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Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
at java.io.ObjectInputStream$PeekInputStream.read(ObjectInputStream.java:2264)
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2277)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2748)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:191)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:580)
at br.com.placa.controle.ControleAtribuicao.gerarRelatorio(ControleAtribuicao.java:410)
at br.com.placa.visao.VisaoAtribuicao.actionPerformed(VisaoAtribuicao.java:194)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
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:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
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)
public void gerarRelatorio() {
String relatorioJasper = "RelatorioAtribuicao.jasper";
// Stream com o .jasper''
InputStream inputStream = getClass().getResourceAsStream(relatorioJasper);
// O datasource
JRBeanCollectionDataSource dataSource = new JRBeanCollectionDataSource(listaAtribuicao);
// Parametros do relatorios
Map parametros = new HashMap();
try {
JasperPrint jasperPrint = JasperFillManager.fillReport(inputStream, parametros, dataSource);
JasperViewer jasperViewer = new JasperViewer(jasperPrint, true);
jasperViewer.setVisible(true);
} catch (JRException e) {
JOptionPane.showMessageDialog(visao, e.getMessage(), "Erro", JOptionPane.ERROR_MESSAGE);
}
}
