Import AppCDS demo

.gitignore

@@ -5,3 +5,7 @@
 # Maven
 
 /target
+
+# Demos
+
+/app-cds

README.md

@@ -49,6 +49,7 @@ Check out the [jigsaw](http://blog.codefx.org/tag/project-jigsaw/) and [jpms](ht
 
 ## JVM & Tooling
 
+* ⑩ [application class-dara sharing](app-cds.sh) ([blog post](http://blog.codefx.org/java/application-class-data-sharing/), [JEP 310](http://openjdk.java.net/jeps/310))
 * ⑨ multi-release JARs: [classes](src/main/java/org/codefx/demo/java9/internal/multi_release) and [the script](multi-release.sh) ([JEP 238](http://openjdk.java.net/jeps/238))
 * ⑨ platform logging: [classes](src/platform_logging/java/org/codefx/demo/java9/api/platform_logging) and [the script](platform-logging.sh) ([JEP 264](http://openjdk.java.net/jeps/264))
 

app-cds.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+set -e
+source executables.sh
+
+rm -rf app-cds
+mkdir app-cds
+
+if ! [ -e target/java-x.jar ]
+then
+	printf "Building Maven project, so JAR is available...\n"
+    mvn clean install
+fi
+
+printf "\n--- RUN WITHOUT CDS ---\n\n"
+time $java -jar target/java-x.jar
+
+printf "\n--- RUN WITH CDS ---\n"
+printf "\n > create archive for default JDK classes\n"
+sudo $java -Xshare:dump
+printf "\n > use default archive\n"
+time $java -Xshare:on -jar target/java-x.jar
+printf "\n > non-archived classes\n"
+$java -Xshare:on \
+	-Xlog:class+load \
+	-jar target/java-x.jar \
+| grep -v "shared objects file"
+
+printf "\n--- RUN WITH APPLICATION CDS ---\n"
+printf "\n > record used classes\n"
+$java \
+	-XX:DumpLoadedClassList=app-cds/classes.lst \
+	-jar target/java-x.jar
+
+printf "\n > create archive for recorded classes\n"
+$java \
+	-Xshare:dump \
+	-XX:+UnlockDiagnosticVMOptions \
+	-XX:SharedClassListFile=app-cds/classes.lst \
+	-XX:SharedArchiveFile=app-cds/app.jsa \
+	--class-path target/java-x.jar
+
+printf "\n > use created archive\n"
+time $java \
+	-Xshare:on \
+	-XX:+UnlockDiagnosticVMOptions \
+	-XX:SharedArchiveFile=app-cds/app.jsa \
+	-jar target/java-x.jar \

pom.xml

@@ -54,6 +54,44 @@
 					</compilerArgs>
 				</configuration>
 			</plugin>
+			<plugin>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>3.1.0</version>
+				<configuration>
+					<archive>
+						<manifest>
+							<addClasspath>true</addClasspath>
+							<mainClass>org.codefx.demo.java10.jvm.acds.HelloAppCDS</mainClass>
+						</manifest>
+					</archive>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-dependency-plugin</artifactId>
+				<version>3.1.0</version>
+				<executions>
+					<execution>
+						<id>copy-installed</id>
+						<phase>install</phase>
+						<goals>
+							<goal>copy</goal>
+						</goals>
+						<configuration>
+							<artifactItems>
+								<artifactItem>
+									<groupId>${project.groupId}</groupId>
+									<artifactId>${project.artifactId}</artifactId>
+									<version>${project.version}</version>
+									<type>${project.packaging}</type>
+								</artifactItem>
+							</artifactItems>
+							<outputDirectory>target</outputDirectory>
+							<stripVersion>true</stripVersion>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
 		</plugins>
 	</build>
 

src/main/java/org/codefx/demo/java10/jvm/acds/HelloAppCDS.java

@@ -0,0 +1,9 @@
+package org.codefx.demo.java10.jvm.acds;
+
+public class HelloAppCDS {
+
+	public static void main(String[] args) {
+		System.out.println("Hello, application class-data sharing!");
+	}
+
+}