After downloading a file and restarting the program, removing a download results in the following exception.
java.lang.NullPointerException: ListEventListener is undefined
at ca.odell.glazedlists.impl.Preconditions.checkNotNull(Preconditions.java:120)
at ca.odell.glazedlists.event.ListEventAssembler.removeListEventListener(ListEventAssembler.java:388)
at ca.odell.glazedlists.AbstractEventList.removeListEventListener(AbstractEventList.java:79)
at com.github.moaxcp.downloadmanager.model.db.Download.removeWordsListener(Download.java:343)
at com.github.moaxcp.downloadmanager.model.DownloadSaver.listChanged(DownloadSaver.java:326)
at ca.odell.glazedlists.event.ListEventAssembler$ListEventFormat.fire(ListEventAssembler.java:424)
at ca.odell.glazedlists.event.ListEventAssembler$ListEventFormat.fire(ListEventAssembler.java:421)
at ca.odell.glazedlists.event.SequenceDependenciesEventPublisher$SubjectAndListener.firePendingEvent(SequenceDependenciesEventPublisher.java:445)
at ca.odell.glazedlists.event.SequenceDependenciesEventPublisher.fireEvent(SequenceDependenciesEventPublisher.java:344)
at ca.odell.glazedlists.event.ListEventAssembler.commitEvent(ListEventAssembler.java:317)
at ca.odell.glazedlists.BasicEventList.remove(BasicEventList.java:180)
at ca.odell.glazedlists.TransformedList.remove(TransformedList.java:114)
at ca.odell.glazedlists.impl.ThreadSafeList.remove(ThreadSafeList.java:290)
at ca.odell.glazedlists.TransformedList.remove(TransformedList.java:114)
at ca.odell.glazedlists.AbstractEventList.remove(AbstractEventList.java:240)
at com.github.moaxcp.downloadmanager.control.MainWindowControl.actionPerformed(MainWindowControl.java:134)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at com.github.moaxcp.downloadmanager.util.EventRateCounter.dispatchEvent(EventRateCounter.java:34)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
After downloading a file and restarting the program, removing a download results in the following exception.
java.lang.NullPointerException: ListEventListener is undefined at ca.odell.glazedlists.impl.Preconditions.checkNotNull(Preconditions.java:120) at ca.odell.glazedlists.event.ListEventAssembler.removeListEventListener(ListEventAssembler.java:388) at ca.odell.glazedlists.AbstractEventList.removeListEventListener(AbstractEventList.java:79) at com.github.moaxcp.downloadmanager.model.db.Download.removeWordsListener(Download.java:343) at com.github.moaxcp.downloadmanager.model.DownloadSaver.listChanged(DownloadSaver.java:326) at ca.odell.glazedlists.event.ListEventAssembler$ListEventFormat.fire(ListEventAssembler.java:424) at ca.odell.glazedlists.event.ListEventAssembler$ListEventFormat.fire(ListEventAssembler.java:421) at ca.odell.glazedlists.event.SequenceDependenciesEventPublisher$SubjectAndListener.firePendingEvent(SequenceDependenciesEventPublisher.java:445) at ca.odell.glazedlists.event.SequenceDependenciesEventPublisher.fireEvent(SequenceDependenciesEventPublisher.java:344) at ca.odell.glazedlists.event.ListEventAssembler.commitEvent(ListEventAssembler.java:317) at ca.odell.glazedlists.BasicEventList.remove(BasicEventList.java:180) at ca.odell.glazedlists.TransformedList.remove(TransformedList.java:114) at ca.odell.glazedlists.impl.ThreadSafeList.remove(ThreadSafeList.java:290) at ca.odell.glazedlists.TransformedList.remove(TransformedList.java:114) at ca.odell.glazedlists.AbstractEventList.remove(AbstractEventList.java:240) at com.github.moaxcp.downloadmanager.control.MainWindowControl.actionPerformed(MainWindowControl.java:134) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6535) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6300) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4891) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4713) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) at java.awt.Container.dispatchEventImpl(Container.java:2280) at java.awt.Window.dispatchEventImpl(Window.java:2750) at java.awt.Component.dispatchEvent(Component.java:4713) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQueue$4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at com.github.moaxcp.downloadmanager.util.EventRateCounter.dispatchEvent(EventRateCounter.java:34) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)