BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

maven-all/compiler-plugin-java-9/README.md

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+### Relevant Articles
+
+- [Maven Compiler Plugin](http://www.baeldung.com/maven-compiler-plugin)

maven-all/compiler-plugin-java-9/pom.xml

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+<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>com.baeldung</groupId>
+	<artifactId>compiler-plugin-java-9</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.8.0</version>
+				<configuration>
+					<source>9</source>
+					<target>9</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+</project>

maven-all/compiler-plugin-java-9/src/main/java/com/baeldung/maven/java9/MavenCompilerPlugin.java

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+package com.baeldung.maven.java9;
+
+import static javax.xml.XMLConstants.XML_NS_PREFIX;
+
+public class MavenCompilerPlugin {
+    public static void main(String[] args) {
+        System.out.println("The XML namespace prefix is: " + XML_NS_PREFIX);
+    }
+}

maven-all/compiler-plugin-java-9/src/main/java/module-info.java

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+module com.baeldung.maven.java9 {
+    requires java.xml;
+}