title: Quartz doesn't recognize schema job_scheduling_data_2_0.xsd present in quartz jar file
body: <p>I am getting below exception on server startup.</p>
  
  <p>I am using quartz 2.2.21 with spring 3.2.
  I have enabled quartz plugin (org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin). </p>
  
  <p>Please find below the start tag of our XML file:
      </p>
  
  <p>During server startup we are getting below log information and stacktrace:</p>
  
  <p>Error Message:</p>
  
  <pre><code>Unable to load local schema packaged in quartz distribution jar. Utilizing schema online at http://www.quartz-scheduler.org/xml/job_scheduling_data_2_0.xsd
  </code></pre>
  
  <p>Exception:</p>
  
  <pre><code>Caused by: org.xml.sax.SAXParseException; systemId: file:///quartz_job_data.xml; lineNumber: 5; columnNumber: 104;
  schema_reference.4: Failed to read schema document 'http://www.quartz-scheduler.org/xml/job_scheduling_data_2_0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not &lt;xsd:schema&gt;.
  </code></pre>