Remove dubbo-admin, why it appears?

dubbo-admin/src/main/java/com/alibaba/dubbo/governance/web/util/ContextUtil.java

-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF 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.alibaba.dubbo.governance.web.util;
-
-import java.util.Map;
-
-/**
- * TODO Comment of ContextUtil
- *
- */
-public class ContextUtil {
-
-    private ContextUtil(Map<String, Object> c) {
-    }
-
-    public static Object get(Map<String, Object> context, Object key, Object defaultv) {
-        Object res = context.get(key);
-        if (res == null) {
-            res = defaultv;
-        }
-        return res;
-    }
-}
-

dubbo-admin/src/test/java/com/alibaba/dubbo/registry/common/domain/PageListTest.java

-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF 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.alibaba.dubbo.registry.common.domain;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-/**
- * TODO Comment of PageListTest
- *
- */
-public class PageListTest {
-
-    @Test
-    public void testGetPageCount() {
-        //int start, int limit, int total, List<T> list
-        PageList<Object> pl = new PageList<Object>(0, 100, 52, null);
-        Assert.assertEquals(1, pl.getPageCount());
-
-        pl = new PageList<Object>(0, -100, -3, null);
-        Assert.assertEquals(1, pl.getPageCount());
-
-        pl = new PageList<Object>(0, 30, 100, null);
-        Assert.assertEquals(4, pl.getPageCount());
-    }
-
-}