Bump dependencies and add minimal README (#9)

Author: FDelporte

.gitignore

@@ -0,0 +1,2 @@
+/.idea
+/target

README.md

@@ -0,0 +1,6 @@
+# CRaC Example application
+
+For more info, check:
+
+* [What is CRaC?](https://docs.azul.com/core/crac/crac-introduction)
+* About this example application: [Step-by-step CRaC support for a Jetty app](https://github.com/CRaC/docs/blob/master/STEP-BY-STEP.md).

pom.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <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>
@@ -19,13 +18,18 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-server</artifactId>
-      <version>9.4.30.v20200611</version>
+      <version>9.4.48.v20220622</version>
+    </dependency>
+    <dependency>
+      <groupId>org.crac</groupId>
+      <artifactId>crac</artifactId>
+      <version>1.3.0</version>
     </dependency>
     <dependency>
       <groupId>org.crac</groupId>
@@ -45,13 +49,15 @@
         <maven.compiler.target>14</maven.compiler.target>
       </properties>
     </profile>
+
     <profile>
       <id>javax</id>
       <properties>
         <maven.compiler.source>14</maven.compiler.source>
         <maven.compiler.target>14</maven.compiler.target>
       </properties>
     </profile>
+
     <profile>
       <id>org</id>
       <properties>
@@ -61,7 +67,6 @@
     </profile>
   </profiles>
 
-
   <build>
     <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
       <plugins>

src/main/java/com/example/App.java

@@ -5,8 +5,6 @@
 import javax.servlet.ServletException;
 import java.io.IOException;
 
-// org.crac could be used instead of jdk.crac
-// https://github.com/CRaC/docs#orgcrac
 import org.crac.Context;
 import org.crac.Core;
 import org.crac.Resource;