java.lang.IllegalAccessError when using a java class from within the file
11 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Nikolaus Koopmann
le 25 Avr 2023
Réponse apportée : Nikolaus Koopmann
le 27 Avr 2023
When I use my JTableForMatlabMod in Matlab i get a java.lang.IllegalAccessError in the method that wants to instantiate a BtnCE object. Why can this be? BtnCE is in the same file as JTableForMatlabMod. I can use FilterData from JTableForMatlabMod with no problem. In an older version everything worked just fine. The only possible difference really is that I don't how the old version was compiled. I am using OpenJDK 1.7 and that's the only version with which I got it running at all.. Anyone got an idea?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1365624/image.png)
// THIS ONE I CAN USE!
class FilterData {
// lots of stuff left out here
// ...
}
class BtnCE extends AbstractCellEditor implements TableCellEditor, ActionListener, MouseListener {
private final JButton editButton;
private final JTable tbl;
private boolean isButtonColumnEditor;
public BtnCE(JTable table, String txt, Font myFont) {
this.editButton = new JButton(txt);
this.editButton.setFont(myFont);
editButton.addActionListener(this);
this.tbl = table;
this.tbl.addMouseListener(this);
}
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
return editButton;
}
@Override
public Object getCellEditorValue() {
return editButton.getText();
}
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
this.stopCellEditing();
this.tbl.removeMouseListener(this);
}
public void mouseClicked(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
}
public class JTableForMatlabMod extends JTable {
// lots of stuff left out here
// ...
@Override
public TableCellEditor getCellEditor(int row, int column) {
// lots of stuff left out here
// ...
if ((this.btns != null) && (this.btns[this.convertRowIndexToModel(row)][modelColumn] == true))
return new BtnCE(this, this.getValueAt(row, modelColumn).toString(), this.myFont);
// lots of stuff left out here
// ...
}
// lots of stuff left out here
// ...
}
Here's the java error text:
Exception in thread "AWT-EventQueue-0": java.lang.IllegalAccessError: BtnCE
at JTableForMatlabMod.getCellEditor(JTableForMatlabMod.java:478)
at javax.swing.JTable.editCellAt(JTable.java:3516)
at javax.swing.plaf.basic.BasicTableUI$Handler.adjustSelection(BasicTableUI.java:1108)
at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(BasicTableUI.java:1038)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:280)
at java.awt.Component.processMouseEvent(Component.java:6536)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4532)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
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:74)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
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)
Exception "java.lang.ClassNotFoundException: com/intellij/codeInsight/editorActions/FoldingData"while constructing DataFlavor for: application/x-java-jvm-local-objectref; class=com.intellij.codeInsight.editorActions.FoldingData
Exception "java.lang.ClassNotFoundException: com/intellij/codeInsight/editorActions/FoldingData"while constructing DataFlavor for: application/x-java-jvm-local-objectref; class=com.intellij.codeInsight.editorActions.FoldingData
Exception "java.lang.ClassNotFoundException: com/intellij/codeInsight/editorActions/ReferenceData"while constructing DataFlavor for: application/x-java-jvm-local-objectref; class=com.intellij.codeInsight.editorActions.ReferenceData
Exception "java.lang.ClassNotFoundException: com/intellij/codeInsight/editorActions/ReferenceData"while constructing DataFlavor for: application/x-java-jvm-local-objectref; class=com.intellij.codeInsight.editorActions.ReferenceData
0 commentaires
Réponse acceptée
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Migrate GUIDE Apps dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!