Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via freecol by janet-h
, 1 year ago
This exception has no message.
java.lang.NullPointerException at net.sf.freecol.client.gui.panel.MapControls.<init>(MapControls.java:94) at net.sf.freecol.client.gui.action.MapControlsAction.showMapControls(MapControlsAction.java:83) at net.sf.freecol.client.gui.action.MapControlsAction.update(MapControlsAction.java:58) at net.sf.freecol.client.gui.action.ActionManager.update(ActionManager.java:186) at net.sf.freecol.client.gui.Canvas.add(Canvas.java:1224) at net.sf.freecol.client.gui.Canvas.add(Canvas.java:1195) at net.sf.freecol.client.gui.Canvas.addCentered(Canvas.java:1184) at net.sf.freecol.client.gui.Canvas.showMainPanel(Canvas.java:1488) at net.sf.freecol.client.gui.Canvas.returnToTitle(Canvas.java:1585) at net.sf.freecol.client.gui.action.ShowMainAction.actionPerformed(ShowMainAction.java:61) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:374) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:829) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:873) at java.awt.Component.processMouseEvent(Component.java:6175) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:5940) at java.awt.Container.processEvent(Container.java:2105) at java.awt.Component.dispatchEventImpl(Component.java:4536) at java.awt.Container.dispatchEventImpl(Container.java:2163) at java.awt.Component.dispatchEvent(Component.java:4362) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055) at java.awt.Container.dispatchEventImpl(Container.java:2149) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4362) at java.awt.EventQueue.dispatchEvent(EventQueue.java:604) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177) at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)