FIX [BUG] LineBlobClient is not using the new endpoint.

This closes #432.

Author: kazuki-ma

line-bot-api-client/src/main/java/com/linecorp/bot/client/LineBlobClientBuilder.java

@@ -57,9 +57,9 @@ public class LineBlobClientBuilder {
     /**
      * API Endpoint.
      *
-     * <p>Default value = "https://api.line.me/".
+     * <p>Default value = "https://api-data.line.me/".
      */
-    private URI apiEndPoint = LineClientConstants.DEFAULT_API_END_POINT;
+    private URI apiEndPoint = LineClientConstants.DEFAULT_BLOB_END_POINT;
 
     /**
      * API Endpoint.
@@ -74,7 +74,7 @@ public LineBlobClientBuilder apiEndPoint(String apiEndPoint) {
     /**
      * API Endpoint.
      *
-     * <p>Default value = "https://api.line.me/".
+     * <p>Default value = "https://api-data.line.me/".
      */ // We can remove this after delete `setApiEndPoint(String apiEndPoint)`.
     public LineBlobClientBuilder apiEndPoint(URI apiEndPoint) {
         this.apiEndPoint = requireNonNull(apiEndPoint, "apiEndPoint");

line-bot-api-client/src/test/java/com/linecorp/bot/client/LineBlobClientBuilderTest.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2020 LINE Corporation
+ *
+ * LINE Corporation licenses this file to you under the Apache License,
+ * version 2.0 (the "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at:
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.linecorp.bot.client;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.lang.reflect.Field;
+import java.net.URI;
+
+import org.junit.Test;
+
+public class LineBlobClientBuilderTest {
+    @Test
+    public void defaultDomainTest() throws Exception {
+        // Do
+        final LineBlobClientBuilder defaultBuilder = new LineBlobClientBuilder();
+        final Field field = defaultBuilder.getClass().getDeclaredField("apiEndPoint");
+        field.setAccessible(true);
+        final Object apiEndPoint = field.get(defaultBuilder);
+
+        // Verify
+        assertThat(apiEndPoint)
+                .isEqualTo(URI.create("https://api-data.line.me/"));
+    }
+}