AccessController.doPrivileged() has thrown a NullPointerException

java.lang.NullPointerException
Javadoc
Thrown when an application attempts to use {@code null} in a case where an object is required. These include:
  • Calling the instance method of a {@code null} object.
  • Accessing or modifying the field of a {@code null} object.
  • Taking the length of {@code null} as if it were an array.
  • Accessing or modifying the slots of {@code null} as if it were an array.
  • Throwing {@code null} as if it were a {@code Throwable} value.

Applications should throw instances of this class to indicate other illegal uses of the {@code null} object. {@code NullPointerException} objects may be constructed by the virtual machine as if {@linkplain Throwable#Throwable(String, Throwable, boolean, boolean) suppression were disabled and/or the stack trace was not writable}. @author unascribed @since JDK1.0

at com.jsql.view.swing.tree.model.AbstractNodeModel.displayProgress
at com.jsql.view.swing.tree.model.AbstractNodeModel.getComponent
at com.jsql.view.swing.tree.CellRendererNode.getTreeCellRendererComponent
at javax.swing.plaf.basic.BasicTreeUI$NodeDimensionsHandler.getNodeDimensions
(source)
at javax.swing.tree.AbstractLayoutCache.getNodeDimensions
(source)
at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.updatePreferredSize
(source)
at javax.swing.tree.VariableHeightLayoutCache.updateNodeSizes
(source)
at javax.swing.tree.VariableHeightLayoutCache.invalidateSizes
(source)
at javax.swing.plaf.basic.BasicTreeUI.setRootVisible
(source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.propertyChange
(source)
at java.beans.PropertyChangeSupport.fire
(source)
at java.beans.PropertyChangeSupport.firePropertyChange
(source)
at java.beans.PropertyChangeSupport.firePropertyChange
(source)
at java.beans.PropertyChangeSupport.firePropertyChange
(source)
at java.awt.Component.firePropertyChange
(source)
at javax.swing.JComponent.firePropertyChange
(source)
at com.jsql.view.swing.tab.AdapterLeftTabbedPane$1.treeNodesChanged
at javax.swing.tree.DefaultTreeModel.fireTreeNodesChanged
(source)
at javax.swing.tree.DefaultTreeModel.nodesChanged
(source)
at javax.swing.tree.DefaultTreeModel.nodeChanged
(source)
at com.jsql.view.swing.interaction.StartProgress.execute
at com.jsql.view.swing.JFrameGUI.update
at java.util.Observable.notifyObservers
(source)
at com.jsql.model.injection.AbstractModelObservable$1.run
at java.awt.event.InvocationEvent.dispatch
(source)
at java.awt.EventQueue.dispatchEventImpl
(source)
at java.awt.EventQueue.access$500
at java.awt.EventQueue$3.run
at java.awt.EventQueue$3.run
at java.security.AccessController.doPrivileged
(source)
29 frames hidden

Typical Exception Messages

  1. <No message>

Origin

EventQueue.dispatchEventImpl() has thrown a NullPointerException

java.lang.NullPointerException
25 frames hidden
java.awt.EventQueue.dispatchEventImpl
6Web pages

Specific cases

External results for this pattern (3)

  1. jsql-robotvia GitHub1 year ago
    No message found for this stack trace.
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  2. jsql-robotvia GitHub1 year ago
    No message found for this stack trace.
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  3. jsql-robotvia GitHub1 year ago
    No message found for this stack trace.
    Show stack trace