add java hello world example

bin/jwrapper.xml

@@ -5,7 +5,7 @@
 
  <jvmtype>client</jvmtype>
 
- <mainclass>Hello</mainclass>
+ <mainclass>com.github.vintage.wang.jwrapper.sample.HelloWorld</mainclass>
 
  <properties>
  <java.ext.dirs>${cpd}/../lib</java.ext.dirs>
@@ -17,10 +17,7 @@
  </properties>
 
  <classpaths>
- <path>cp1</path>
- <path>cp2</path>
- <path>${cwd}/../lib</path>
- <jars>cp3</jars>
+ <path>${cpd}/../samples/Hello/target/Hello-1.0-SNAPSHOT.jar</path>
  </classpaths>
 
  <options>

samples/Hello/pom.xml

@@ -0,0 +1,25 @@
+<project xmlns="http:https://maven.apache.org/POM/4.0.0" xmlns:xsi="http:https://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http:https://maven.apache.org/POM/4.0.0 http:https://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>com.github.vintage.wang.jwrapper</groupId>
+ <artifactId>Hello</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <packaging>jar</packaging>
+
+ <name>Hello</name>
+ <url>http:https://maven.apache.org</url>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>3.8.1</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+</project>

samples/Hello/src/main/java/com/github/vintage/wang/jwrapper/sample/HelloWorld.java

@@ -0,0 +1,8 @@
+package com.github.vintage.wang.jwrapper.sample;
+
+public class HelloWorld {
+ public static void main(String[] args) {
+ System.out.println("Hello World!");
+ System.exit(0);
+ }
+}