Erro Jasper Reports

MateriaisDAO materiaisDAO = new MateriaisDAO();
            rs = materiaisDAO.getRelatorio();
            String caminho = "D:/Rodrigo/Desenvolvimento/JAVA/RELATORIOS/";                
                            
	//implementação da interface JRDataSource para DataSource ResultSet
	JRResultSetDataSource jrRS = new JRResultSetDataSource( rs );               

	//executa o relatório
	Map parametros = new HashMap();		

           [i][b] // LINHA COM GERA O ERRO NA EXECUÇÂO [/b][/i]
            JasperFillManager.fillReportToFile(caminho + "ControleEstoque.jasper",parametros,jrRS);

	JasperExportManager.exportReportToPdfFile(caminho + "ControleEstoque.jrprint" );   
            JasperViewer.viewReport(caminho + "ControleEstoque.pdf",false);                                
            
	//exibe o resultado          
	//viewer.show();                
            
    }

ERRO:

Exception in thread “AWT-EventQueue-0” java.lang.NoClassDefFoundError: org/apache/commons/javaflow/bytecode/Continuable

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:620)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)

at java.net.URLClassLoader.access$000(URLClassLoader.java:56)

at java.net.URLClassLoader$1.run(URLClassLoader.java:195)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:188)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)

at java.lang.ClassLoader.loadClass(ClassLoader.java:251)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:601)

at net.sf.jasperreports.engine.JasperFillManager.fillReportToFile(JasperFillManager.java:492)

at net.sf.jasperreports.engine.JasperFillManager.fillReportToFile(JasperFillManager.java:448)

at relatorio.ReportsControleEstoque.gerar(ReportsControleEstoque.java:42)

at forms.MenuGUI.mnImprimeRelatorioMensalActionPerformed(MenuGUI.java:475)

at forms.MenuGUI.access$700(MenuGUI.java:29)

at forms.MenuGUI$9.actionPerformed(MenuGUI.java:277)

at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)

at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)

at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)

at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)

at javax.swing.AbstractButton.doClick(AbstractButton.java:357)

at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220)

at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261)

at java.awt.Component.processMouseEvent(Component.java:6041)

at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)

at java.awt.Component.processEvent(Component.java:5806)

at java.awt.Container.processEvent(Container.java:2058)

at java.awt.Component.dispatchEventImpl(Component.java:4413)

at java.awt.Container.dispatchEventImpl(Container.java:2116)

at java.awt.Component.dispatchEvent(Component.java:4243)

at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)

at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)

at java.awt.Container.dispatchEventImpl(Container.java:2102)

at java.awt.Window.dispatchEventImpl(Window.java:2440)

at java.awt.Component.dispatchEvent(Component.java:4243)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Caused by: java.lang.ClassNotFoundException: org.apache.commons.javaflow.bytecode.Continuable

at java.net.URLClassLoader$1.run(URLClassLoader.java:200)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:188)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)

at java.lang.ClassLoader.loadClass(ClassLoader.java:251)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)

… 46 more