initialize collector ui graphql module.

apm-collector/apm-collector-ui/collector-ui-graphql/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  ~
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>apm-collector-ui</artifactId>
+        <groupId>org.apache.skywalking</groupId>
+        <version>5.0.0-alpha</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>collector-ui-graphql</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.graphql-java</groupId>
+            <artifactId>graphql-java-tools</artifactId>
+            <version>4.3.0</version>
+        </dependency>
+    </dependencies>
+</project>

apm-collector/apm-collector-ui/collector-ui-jetty-provider/pom.xml

@@ -36,6 +36,11 @@
             <artifactId>collector-ui-define</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.skywalking</groupId>
+            <artifactId>collector-ui-graphql</artifactId>
+            <version>${project.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.apache.skywalking</groupId>
             <artifactId>collector-cluster-define</artifactId>

apm-collector/apm-collector-ui/pom.xml

@@ -31,6 +31,7 @@
     <packaging>pom</packaging>
     <modules>
         <module>collector-ui-define</module>
+        <module>collector-ui-graphql</module>
         <module>collector-ui-jetty-provider</module>
     </modules>