class path resource [pointsconfig.properties] cannot be opened because it does not exist
<p>I am trying to learn the basic of the Spring framwork. I am using the <code>org.springframework.beans.factory.config.PropertyPlaceholderConfigurer</code> in the sping.xml to print the properties of the PointA but I am getting the error below.</p>

<p><strong>Triagle class</strong></p>

<pre><code>package org.stack;

import java.util.List;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class Triangle  {
    private Point PointA;
    private Point PointB;
    private Point PointC;
    private ApplicationContext context = null;

    public Point getPointA() {
        return PointA;
    }

    public void setPointA(Point pointA) {
        PointA = pointA;
    }

    public Point getPointB() {
        return PointB;
    }

    public void setPointB(Point pointB) {
        PointB = pointB;
    }

    public Point getPointC() {
        return PointC;
    }

    public void setPointC(Point pointC) {
        PointC = pointC;
    }

    public void draw() {

        System.out.println("Point A = (" + getPointA().getX() + ", "
                + getPointA().getY() + ")");
        System.out.println("Point B = (" + getPointB().getX() + ", "
                + getPointB().getY() + ")");
        System.out.println("Point C = (" + getPointC().getX() + ", "
                + getPointC().getY() + ")");

    }

}
</code></pre>

<p><strong>DrawingApp</strong></p>

<pre><code>package org.stack;


import org.springframework.context.ApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


public class DrawingApp {

    public static void main(String[] args) {


        AbstractApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
        context.registerShutdownHook();
        Triangle triangle =  (Triangle) context.getBean("triangle");
        triangle.draw();

    }
}
</code></pre>

<p><strong>spring.xml</strong></p>



<p></p>

<p>
    </p>

<pre><code>&lt;/bean&gt;

&lt;!-- We intialize here 3 Points objects --&gt;
&lt;bean id="pointA" class="org.stack.Point"&gt;
    &lt;property name="x" value="${PointA.pointY}" /&gt;
    &lt;property name="y" value="${PointA.pointY}" /&gt;
&lt;/bean&gt;



&lt;bean id="pointB" class="org.stack.Point"&gt;
    &lt;property name="x" value="-20" /&gt;
    &lt;property name="y" value="0" /&gt;
&lt;/bean&gt;

&lt;bean id="pointC" class="org.stack.Point"&gt;
    &lt;property name="x" value="20" /&gt;
    &lt;property name="y" value="0" /&gt;
&lt;/bean&gt;


&lt;bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"&gt;
  &lt;property name="locations" value="pointsconfig.properties"&gt;&lt;/property&gt;
&lt;/bean&gt;
</code></pre>

<p></p>

<p><strong>pointsconfig.properties file</strong></p>

<pre><code>PointA.pointX=0
PointA.pointY=0
</code></pre>

<p><a href="https://i.stack.imgur.com/VAPQm.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VAPQm.png" alt="enter image description here"></a></p>

<p><strong>error</strong></p>

<pre><code>Mai 31, 2016 1:25:24 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
INFORMATION: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@619a5dff: startup date [Tue May 31 13:25:24 CEST 2016]; root of context hierarchy
Mai 31, 2016 1:25:24 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFORMATION: Loading XML bean definitions from class path resource [spring.xml]
Mai 31, 2016 1:25:25 PM org.springframework.beans.factory.config.PropertyPlaceholderConfigurer loadProperties
INFORMATION: Loading properties file from class path resource [pointsconfig.properties]
Mai 31, 2016 1:25:25 PM org.springframework.context.support.ClassPathXmlApplicationContext refresh
WARNUNG: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: class path resource [pointsconfig.properties] cannot be opened because it does not exist
Exception in thread "main" org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: class path resource [pointsconfig.properties] cannot be opened because it does not exist
    at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:89)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:166)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520)
    at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:83)
    at org.stack.DrawingApp.main(DrawingApp.java:14)
Caused by: java.io.FileNotFoundException: class path resource [pointsconfig.properties] cannot be opened because it does not exist
    at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
    at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:153)
    at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:98)
    at org.springframework.core.io.support.PropertiesLoaderSupport.loadProperties(PropertiesLoaderSupport.java:175)
    at org.springframework.core.io.support.PropertiesLoaderSupport.mergeProperties(PropertiesLoaderSupport.java:156)
    at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:80)
    ... 7 more
</code></pre>