest {
 
     @Test
     public void VerifyNegotiateResponse() {

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/ResolveNegotiateUrlTest.java

@@ -11,7 +11,7 @@ import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class ResolveNegotiateUrlTest {
+class ResolveNegotiateUrlTest {
     private static Stream<Arguments> protocols() {
         return Stream.of(
                 Arguments.of("http://example.com/hub/", "http://example.com/hub/negotiate"),

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/WebSocketTransportTest.java

@@ -9,7 +9,7 @@ import java.util.concurrent.TimeUnit;
 
 import org.junit.jupiter.api.Test;
 
-public class WebSocketTransportTest {
+class WebSocketTransportTest {
     @Test
     public void WebsocketThrowsIfItCantConnect() throws Exception {
         Transport transport = new WebSocketTransport("www.notarealurl12345.fake", new NullLogger());

clients/java/signalr/src/test/java/com/microsoft/aspnet/signalr/WebSocketTransportUrlFormatTest.java

@@ -12,7 +12,7 @@ import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
-public class WebSocketTransportUrlFormatTest {
+class WebSocketTransportUrlFormatTest {
     private static Stream<Arguments> protocols() {
         return Stream.of(
                 Arguments.of("http://example.com", "ws://example.com"),