title: JasperReports 6.3. Get 'Class com.jaspersoft.jrx.query.PlSqlQueryExecuterFactory not found' error for plsql language used at queryString
body: <p>Trying to upgrade reports from <em>JasperReports 3.5.3</em> to <em>6.3.1</em>.</p>
  
  <p>The snippet from <em>jrxml</em>:</p>
  
  <pre><code>&lt;queryString language = "plsql"&gt; &lt;![CDATA[{call RPT_OCP($P{CUR},$P{ORACLE_REF_CURSOR})}]]&gt; &lt;/queryString&gt;
  </code></pre>
  
  <p>While trying to compile the report, facing the following exception,</p>
  
  <pre><code>Caused by: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Class com.jaspersoft.jrx.query.PlSqlQueryExecuterFactory not found.
       [java]     at net.sf.jasperreports.engine.design.JRDesignDataset.queryLanguageChanged(JRDesignDataset.java:1255)
       [java]     at net.sf.jasperreports.engine.design.JRDesignDataset.setQuery(JRDesignDataset.java:695)
       [java]     at net.sf.jasperreports.engine.design.JasperDesign.setQuery(JasperDesign.java:881)
       [java]     ... 37 more
  </code></pre>
  
  <p>The <em>JasperReports</em> of 6.3.1 version does not have any <em>jasperreport-extentions jar</em>, what would be the work around for this?</p>