Added Engine API example with GUI demo

Author: StevenJDH

pom.xml

@@ -1,29 +1,106 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!-- 
+  This file is part of Qlik Sense Java Examples <https://github.com/StevenJDH/Qlik-Sense-Java-Examples>.
+  Copyright (C) 2019-2020 Steven Jenkins De Haro.
+ 
+  Qlik Sense Java Examples is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+ 
+  Qlik Sense Java Examples is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+ 
+  You should have received a copy of the GNU General Public License
+  along with Qlik Sense Java Examples.  If not, see <http://www.gnu.org/licenses/>.
+-->
 <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">
     <modelVersion>4.0.0</modelVersion>
     <groupId>examples</groupId>
     <artifactId>QlikSenseJavaExamples</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.1-SNAPSHOT</version>
     <packaging>jar</packaging>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>12</maven.compiler.source>
         <maven.compiler.target>12</maven.compiler.target>
     </properties>
-	<build>
+    <dependencies>
+        
+        <!-- https://mvnrepository.com/artifact/org.java-websocket/Java-WebSocket -->
+        <dependency>
+            <groupId>org.java-websocket</groupId>
+            <artifactId>Java-WebSocket</artifactId>
+            <version>1.5.1</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.json/json -->
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>20200518</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.30</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+            <version>1.7.30</version>
+        </dependency>
+        
+    </dependencies>
+    <build>
         <plugins>
+            <!-- Added to have an Uber JAR and to avoid java.lang.NoClassDefFoundError errors. -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>2.4</version>
-                <configuration>
-                    <archive>
-                        <manifest>
-                            <addClasspath>true</addClasspath>
-                            <mainClass>TicketAPI.TicketRequestDemo</mainClass>
-                        </manifest>
-                    </archive>
-                </configuration>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <artifactSet>
+                                <includes>
+                                    <include>org.java-websocket:Java-WebSocket</include>
+                                    <include>org.json:json</include>
+                                    <include>org.slf4j:*</include>
+                                    <include>log4j:log4j</include>
+                                </includes>
+                            </artifactSet>
+                            <!-- Ingore accessed denied error when compiling, it's a bug when using minimizeJar.
+                            Ticket: https://issues.apache.org/jira/browse/MSHADE-366 -->
+                            <minimizeJar>true</minimizeJar>
+                            <filters>
+                                <filter>
+                                    <artifact>*:*</artifact>
+                                    <excludes>
+                                        <exclude>META-INF/*.MF</exclude>
+                                    </excludes>
+                                </filter>
+                            </filters>
+                            <transformers>
+                                <transformer
+                                    implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>Demo.DemoSelector</mainClass>
+                                </transformer>
+                            </transformers>
+                            <!-- Fixes "Project's main artifact is processed through maven-shade-plugin." -->
+                            <shadedArtifactAttached>true</shadedArtifactAttached>
+                            <!-- Can be any name that makes sense or it will be "shaded." -->
+                            <shadedClassifierName>Uber</shadedClassifierName>
+                        </configuration>
+                    </execution>
+                </executions>
             </plugin>
         </plugins>
     </build>